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1.
Article in English | MEDLINE | ID: mdl-38591179

ABSTRACT

Objective: Neurotoxic chemicals are suggested in the etiology of amyotrophic lateral sclerosis (ALS). We examined the association of environmental and occupational risk factors including persistent organochlorine pesticides (OCPs) and ALS risk among cases from the Centers for Disease Control and Prevention National ALS Registry and age, sex, and county-matched controls. Methods: Participants completed a risk factor survey and provided a blood sample for OCP measurement. ALS cases were confirmed through the Registry. Conditional logistic regression assessed associations between ALS and risk factors including OCP levels. Results: 243 matched case-control pairs (61.7% male, mean [SD] age = 62.9 [10.1]) were included. Fifteen of the 29 OCPs examined had sufficient detectable levels for analysis. Modest correlations of self-reported years of exposure to residential pesticide mixtures and OCP serum levels were found (p<.001). Moreover, occupational exposure to lead including soldering and welding with lead/metal dust and use of lead paint/gasoline were significantly related to ALS risk (OR = 1.77, 95% CI: 1.11-2.83). Avocational gardening was a significant risk factor for ALS (OR = 1.57, 95% CI: 1.04-2.37). ALS risk increased for each 10 ng/g of α-Endosulfan (OR = 1.42, 95% CI: 1.14-1.77) and oxychlordane (OR = 1.24, 95% CI: 1.01-1.53). Heptachlor (detectable vs. nondetectable) was also associated with ALS risk (OR = 3.57, 95% CI: 1.50-8.52). Conclusion: This national case-control study revealed both survey and serum levels of OCPs as risk factors for ALS. Despite the United States banning many OCPs in the 1970s and 1980s, their use abroad and long half-lives continue to exert possible neurotoxic health effects.

2.
Article in English | MEDLINE | ID: mdl-38673376

ABSTRACT

Preterm delivery (PTD) complications are a major cause of childhood morbidity and mortality. We aimed to assess trends in PTD and small for gestational age (SGA) and whether trends varied between race-ethnic groups in South Carolina (SC). We utilized 2015-2021 SC vital records linked to hospitalization and emergency department records. PTD was defined as clinically estimated gestation less than (<) 37 weeks (wks.) with subgroup analyses of PTD < 34 wks. and < 28 wks. SGA was defined as infants weighing below the 10th percentile for gestational age. This retrospective study included 338,532 (243,010 before the COVID-19 pandemic and 95,522 during the pandemic) live singleton births of gestational age ≥ 20 wks. born to 260,276 mothers in SC. Generalized estimating equations and a change-point during the first quarter of 2020 helped to assess trends. In unadjusted analyses, pre-pandemic PTD showed an increasing trend that continued during the pandemic (relative risk (RR) = 1.04, 95% CI: 1.02-1.06). PTD < 34 wks. rose during the pandemic (RR = 1.07, 95% CI: 1.02-1.12) with a significant change in the slope. Trends in SGA varied by race and ethnicity, increasing only in Hispanics (RR = 1.02, 95% CI: 1.00-1.04) before the pandemic. Our study reveals an increasing prevalence of PTD and a rise in PTD < 34 wks. during the pandemic, as well as an increasing prevalence of SGA in Hispanics during the study period.


Subject(s)
COVID-19 , Infant, Small for Gestational Age , Premature Birth , Humans , COVID-19/epidemiology , South Carolina/epidemiology , Female , Premature Birth/epidemiology , Retrospective Studies , Infant, Newborn , Pregnancy , Adult , SARS-CoV-2 , Young Adult , Pandemics
3.
Healthcare (Basel) ; 12(5)2024 Mar 06.
Article in English | MEDLINE | ID: mdl-38470708

ABSTRACT

Gestational hypertension, preeclampsia, eclampsia, and chronic hypertension (CHTN) are associated with adverse infant outcomes and disproportionately affect minoritized race/ethnicity groups. We evaluated the relationships between hypertensive disorders of pregnancy (HDP) and/or CHTN with infant mortality, preterm delivery (PTD), and small for gestational age (SGA) in a statewide cohort with a diverse racial/ethnic population. All live, singleton deliveries in South Carolina (2004-2016) to mothers aged 12-49 were evaluated for adverse outcomes: infant mortality, PTD (20 to less than <37 weeks) and SGA (<10th birthweight-for-gestational-age percentile). Logistic regression models adjusted for sociodemographic, behavioral, and clinical characteristics. In 666,905 deliveries, mothers had superimposed preeclampsia (HDP + CHTN; 1.0%), HDP alone (8.0%), CHTN alone (1.8%), or no hypertension (89.1%). Infant mortality risk was significantly higher in deliveries to women with superimposed preeclampsia, HDP, and CHTN compared with no hypertension (relative risk [RR] = 1.79, 1.39, and 1.48, respectively). After accounting for differing risk by race/ethnicity, deliveries to women with HDP and/or CHTN were more likely to result in PTD (RRs ranged from 3.14 to 5.25) or SGA (RRs ranged from 1.67 to 3.64). As CHTN, HDP and superimposed preeclampsia confer higher risk of adverse outcomes, prevention efforts should involve encouraging and supporting mothers in mitigating modifiable cardiovascular risk factors.

4.
Article in English | MEDLINE | ID: mdl-38248552

ABSTRACT

Hypertensive disorders of pregnancy (HDP) and pre-pregnancy hypertension contribute to maternal morbidity and mortality. We examined the association of HDP and pre-pregnancy hypertension with subsequent venous thromboembolic (VTE) events. The retrospective cohort study included 444,859 women with ≥1 live, singleton birth in South Carolina (2004-2016). Hospital and emergency department visit and death certificate data defined incident VTE, HDP, and pre-pregnancy hypertension. Birth certificate data also defined the exposures. Adjusted Cox proportional hazards methods modeled VTE events risk. Of the cohort, 2.6% of women had pre-pregnancy hypertension, 5.8% had HDP, 2.8% had both pre-pregnancy hypertension and HDP (both conditions), and 88.8% had neither condition. The risk of incident VTE events within one year of delivery was higher in women with HDP (hazard ratio [HR] = 1.62, 95% confidence interval [CI]: 1.15-2.29) and both conditions (HR = 2.32, 95% CI: 1.60-3.35) compared to those with neither condition as was the risk within five years for women with HDP (HR = 1.35, 95% CI: 1.13-1.60) and for women with both conditions (HR = 1.82, 95% CI: 1.50-2.20). One- and five-year risks did not differ in women with pre-pregnancy hypertension compared to women with neither condition. Compared to non-Hispanic White (NHW) women with neither condition, the incident VTE event risk was elevated within five years of delivery for NHW (HR = 1.29, 95% CI: 1.02-1.63; HR = 1.59, 95% CI: 1.16-2.17) and non-Hispanic Black (NHB; HR = 1.51, 95% CI: 1.16-2.96; HR = 2.08, 95% CI: 1.62-2.66) women with HDP and with both conditions, respectively, and for NHB women with pre-pregnancy hypertension (HR = 1.50, 95% CI: 1.09-2.07). VTE event risk was highest in women with HDP, and the event rates were higher in NHB women than in NHW women in the same exposure group.


Subject(s)
Hypertension, Pregnancy-Induced , Prehypertension , Venous Thromboembolism , Venous Thrombosis , Pregnancy , Female , Humans , Venous Thromboembolism/epidemiology , Hypertension, Pregnancy-Induced/epidemiology , Retrospective Studies , Birth Certificates
5.
Environ Res ; 242: 117719, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-37993052

ABSTRACT

BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder with few risk factors identified and no known cure. Gene-environment interaction is hypothesized especially for sporadic ALS cases (90-95%) which are of unknown etiology. We aimed to investigate risk factors for ALS including exposure to ambient air toxics. METHODS: This population-based case-control study included 267 ALS cases (from the United States [U.S.] Centers for Disease Control and Prevention/Agency for Toxic Substances and Disease Registry National ALS Registry and Biorepository) and 267 age, sex, and county-matched controls identified via a commercial database. Exposure assessment for 34 ambient air toxicants was performed by assigning census tract-level U.S. Environmental Protection Agency (EPA) 2011 National Air Toxics Assessment (NATA) data to participants' residential ZIP codes. Conditional logistic regression was used to compute adjusted odds ratios (aORs) and 95% confidence intervals (CIs) for individual compounds, chemical classes, and overall exposure. Sensitivity analyses using both conditional logistic regression and Bayesian grouped weighted quartile sum (GWQS) models were performed to assess the integrity of findings. RESULTS: Using the 2011 NATA, the highest exposure quartile (Q4) compared to the lowest (Q1) of vinyl chloride (aOR = 6.00, 95% CI: 1.87-19.25), 2,4-dinitrotoluene (aOR = 5.45, 95% CI: 1.53-19.36), cyanide (aOR = 4.34, 95% CI: 1.52-12.43), cadmium (aOR = 3.30, 95% CI: 1.11-9.77), and carbon disulfide (aOR = 2.98, 95% CI: 1.00-8.91) was associated with increased odds of ALS. Residential air selenium showed an inverse association with ALS (second quartile [Q2] vs. Q1: aOR = 0.38, 95% CI: 0.18-0.79). Additionally, residential exposure to organic/chlorinated solvents (Q4 vs Q1: aOR = 2.62, 95% CI: 1.003-6.85) was associated with ALS. CONCLUSIONS: Our findings using the 2011 NATA linked by census tract to residential area provide evidence of increased ALS risk in cases compared to controls for 2,4-dinitrotoluene, vinyl chloride, cyanide, and the organic/chlorinated solvents class. This underscores the importance of ongoing surveillance of potential exposures for at-risk populations.


Subject(s)
Amyotrophic Lateral Sclerosis , Dinitrobenzenes , Vinyl Chloride , Humans , United States/epidemiology , Case-Control Studies , Amyotrophic Lateral Sclerosis/chemically induced , Amyotrophic Lateral Sclerosis/epidemiology , Bayes Theorem , Risk Factors , Solvents , Cyanides
6.
Mil Med ; 189(3-4): e766-e772, 2024 Feb 27.
Article in English | MEDLINE | ID: mdl-37738176

ABSTRACT

INTRODUCTION: Narcissism has been studied for its role in leadership using various versions of the Narcissistic Personality Inventory (NPI). Narcissism is described as having a "dark and negative" side as well as a "positive or bright" side. The bright side of narcissism, in particular, has been studied for its role in leadership. In studies among military personnel in Finland and Hungary, the NPI has been associated with positive leadership traits. We assessed if measures of narcissistic personality were predictive of entrance to and graduation from the Army Ranger Course among United States (U.S.) Army personnel. MATERIALS AND METHODS: We included the NPI as one of the measures in the Ranger Resilience and Improved Performance on Phospholipid-bound Omega-3's (RRIPP-3) study. RRIPP-3 was a double-blind, placebo-controlled dietary supplement intervention trial at Fort Benning, GA, that enrolled 555 officers when they entered the U.S. Army Infantry Basic Officer Leadership Course (IBOLC) with the intention to complete the U.S. Ranger School. RRIPP-3 volunteer participants consumed eight dietary supplements daily containing 2.3 g of omega-3 (krill oil) or macadamia nut oil (control) over a 20-week period. Blood spot samples were collected to monitor intake compliance. Cognitive functioning, resilience, and mood were assessed at approximately 14 and 16 weeks. Dietary intake was also assessed. The 40-item, forced-choice NPI was included to assess if three factors of narcissism: Leadership/Authority, Grandiose/Exhibitionism, and Entitlement/Exploitativeness measures of narcissistic personality were associated with entrance to and graduation from the Army Ranger Course. RESULTS: Of the 555 soldiers enrolled in RRIPP-3, there were no statistically significant differences in the total NPI scores comparing U.S. Army IBOLC officers who enrolled (n = 225) versus did not enroll (n = 330, p = .649) or graduated (n = 95; versus did not graduate [n = 460, p = .451]) from the Ranger Course. None of the three-factor NPI subscales differed statistically comparing either enrollment in (p = .442, .510, and .589, respectively) or graduation from the Ranger Course (p = .814, .508, and .813, respectively). CONCLUSIONS: Although narcissism has been positively associated with military trainee success in other countries, we did not find an association between narcissism and trainee success among U.S. Army trainees, and accordingly the level of narcissism did not predict trainee success or failure.


Subject(s)
Military Personnel , Humans , Leadership , Narcissism , Personality Disorders/psychology , Personality Inventory , United States , Double-Blind Method
7.
Front Cardiovasc Med ; 10: 1172828, 2023.
Article in English | MEDLINE | ID: mdl-37288258

ABSTRACT

Introduction: Although studies have demonstrated a J-shaped association between parity and cardiovascular disease (CVD), the association with arterial stiffness is not fully understood. Methods: We examined the association between parity and carotid-femoral pulse wave velocity (cfPWV), a measure of central arterial stiffness. We conducted a longitudinal analysis of 1220 women (mean age 73.7 years) who attended the Atherosclerosis Risk in Communities Study visit 5 (2011-2013). At visit 2 (1990-1992), women self-reported parity (number of prior live births), which we categorized as: 0 (never pregnant or pregnant with no live births); 1-2 (referent); 3-4; and 5+ live births. Technicians measured cfPWV at visit 5 (2011-2013) and visit 6 or 7 (2016-2019). Multivariable linear regression modeled the associations of parity with visit 5 cfPWV and cfPWV change between visit 5 and 6/7 adjusted for demographics and potential confounding factors. Results: Participants reported 0 (7.7%), 1-2 (38.7%), 3-4 (40.0%), or 5+ (13.6%) prior live births. In adjusted analyses, women with 5+ live births had a higher visit 5 cfPWV (ß=50.6 cm/s, 95% confidence interval: 3.6, 97.7 cm/s) than those with 1-2 live births. No statistically significant associations were observed for other parity groups with visit 5 cfPWV or with cfPWV change. Discussion: In later life, women with 5+ live births had higher arterial stiffness than those with 1-2 live births, but cfPWV change did not differ by parity, suggesting women with 5+ live births should be targeted for early primary prevention of CVD given their higher arterial stiffness at later-life.

8.
J Clin Med ; 12(4)2023 Feb 08.
Article in English | MEDLINE | ID: mdl-36835898

ABSTRACT

Human papillomavirus (HPV) infections are linked to at least six different types of cancer. The Medical University of South Carolina (MUSC) Hollings Cancer Center (HCC) and Department of Pediatrics leaders identified suboptimal rates of HPV vaccinations in rural and medically underserved communities in South Carolina (SC). To address this major public health problem in SC, they received funding from the HealthyMe/HealthySC (HMHSC) program and HCC to create a statewide community engagement-focused HPV Vaccination Van Program in October 2021. The Program provides HPV vaccinations and other childhood immunizations in school districts and HMHSC health clinics throughout SC, focusing on children aged 9-18 who are eligible for the U.S. Centers for Disease Control and Prevention's Vaccines for Children Program. As of 14 December 2022, the Program administered vaccinations in 16 counties of SC to 552 participants, 243 of whom received HPV vaccinations and were predominantly female (57.2%), aged 4-18 (95.9%), and self-identified as White (44.0%), Black (33.2%), or Hispanic/Latino (15.1%). Most had Medicaid (53.1%)/no insurance coverage (25.1%). The Program is expected to expand as the Program's relationship with SC's school districts grows. The Program provides a model for delivering mobile HPV vaccinations to rural children, thus reducing their cancer risk.

9.
Environ Res ; 216(Pt 1): 114510, 2023 01 01.
Article in English | MEDLINE | ID: mdl-36220441

ABSTRACT

BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder with no cure. Although the etiology of sporadic ALS is largely unknown, environmental exposures may affect ALS risk. OBJECTIVE: We investigated relationships between exposure to long-term ambient particulate matter (PM) and gaseous air pollution (AP) and ALS mortality. METHODS: Within the Women's Health Initiative (WHI) cohort of 161,808 postmenopausal women aged 50-79 years at baseline (1993-1998), we performed a nested case-control study of 256 ALS deaths and 2486 matched controls with emphasis on PM constituents (PM2.5, PM10, and coarse PM [PM10-2.5]) and gaseous pollutants (NOx, NO2, SO2, and ozone). Time-varying AP exposures estimates were averaged 5, 7.5, and 10 years prior to ALS death using both a GIS-based spatiotemporal generalized additive mixed model and ordinary kriging (empirical and multiple imputation, MI). Conditional logistic regression was used to estimate the relative risk of ALS death. RESULTS: In general, PM2.5 and PM10-related risks were not significantly elevated using either method. However, for PM10-2.5, odds ratios (ORs) were >1.0 for both methods at all time periods using MI and empirical data for PM10-2.5 (coarse) except for 5 and 7.5 years using the kriging method with covariate adjustment. CONCLUSION: This investigation adds to the body of information on long-term ambient AP exposure and ALS mortality. Specifically, the 2019 US Environmental Protection Agency (EPA) Integrated Science Assessment summarized the neurotoxic effects of PM2.5, PM10, and PM10-2.5. The conclusion was that evidence of an effect of coarse PM is suggestive but the data is presently not sufficient to infer a causal relationship. Further research on AP and ALS is warranted. As time from symptom onset to death in ALS is ∼2-4 years, earlier AP measures may also be of interest to ALS development. This is the first study of ALS and AP in postmenopausal women controlling for individual-level confounders.


Subject(s)
Air Pollutants , Air Pollution , Amyotrophic Lateral Sclerosis , Female , Humans , Amyotrophic Lateral Sclerosis/epidemiology , Air Pollutants/toxicity , Air Pollutants/analysis , Case-Control Studies , Air Pollution/adverse effects , Air Pollution/analysis , Particulate Matter/toxicity , Particulate Matter/analysis , Environmental Exposure/adverse effects , Environmental Exposure/analysis , Women's Health
10.
J Cancer Educ ; 38(1): 85-95, 2023 02.
Article in English | MEDLINE | ID: mdl-34655025

ABSTRACT

The annual National Conference on Health Disparities (NCHD) was launched in 2000. It unites health professionals, researchers, community leaders, and government officials, and is a catalyzing force in developing policies, research interventions, and programs that address prevention, social determinants, health disparities, and health equity. The NCHD Student Research Forum (SRF) was established in 2011 at the Medical University of South Carolina to build high-quality biomedical research presentation capacity in primarily underrepresented undergraduate and graduate/professional students. This paper describes the unique research training and professional development aspects of the NCHD SRF. These include guidance in abstract development, a webinar on presentation techniques and methods, a vibrant student-centric conference, and professional development workshops on finding a mentor and locating scholarship/fellowship funding, networking, and strategies for handling ethical issues in research with mentors. Between 2011 and 2018, 400 undergraduate and graduate/professional students participated in the NCHD SRF. Most students were women (80.5%). Approximately half were African American or black (52.3%), 18.0% were white, and 21.3% were of Hispanic/Latinx ethnicity. The NCHD SRF is unique in several ways. First, it provides detailed instructions on developing a scientific abstract, including content area examples. Second, it establishes a mandatory pre-conference training webinar demonstrating how to prepare a scientific poster. Third, it works with the research mentors, faculty advisors, department chairs, and deans to help identify potential sources of travel funding for students with accepted abstracts. These features make the NCHD SRF different from many other conferences focused on students' scientific presentations.


Subject(s)
Biomedical Research , Students , Humans , Female , Male , Mentors , Biomedical Research/education , Ethnicity , Faculty
11.
Hypertension ; 79(4): 844-854, 2022 04.
Article in English | MEDLINE | ID: mdl-35209727

ABSTRACT

BACKGROUND: Maternal morbidity and mortality are related to prepregnancy hypertensive disease and hypertensive disorders of pregnancy (HDP) including preeclampsia (41.1% of HDP), eclampsia (1.3% of HDP), and gestational hypertension (39.9% of HDP). Less information is available on the risk of maternal kidney disease and potential racial/ethnic differences following a hypertensive condition during pregnancy. Our objective was to examine the relationships between HDP and prepregnancy hypertension with maternal incident kidney disease subsequent to delivery (up to 3, 5, and 14 years) with consideration of racial/ethnic differences. METHODS: In a retrospective cohort study, 391 838 women 12 to 49 years of age had a live birth in South Carolina between 2004 and 2016; 35.1% non-Hispanic Black (NHB) and 64.9% non-Hispanic White (NHW). Hospitalization, emergency department, and birth certificate data defined prepregnancy hypertension and HDP. Hospitalization and death certificate data identified incident kidney disease. RESULTS: 317 006 (80.8%) women experienced neither condition, 1473 (0.4%) had prepregnancy hypertension, 64 050 (16.3%) had HDP, and 9662 (2.5%) had both conditions (prepregnancy hypertension with superimposed HDP, ie, preeclampsia). Five years after delivery, incident kidney disease risk was increased for NHB and NHW women with HDP (NHB: hazard ratio, 2.30 [95% CI, 1.94-2.73]; NHW: hazard ratio, 1.97 [95% CI, 1.64-2.37]) and with both conditions (NHB: hazard ratio, 3.88 [95% CI, 3.05-4.93]; NHW: hazard ratio, 1.86 [95% CI, 1.20-2.87]) compared with counterparts with neither condition after adjustment (P value for race/ethnicity interaction=0.003). CONCLUSIONS: Increased kidney disease risk 5 years after delivery was observed for women with HDP and with both compared with neither condition, with associated risk higher in NHB than NHW women.


Subject(s)
Hypertension, Pregnancy-Induced , Kidney Diseases , Pre-Eclampsia , Ethnicity , Female , Humans , Hypertension, Pregnancy-Induced/epidemiology , Male , Pre-Eclampsia/epidemiology , Pregnancy , Retrospective Studies
12.
J Am Heart Assoc ; 10(17): e021616, 2021 09 07.
Article in English | MEDLINE | ID: mdl-34431312

ABSTRACT

Background Hypertensive disorders of pregnancy (HDP) and pre-pregnancy hypertension are associated with increased morbidity and mortality for the mother. Our aim was to investigate the relationships between HDP and pre-pregnancy hypertension with maternal heart failure (HF) within 1 and 5 years of delivery and to examine racial/ethnic differences. Methods and Results We conducted a retrospective cohort study in South Carolina (2004-2016) involving 425 649 women aged 12 to 49 years (58.9% non-Hispanic White [NHW], 31.5% non-Hispanic Black [NHB], 9.6% Hispanic) with a live, singleton birth. Incident HF was defined by hospital/emergency department visit and death certificate data. Pre-pregnancy hypertension and HDP (preeclampsia, eclampsia, or gestational hypertension) were based on hospitalization/emergency department visit and birth certificate data (i.e., gestational hypertension for HDP). The 425 649 women had pre-pregnancy hypertension without superimposed HDP (pre-pregnancy hypertension alone; 0.4%), HDP alone (15.7%), pre-pregnancy hypertension with superimposed HDP (both conditions; 2.2%), or neither condition in any pregnancy (81.7%). Incident HF event rates per 1000 person-years were higher in NHB than NHW women with HDP (HDP: 2.28 versus 0.96; both conditions: 4.30 versus 1.22, respectively). After adjustment, compared with women with neither condition, incident HF risk within 5 years of delivery was increased for women with pre-pregnancy hypertension (HR,2.55, 95% CI: 1.31-4.95), HDP (HR,4.20, 95% CI: 3.66-4.81), and both conditions (HR,5.25, 95% CI: 4.24-6.50). Conclusions Women with HDP and pre-pregnancy hypertension were at higher HF risk (highest for superimposed preeclampsia) within 5 years of delivery. NHB women with HDP had higher HF risk than NHW women, regardless of pre-pregnancy hypertension.


Subject(s)
Eclampsia , Heart Failure , Hypertension, Pregnancy-Induced , Pre-Eclampsia , Prehypertension , Adolescent , Adult , Black People , Child , Eclampsia/epidemiology , Female , Heart Failure/epidemiology , Hispanic or Latino , Humans , Hypertension, Pregnancy-Induced/diagnosis , Hypertension, Pregnancy-Induced/epidemiology , Middle Aged , Pre-Eclampsia/epidemiology , Pregnancy , Prehypertension/epidemiology , Retrospective Studies , Risk Factors , White People , Young Adult
13.
Nutrients ; 13(6)2021 May 29.
Article in English | MEDLINE | ID: mdl-34072293

ABSTRACT

Studies have assessed omega-3 fatty acids and cognitive decline among older adults and cognitive development among children, although less is known about cognitive or neurological effects among young adults. We examined whether omega-3 supplementation from krill oil could improve cognition and resilience among young military officers compared to a control. This double-blind, placebo-controlled trial enrolled 555 officers (mean age 23.4 ± 2.8, 98.6% male) entering the United States (US) Army Infantry Basic Officer Leaders Course (IBOLC) with the intention to complete the US Ranger Course. Volunteer participants consumed eight dietary supplements daily of krill oil containing 2.3 g omega-3 or control (macadamia nut oil) over an approximate 20-week period. Cognitive functioning, resilience, and mood were assessed during a well-rested period at approximately 14 weeks and after a battlefield simulation at 16 weeks. Blood spot samples were collected to monitor compliance and dietary intake was assessed. All hypotheses were tested using both 'Intention to Treat' (ITT) and 'As Per Protocol' (APP) approaches. Of the 555 randomized individuals, 245 (44.1%) completed the study. No statistically significant group-by-time interactions indicating treatment effect were found on any outcomes. Poor compliance was indicated by lower than expected omega-3 elevations in the treatment group, and may have contributed to a failure to detect a response.


Subject(s)
Cognition/drug effects , Cognitive Dysfunction/prevention & control , Dietary Supplements , Fatty Acids, Omega-3/pharmacology , Military Personnel/statistics & numerical data , Resilience, Psychological , Adult , Double-Blind Method , Humans , Male , Neuropsychological Tests/statistics & numerical data , Phospholipids , United States , Young Adult
14.
Article in English | MEDLINE | ID: mdl-33860698

ABSTRACT

Objective: In 2010, the United States Agency for Toxic Substances and Disease Registry (ATSDR) created the National ALS Registry (Registry) to examine the epidemiology of ALS and potential risk factors. We are currently recruiting population-based controls for an epidemiologic case-control study to examine ALS environmental risk factors using this Registry. To date, we have recruited 181 non-diseased, population-based controls for comparison to Registry cases (n = 280). Here we report our recruitment methods for controls and the associated response rates and costs. Methods: Eligible ALS cases had complete risk factor survey data, DNA analysis, and blood concentrations of persistent organic pollutants (POPs). Age, sex, and county-matched controls were identified from commercial/consumer databases using a targeted landline phone sample. Eligible controls were consented, surveyed, and mailed the POPs' blood analysis consent form. Once consented, phlebotomy was scheduled. Results: We mailed 3760 recruitment letters for 181 potential case-matches across 42 states between 9/2018 and 3/2020. After making phone contact and determining eligibility, 146 controls agreed to participate (response rate = 11.4%, cooperation rate = 22.8%). To date, 127 controls completed the survey and bloodwork. Though controls were matched to cases on age, sex, and county, unmatched characteristics (e.g. smoking) did not differ statistically. Interviewing and incentive costs are estimated at $211.85 per complete participation. Conclusions: Recruiting matched population-based controls for comparison to cases from the Registry for a study involving completion of a detailed survey and blood specimen provision is relatively feasible and cost effective. This recruitment method could be useful for case-control studies of other rare disorders.


Subject(s)
Amyotrophic Lateral Sclerosis , Amyotrophic Lateral Sclerosis/epidemiology , Case-Control Studies , Databases, Factual , Humans , Patient Selection , Registries , United States/epidemiology
15.
J Am Heart Assoc ; 10(5): e018155, 2021 02.
Article in English | MEDLINE | ID: mdl-33619981

ABSTRACT

Background Pre-pregnancy hypertension and hypertensive disorders of pregnancy (HDP; preeclampsia, eclampsia, gestational hypertension) are major health risks for maternal morbidity and mortality. However, it is unknown if racial/ethnic differences exist. We aimed to determine the impact of HDP and pre-pregnancy hypertension on maternal coronary heart disease, stroke, and mortality risk ≤1, 3, and 5 years post-delivery and by race/ethnicity ≤5 years. Methods and Results This retrospective cohort study included women aged 12 to 49 years with a live, singleton birth between 2004 to 2016 (n=254 491 non-Hispanic White; n=137 784 non-Hispanic Black; n=41 155 Hispanic). Birth and death certificates and International Classification of Diseases, Ninth and Tenth Revision, Clinical Modification (ICD-9-CM and ICD-10-CM) diagnosis codes in hospitalization/emergency department visit data defined HDP, pre-pregnancy hypertension, incident coronary heart disease and stroke, and all-cause mortality. During at least 1 pregnancy of the 433 430 women, 2.3% had pre-pregnancy hypertension with superimposed HDP, 15.7% had no pre-pregnancy hypertension with HDP, and 0.4% had pre-pregnancy hypertension without superimposed HDP, whereas 81.6% had neither condition. Maternal deaths from coronary heart disease, stroke, and all causes totaled 2136. Within 5 years of delivery, pre-pregnancy hypertension, and HDP were associated with all-cause mortality (hazard ratio [HR], 2.21; 95% CI, 1.61-3.03), incident coronary heart disease (HR, 3.79; 95% CI, 3.09-4.65), and incident stroke (HR, 3.10; 95% CI, 2.09-4.60). HDP alone was related to all outcomes. Race/ethnic differences were observed for non-Hispanic Black and non-Hispanic White women, respectively, in the associations of pre-pregnancy hypertension and HDP with all-cause mortality within 5 years of delivery (HR, 2.34 [95% CI, 1.58-3.47]; HR, 2.11 [95% CI, 1.23-3.65]; P interaction=0.001). Conclusions Maternal cardiovascular outcomes including mortality were increased ≤5 years post-delivery in HDP, pre-pregnancy hypertension, or pre-pregnancy hypertension with superimposed HDP. The race/ethnic interaction for all-cause mortality ≤5 years of delivery warrants further research.


Subject(s)
Blood Pressure/physiology , Coronary Artery Disease/etiology , Hypertension, Pregnancy-Induced/mortality , Hypertension/complications , Stroke/etiology , Adolescent , Adult , Cause of Death/trends , Child , Coronary Artery Disease/mortality , Female , Follow-Up Studies , Humans , Hypertension/mortality , Hypertension/physiopathology , Hypertension, Pregnancy-Induced/physiopathology , Infant, Newborn , Male , Maternal Mortality/trends , Middle Aged , Pregnancy , Pregnancy Outcome , Retrospective Studies , Stroke/mortality , Survival Rate/trends , Time Factors , United States/epidemiology , Young Adult
16.
Int J STD AIDS ; 32(7): 629-637, 2021 06.
Article in English | MEDLINE | ID: mdl-33554745

ABSTRACT

INTRODUCTION: Understanding and following HIV self-testing (HIVST) instructions is a critical step in the use of HIVST kits. We analyzed data on pregnant women and their partners' self-assessment on the usability of kits delivered by their pregnant women. METHODS: Quantitative data were collected on 399 pregnant women and 238 male partners enrolled in the intervention arm of a large cluster-randomized HIVST trial. Each pregnant woman received HIVST demonstrations, detailed pictorial instructions on how to use OraQuick HIVST kits, and two kits; for herself and her male partner. Follow-up was at one month (baseline for male partners) and 3 months. Descriptive statistics were conducted to compare understanding and following of HIVST instructions by age and education level. RESULTS: The proportion of those who understood HIVST instructions was almost the same (98%) for women and their partners, although partners (26.5%) were nearly twice as likely than women (16.0%) to report needing pretest counseling (Odds ratio [OR] = 1.9, 95% CI: 1.27-2.79). Partners' understanding of the HIVST instructions did not vary by education level, but 4.4% of women with primary education reported difficulty in understanding HIVST instructions compared with 0.5% and 0% of those with secondary and university education, respectively (p = 0.05). However, 5.6% of women aged 30-68 years and 3.3% of partners aged 20-24 years found it more difficult to understand the HIVST instructions. CONCLUSION: Both pregnant women and their male partners were correctly able to perform an HIVST without or (with minimal) support suggesting that this mode of delivery will help the national program reach more men. Because more male partners than women required HIVST pretest counseling support, male-targeted HIVST promotional messages may be needed to increase men's self-efficacy to perform HIVST unsupported.


Subject(s)
HIV Infections , Pregnant Women , Cross-Sectional Studies , Female , HIV Infections/diagnosis , HIV Infections/epidemiology , Humans , Male , Mass Screening , Pregnancy , Sexual Partners , Uganda
17.
Front Reprod Health ; 3: 700850, 2021.
Article in English | MEDLINE | ID: mdl-36304056

ABSTRACT

Introduction: Learning that a couple has HIV-discordant results can create tensions in the relationship including separation. We explored the coping mechanisms of HIV-discordant, heterosexual couples enrolled in an HIV self-testing (HIVST) intervention trial in Central Uganda. Materials and Methods: This qualitative study was nested within a pilot HIVST intervention trial targeting pregnant women and their male partners in central Uganda. In-depth interviews were conducted with 18 individuals from 13 HIV-discordant couples between July and September 2018; 18 months after the end of the main trial. Data were collected on the couples' initial reactions after learning about their HIV-discordant status, mechanisms adopted by couples to cope with HIV-discordance, and suggestions on how couples in similar situations can be supported. Interviews were transcribed verbatim and analysed manually following a thematic framework approach. Findings: Of the 13 HIV-discordant couples, the female partner was HIV-positive (M-F+) in seven, while the male partner was HIV-positive (F-M+) in six. The mean (±SD) age of the participants was 32.6 (±6.4) years and participants had stayed together for an average of 5.5 (±3.6) years. Fourteen participants from nine couples already knew about their HIV-discordant status by the time they participated in the HIVST trial. After learning about their HIV-discordant status, most individuals (15) thought of abandoning their relationship; three (3) thought of committing suicide. To cope with HIV-discordance, some couples reported that they sought professional counselling support from healthcare providers, and this was particularly true for couples that were already aware of their HIV-discordant status by the time they participated in the HIVST trial. However, new couples that learnt about their HIV-discordant status after participating in the trial reported that they sought psycho-social support from friends or relatives. In the majority of cases, couples reported that they reduced the frequency of sex or abstained from sex. Some couples temporarily separated from their partners, while a few others resorted to using condoms to reduce HIV infection risk. Conclusion: Couples used a variety of approaches to cope with HIV-discordance. Study findings underscore the importance of ongoing professional counselling and psycho-social support in helping couples to cope with HIV-discordance.

18.
Nutrients ; 12(9)2020 Aug 24.
Article in English | MEDLINE | ID: mdl-32847041

ABSTRACT

Studies of relationships between eating frequency and/or timing and energy intake have not examined associations with low-calorie sweeteners (LCS). We assessed the frequency of eating behavior related to LCS consumption emphasizing timing, calorie intake, and body mass index (BMI) among United States (US) adults aged ≥19 years. Using the National Health and Nutrition Examination Survey (NHANES) 2007-2016, we defined eating episodes as food and/or beverage intake within 15 min of one another over the first 24-h dietary recall. We coded items ingested during episodes (n = 136,938) and assessed LCS presence using US Department of Agriculture (USDA) food files. Episode analysis found intakes of foods only (27.4%), beverages only (29.5%), and foods with beverages (43.0%). LCS items were consumed without concurrent calories from other sources in fewer than 2.7% of all episodes. Within participants having normal weight (29.4%), overweight (33.6%) and obese (37.1%) BMIs, LCS consumers (35.2% overall) evidenced: more episodes/day; and fewer: calories, carbohydrates, fats, and protein per episode. Per person, those consuming LCS had lower total calories and higher fiber intake per day. LCS consumption was associated with higher BMI. Number of eating episodes/day and longer hours when eating episodes occurred were also consistently associated with higher BMI. Consuming LCS did not modify these relationships. These results did not show that LCS consumption was associated with increased caloric intake from other dietary sources.


Subject(s)
Body Mass Index , Diet/methods , Energy Intake , Feeding Behavior , Nutrition Surveys/methods , Sweetening Agents/administration & dosage , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Nutrition Surveys/statistics & numerical data , United States , Young Adult
19.
Adv Cancer Res ; 146: 115-137, 2020.
Article in English | MEDLINE | ID: mdl-32241386

ABSTRACT

Human papillomavirus (HPV) infection is the primary risk factor for cervical cancer. While the HPV vaccine significantly reduces the risk of HPV infection and subsequent cervical cancer diagnosis, underuse is linked to lack of knowledge of its effectiveness in preventing cervical cancer. The purpose of this study was to evaluate a cancer educational intervention (titled "MOVENUP") to improve knowledge of cervical cancer, HPV, and the HPV vaccine among predominantly African American communities in South Carolina. The MOVENUP cancer educational intervention was conducted among participants residing in nine South Carolina counties who were recruited by community partners. The 4.5-h MOVENUP cancer educational intervention included a 30-min module on cervical cancer, HPV, and HPV vaccination. A six-item investigator-developed instrument was used to evaluate pre- and post-intervention changes in knowledge related to these content areas. Ninety-three percent of the 276 participants were African American. Most participants reporting age and gender were 50+ years (73%) and female (91%). Nearly half of participants (46%) reported an annual household income <$40,000 and 49% had not graduated from college. Statistically significant changes were observed at post-test for four of six items on the knowledge scale (P<0.05), as compared to pre-test scores. For the two items on the scale in which statistically significant changes were not observed, this was due primarily due to a baseline ceiling effect.


Subject(s)
Early Intervention, Educational/methods , Ethnicity/psychology , Health Knowledge, Attitudes, Practice , Papillomavirus Infections/prevention & control , Papillomavirus Vaccines/therapeutic use , Uterine Cervical Neoplasms/prevention & control , Vaccination/psychology , Female , Health Education , Humans , Papillomaviridae/isolation & purification , Papillomavirus Infections/complications , Papillomavirus Infections/virology , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/virology
20.
Adv Cancer Res ; 146: 83-102, 2020.
Article in English | MEDLINE | ID: mdl-32241393

ABSTRACT

Higher BMI, lower rates of physical activity (PA), and hormone receptor-negative breast cancer (BC) subtype are associated with poorer BC treatment outcomes. We evaluated the prevalence of high BMI, low PA level, and BC subtype among survivors with white/European American (EA) and African American (AA) ancestry, as well as a distinct subset of AAs with Sea Island/Gullah ancestry (SI). We used the South Carolina Central Cancer Registry to identify 137 (42 EAs, 66 AAs, and 29 SIs) women diagnosed with BC and who were within 6-21 months of diagnosis. We employed linear and logistic regression to investigate associations between BMI, PA, and age at diagnosis by racial/ethnic group. Most participants (82%) were overweight/obese (P=0.46). BMI was highest in younger AAs (P=0.02). CDC PA guidelines (≥150min/week) were met by only 28% of participants. The frequency of estrogen receptor (ER)-negative BC subtype was lower in EAs and SIs than in AAs (P<0.05). This is the first study to identify differences in obesity and PA rates, and BC subtype in EAs, AAs, and SIs. BMI was higher, PA rates were lower, and frequency of ER-negative BC was higher in AAs as compared to EAs and SIs. This study highlights the need to promote lifestyle interventions among BC survivors, with the goal of reducing the likelihood of a BC recurrence. Integrating dietary and PA interventions into ongoing survivorship care is essential. Future research could evaluate potential differential immune responses linked to the frequency of triple negative BC in AAs.


Subject(s)
Body Mass Index , Breast Neoplasms/ethnology , Breast Neoplasms/psychology , Cancer Survivors/psychology , Ethnicity/psychology , Exercise , Black or African American/psychology , Breast Neoplasms/rehabilitation , Female , Humans , Receptors, Estrogen/metabolism , White People/psychology
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