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1.
Disabil Health J ; 16(4): 101509, 2023 10.
Article in English | MEDLINE | ID: mdl-37558552

ABSTRACT

BACKGROUND: Some people with disabilities are likely at increased risk of health impacts from coronavirus disease 2019 (COVID-19). OBJECTIVE: To describe parent-reported COVID-19 vaccination status of adolescents (aged 13-17 years) and parental intent to get their child vaccinated, among adolescents with versus without disability. METHODS: National Immunization Survey-Child COVID Module data from interviews conducted July 22, 2021-February 26, 2022, were analyzed to assess disability status and type and COVID-19 vaccination status for adolescents (n = 12,445). Prevalence estimates with 95% confidence intervals were calculated; T-tests were conducted. RESULTS: A lower percentage of adolescents with disability received ≥1 dose of COVID-19 vaccine compared to adolescents without disability (52.5% vs. 58.6%), [those with cognition (50.8%) or not performing errands independently (49.5%) disabilities were significantly lower]; and a higher percentage of parents reported intent to definitely vaccinate (9.9% vs. 6.5%) and definitely not vaccinate (14.9% vs. 11.8%) their adolescent. Among the unvaccinated adolescents, parents of those with disability were more likely to report difficulty getting their child vaccinated (19.1% vs. 12.9%), inconvenient vaccination-site operating hours (7.6% vs. 3.9%), difficulty knowing where to get their child vaccinated (7.2% vs. 2.7%), and difficulty getting to vaccination sites (6.0% vs. 3.0%), than parents of those without disability. CONCLUSIONS: Adolescents with disability had lower vaccination coverage compared to adolescents without disability. Parents of adolescents with disability reported higher intent to get their adolescents vaccinated, but among unvaccinated adolescents with disability, parents reported greater difficulty in accessing COVID-19 vaccines. Findings highlight the need for prioritized outreach to increase COVID-19 vaccination for this population.


Subject(s)
COVID-19 , Disabled Persons , Adolescent , Humans , COVID-19 Vaccines , Vaccination Coverage , COVID-19/prevention & control , Vaccination , Immunization , Parents
2.
Am J Health Promot ; 37(7): 894-904, 2023 09.
Article in English | MEDLINE | ID: mdl-36880149

ABSTRACT

PURPOSE: We assessed an educational intervention to reduce the number of emergency department (ED) and inpatient stays for cardiovascular diagnoses, among South Carolina adult Medicaid Members with intellectual and developmental disability and hypertension (Members). DESIGN: This Randomized Controlled Trial (RCT) included Members or the person who helped them with their medications (Helpers). Participants, who included Members and/or their Helpers, were randomly assigned to an Intervention or Control group. SETTING: South Carolina Department of Health and Human Services, which administers Medicaid, identified eligible Members. SAMPLE: 412 Medicaid Members - 214 Intervention (54 Members participating directly; 160 Helpers participating in lieu of Members) who received the messages about hypertension and surveys about knowledge and behavior and 198 Controls (62 Members; 136 Helpers) who only received surveys of knowledge and behavior. INTERVENTION: Educational intervention about hypertension included a flyer and monthly text or phone messages for one year. MEASURES: Input measures - characteristics of the Members; Outcome measures - hospital emergency department (ED) and inpatient visits for cardiovascular conditions. ANALYSIS: Quantile regression tested the association of Intervention/Control group status with ED and inpatient visits. We also estimated models using Zero-inflated Poisson (ZIP) models for sensitivity analysis. RESULTS: Participants in the Intervention group with highest baseline hospital use (top 20% ED; top 15% Inpatient) had significant reductions in Year 1 (.57 fewer ED and 2 fewer inpatient days) compared to the Control group. For ED visits, improvement continued in year two. CONCLUSION: The intervention reduced the frequency of cardiovascular disease-related ED visits and Inpatient days for participants in the Intervention group in the highest quantiles of hospital use, and the improvement was better for those who had a Helper.


Subject(s)
Hypertension , Intellectual Disability , United States , Humans , Adult , Length of Stay , Medicaid , Educational Status , Hypertension/therapy
3.
Disabil Health J ; 14(4): 101110, 2021 10.
Article in English | MEDLINE | ID: mdl-33962896

ABSTRACT

BACKGROUND: Evidence from previous public health emergencies indicates that adults with disabilities have higher risk for morbidity (physical and mental) and mortality than adults without disabilities. OBJECTIVE: To provide estimates of mental health indicators and stressors for US adults by disability status during April and May 2020, shortly following the emergence of the COVID-19 pandemic. METHODS: We analyzed data from Porter Novelli View 360 opt-in Internet panel survey conducted during the weeks of April 20th and May 18th, 2020 among 1004 English-speaking adults aged ≥18 years without and with disabilities (serious difficulty with hearing, vision, cognition, or mobility; any difficulty with self-care or independent living). Weighted logistic regression was used to test for significant differences between calculated prevalence estimates at the P ≤ .05 level. RESULTS: One in four adults reported any disability. Adults with any disability were significantly more likely than adults without disability to report current depressive symptoms, frequent mental distress, suicidal ideation, and COVID-19-related initiated or increased substance use (all p values < .0001). Adults with disabilities also reported significantly higher levels of stressors, such as access to health care services (p < .0001), difficulty caring for their own (or another's) chronic condition (p < .0001), emotional or physical abuse from others (p < .001), and not having enough food (p < .01). CONCLUSIONS: The disproportionately high levels of poor mental health indicators among adults with disabilities as compared to those without highlight the importance of delivering timely mental health screening and treatment/intervention during and after the COVID-19 pandemic to persons with disabilities.


Subject(s)
COVID-19 , Disabled Persons , Adolescent , Adult , Cross-Sectional Studies , Humans , Mental Health , Pandemics , SARS-CoV-2
4.
Disabil Health J ; 14(3): 101096, 2021 07.
Article in English | MEDLINE | ID: mdl-33896737

ABSTRACT

BACKGROUND: Handwashing and surface cleaning and disinfection are two hygiene behaviors promoted to prevent the spread of COVID-19. Persons with disabilities may be at increased risk for severe COVID-19 illness due to underlying medical conditions that have been associated with COVID-19. OBJECTIVE: This study aims to describe self-reported hygiene behaviors among U.S. adults with disabilities to prevent transmission of COVID-19. METHODS: Data were obtained from the March 2020 Porter Novelli ConsumerStyles survey. This study includes 6463 U.S. adults (≥18 years) who participated in the survey (58.2% response rate). Participants were asked about frequent handwashing and surface disinfection. Participants were also asked six questions to assess disability status and disability type. Prevalence estimates with 95% confidence intervals were calculated; chi-square tests were conducted. RESULTS: A total of 1295 (20.3%) of survey participants reported at least one disability and their hygiene-related behavior. Overall, 91.3% of respondents with disabilities reported frequent handwashing; only 72% reported frequent surface disinfection. Those with hearing, vision, cognition, mobility, self-care, and independent living disabilities (range: 77.9%-90.6%) were significantly less likely than those without any disability (94.0%) to report frequent handwashing. People with vision (62.2%) and independent living (66.8%) disabilities were less likely to report frequent surface disinfection than those without any disability (74.6%). CONCLUSIONS: Practices such as handwashing and disinfecting surfaces are effective for reducing and preventing the spread of COVID-19. Promotion of hygiene-related practices among people with disabilities is essential. Tailored communications and implementation of evidence-based strategies are needed to address hygiene-related behaviors among the subgroups of people with disabilities most affected.


Subject(s)
COVID-19 , Disabled Persons , Adult , Disinfection , Hand Disinfection , Humans , SARS-CoV-2 , Self Report
5.
Emerg Infect Dis ; 27(5): 1477-1481, 2021.
Article in English | MEDLINE | ID: mdl-33900192

ABSTRACT

We examined disparities in cumulative incidence of severe acute respiratory syndrome coronavirus 2 by race/ethnicity, age, and sex in the United States during January 1-October 1, 2020. Hispanic/Latino and non-Hispanic Black, American Indian/Alaskan Native, and Native Hawaiian/other Pacific Islander persons had a substantially higher incidence of infection than non-Hispanic White persons.


Subject(s)
COVID-19 , Ethnicity , Hawaii , Health Status Disparities , Humans , Incidence , Racial Groups , SARS-CoV-2 , United States/epidemiology
6.
Public Health Rep ; 136(4): 441-450, 2021.
Article in English | MEDLINE | ID: mdl-33673781

ABSTRACT

OBJECTIVE: Given the growth in national disability-associated health care expenditures (DAHE) and the changes in health insurance-specific DAHE distribution, updated estimates of state-level DAHE are needed. The objective of this study was to update state-level estimates of DAHE. METHODS: We combined data from the 2013-2015 Medical Expenditure Panel Survey, 2013-2015 Behavioral Risk Factor Surveillance System, and 2014 National Health Expenditure Accounts to calculate state-level DAHE for US adults in total, per adult, and per (adult) person with disability (PWD). We adjusted expenditures to 2017 prices and assessed changes in DAHE from 2003 to 2015. RESULTS: In 2015, DAHE were $868 billion nationally (range, $1.4 billion in Wyoming to $102.8 billion in California) accounting for 36% of total health care expenditures (range, 29%-41%). From 2003 to 2015, total DAHE increased by 65% (range, 35%-125%). In 2015, DAHE per PWD were highest in the District of Columbia ($27 839) and lowest in Alabama ($12 603). From 2003 to 2015, per-PWD DAHE increased by 13% (range, -20% to 61%) and per-capita DAHE increased by 28% (range, 7%-84%). In 2015, Medicare DAHE per PWD ranged from $10 067 in Alaska to $18 768 in New Jersey. Medicaid DAHE per PWD ranged from $9825 in Nevada to $43 365 in the District of Columbia. Nonpublic-health insurer per-PWD DAHE ranged from $7641 in Arkansas to $18 796 in Alaska. CONCLUSION: DAHE are substantial and vary by state. The public sector largely supports the health care costs of people with disabilities. State policy makers and other stakeholders can use these results to inform the development of public health programs that support and provide ongoing health care to people with disabilities.


Subject(s)
Disabled Persons/statistics & numerical data , Health Expenditures/statistics & numerical data , State Government , Humans , Medicaid/economics , Medicare/economics , United States
7.
MMWR Morb Mortal Wkly Rep ; 70(5): 162-166, 2021 Feb 05.
Article in English | MEDLINE | ID: mdl-33539336

ABSTRACT

In 2019, approximately 51 million U.S. adults aged ≥18 years reported any mental illness,* and 7.7% reported a past-year substance use disorder† (1). Although reported prevalence estimates of certain mental disorders, substance use, or substance use disorders are not generally higher among racial and ethnic minority groups, persons in these groups are often less likely to receive treatment services (1). Persistent systemic social inequities and discrimination related to living conditions and work environments, which contribute to disparities in underlying medical conditions, can further compound health problems faced by members of racial and ethnic minority groups during the coronavirus disease 2019 (COVID-19) pandemic and worsen stress and associated mental health concerns (2,3). In April and May 2020, opt-in Internet panel surveys of English-speaking U.S. adults aged ≥18 years were conducted to assess the prevalence of self-reported mental health conditions and initiation of or increases in substance use to cope with stress, psychosocial stressors, and social determinants of health. Combined prevalence estimates of current depression, initiating or increasing substance use, and suicidal thoughts/ideation were 28.6%, 18.2%, and 8.4%, respectively. Hispanic/Latino (Hispanic) adults reported a higher prevalence of psychosocial stress related to not having enough food or stable housing than did adults in other racial and ethnic groups. These estimates highlight the importance of population-level and tailored interventions for mental health promotion and mental illness prevention, substance use prevention, screening and treatment services, and increased provision of resources to address social determinants of health. How Right Now (Qué Hacer Ahora) is an evidence-based and culturally appropriate communications campaign designed to promote and strengthen the emotional well-being and resiliency of populations adversely affected by COVID-19-related stress, grief, and loss (4).


Subject(s)
Anxiety/ethnology , COVID-19 , Ethnicity/psychology , Health Status Disparities , Mental Disorders/ethnology , Racial Groups/psychology , Stress, Psychological/ethnology , Adult , Ethnicity/statistics & numerical data , Female , Humans , Male , Prevalence , Racial Groups/statistics & numerical data , Substance-Related Disorders/ethnology , United States/epidemiology
8.
Med Care ; 58(9): 826-832, 2020 09.
Article in English | MEDLINE | ID: mdl-32826747

ABSTRACT

BACKGROUND: In 2003, national disability-associated health care expenditures (DAHE) were $398 billion. Updated estimates will improve our understanding of current DAHE. OBJECTIVE: The objective of this study was to estimate national DAHE for the US adult population and analyze spending by insurance and service categories and to assess changes in spending over the past decade. RESEARCH DESIGN: Data from the 2013-2015 Medical Expenditure Panel Survey were used to estimate DAHE for noninstitutionalized adults. These estimates were reconciled with National Health Expenditure Accounts (NHEA) data and adjusted to 2017 medical prices. Expenditures for institutionalized adults were added from NHEA data. MEASURES: National DAHE in total, by insurance and service categories, and percentage of total expenditures associated with disability. RESULTS: DAHE in 2015 were $868 billion (at 2017 prices), representing 36% of total national health care spending (up from 27% in 2003). DAHE per person with disability increased from $13,395 in 2003 to $17,431 in 2015, whereas nondisability per-person spending remained constant (about $6700). Public insurers paid 69% of DAHE. Medicare paid the largest portion ($324.7 billion), and Medicaid DAHE were $277.2 billion. More than half (54%) of all Medicare expenditures and 72% of all Medicaid expenditures were associated with disability. CONCLUSIONS: The share of health care expenditures associated with disability has increased substantially over the past decade. The high proportion of DAHE paid by public insurers reinforces the importance of public programs designed to improve health care for people with disabilities and emphasizes the need for evaluating programs and health services available to this vulnerable population.


Subject(s)
Disabled Persons/statistics & numerical data , Health Expenditures/statistics & numerical data , Activities of Daily Living , Adult , Age Factors , Aged , Chronic Disease , Female , Humans , Male , Medicaid/statistics & numerical data , Medicare/statistics & numerical data , Middle Aged , Physical Functional Performance , Racial Groups , Residence Characteristics , Sex Factors , Social Work/economics , Socioeconomic Factors , United States , Work Capacity Evaluation
9.
Prev Med ; 134: 106065, 2020 05.
Article in English | MEDLINE | ID: mdl-32194096

ABSTRACT

People with disabilities are at increased risk of chronic diseases, many of which physical activity can help prevent and manage. Certain environmental features can support or hinder participation in important activities like walking, particularly for people with disabilities. The purpose of this study is to examine differences in the prevalence of perceived neighborhood environmental supports and barriers for walking, by disability status, among US adults. Participants in the 2015 National Health Interview Survey Cancer Control Supplement (N = 15,280) reported their disability status (mobility disability, non-mobility disability, or no disability) and perceptions of neighborhood environmental supports (walkable roads, sidewalks, paths, trails; sidewalks on most streets; and walkable shops; transit; movies, libraries, churches; relaxing places) and barriers (traffic, crime, animals) for walking. Adjusted models conducted in 2019 included demographic characteristics. Prevalence of most supports was lower among adults with mobility or non-mobility disabilities versus no disability. For example, 54.9% and 57.5% of adults with mobility and non-mobility disabilities respectively reported sidewalks on most streets, compared to 64.1% of adults with no disability. After adjustment, significant differences remained when comparing adults with a mobility disability versus no disability for two supports (roads, sidewalks, paths, trails; relaxing places). All perceived barriers were significantly more common among adults with any disability versus no disability, regardless of adjustment. In the United States, adults with disabilities perceive fewer neighborhood environmental supports and more barriers for walking than their counterparts. Strategies that increase supports and address barriers for walking may help promote physical activity among adults with disabilities.


Subject(s)
Disabled Persons/statistics & numerical data , Environment Design , Mobility Limitation , Residence Characteristics , Walking/statistics & numerical data , Adult , Crime , Female , Humans , Male , Middle Aged , Surveys and Questionnaires , United States
10.
Disabil Health J ; 13(3): 100888, 2020 07.
Article in English | MEDLINE | ID: mdl-32061542

ABSTRACT

BACKGROUND: The Physical Activity Guidelines for Americans, second edition, recommend that all adults participate in moderate-intensity equivalent aerobic physical activity at least 150-300 min/week for substantial health benefits and muscle-strengthening activities involving all major muscle groups 2 or more days a week. The prevalence of the general population meeting the Guidelines and the types of physical activity in which they engage have been described elsewhere. Similar descriptions are lacking for individuals with mobility disability whose physical activity profiles may differ from the general population. OBJECTIVE: This study examined patterns of aerobic and muscle-strengthening physical activity among US adults with mobility disability. METHODS: We used 2017 Behavioral Risk Factor Surveillance System data from 66,635 adults with mobility disability. We estimated the percentage who engaged in any aerobic physical activity, met the aerobic and/or muscle-strengthening guidelines, and who participated in specific activities. RESULTS: Less than half (45.2%) of US adults with mobility disability reported engaging in aerobic physical activity, and 39.5% met one or both components of the physical activity guidelines. Walking was the most commonly reported activity type (34.0%). CONCLUSIONS: Walking is a common activity type among adults with mobility disability. Efforts to make walking or wheelchair rolling a safe, viable option are important to helping decrease barriers that may limit the ability of those with mobility disability to engage in walking or other physical activity types.


Subject(s)
Disabled Persons/psychology , Disabled Persons/statistics & numerical data , Exercise/physiology , Exercise/psychology , Mobility Limitation , Adolescent , Adult , Aged , Aged, 80 and over , Behavioral Risk Factor Surveillance System , Female , Humans , Male , Middle Aged , Socioeconomic Factors , United States , Young Adult
11.
Disabil Health J ; 13(1): 100834, 2020 01.
Article in English | MEDLINE | ID: mdl-31427202

ABSTRACT

BACKGROUND: In the United States, approximately 10% of adults 18-64 years are disabled. However, there is scarce literature on the associations between disability and HIV risk. OBJECTIVE: To assess disability prevalence and its associations to health and HIV risk factors among low socioeconomic status (SES) (≤high school education or ≤ poverty guidelines) urban adults. METHODS: We assessed disability prevalence from a cross-sectional sample of low SES urban heterosexually active adults at risk for HIV participating in the 2016 National HIV Behavioral Surveillance (NHBS) and calculated crude and adjusted prevalence ratios and 95% confidence intervals of disability for health and HIV risk behaviors. RESULTS: In the NHBS sample, 39.6% of participants reported any disability. Disability was associated with health care utilization and risk behaviors, even when adjusting for demographics. Participants with disabilities were more likely to have condomless sex with a casual partner and engage in exchange sex. CONCLUSIONS: Low SES urban heterosexually active adults reported high prevalence of disabilities and differences in health, health care utilization, and risk factors. Disability might contribute to sexual risk behaviors that increase the likelihood of HIV infection. Further investigations into the intersection of disability and HIV risk are needed, especially in poor communities often excluded from national assessments.


Subject(s)
Disabled Persons/statistics & numerical data , HIV Infections/epidemiology , Socioeconomic Factors , Urban Population/statistics & numerical data , Adolescent , Adult , Cities , Comorbidity , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Poverty , Prevalence , Risk Factors , United States/epidemiology , Young Adult
12.
MMWR Morb Mortal Wkly Rep ; 67(32): 882-887, 2018 Aug 17.
Article in English | MEDLINE | ID: mdl-30114005

ABSTRACT

Persons with disabilities face greater barriers to health care than do those without disabilities (1). To identify characteristics of noninstitutionalized adults with six specific disability types (hearing, vision, cognition, mobility, self-care, and independent living),* and to assess disability-specific disparities in health care access, CDC analyzed 2016 Behavioral Risk Factor Surveillance System (BRFSS) data. The prevalences of disability overall and by disability type, and access to health care by disability type, were estimated. Analyses were stratified by three age groups: 18-44 years (young adults), 45-64 years (middle-aged adults), and ≥65 years (older adults). Among young adults, cognitive disability (10.6%) was the most prevalent type. Mobility disability was most prevalent among middle-aged (18.1%) and older adults (26.9%). Generally, disability prevalences were higher among women, American Indians/Alaska Natives (AI/AN), adults with income below the federal poverty level (FPL), and persons in the South U.S. Census region. Disability-specific disparities in health care access were prevalent, particularly among young and middle-aged adults. These data might inform public health programs of the sociodemographic characteristics and disparities in health care access associated with age and specific disability types and guide efforts to improve access to care for persons with disabilities.


Subject(s)
Disabled Persons/statistics & numerical data , Healthcare Disparities/statistics & numerical data , Adolescent , Adult , Age Distribution , Aged , Behavioral Risk Factor Surveillance System , Female , Humans , Male , Middle Aged , Prevalence , Socioeconomic Factors , United States/epidemiology , Young Adult
13.
AIDS Care ; 29(7): 858-865, 2017 07.
Article in English | MEDLINE | ID: mdl-28132520

ABSTRACT

Timely linkage to HIV care (LTC) following an HIV diagnosis is especially important for pregnant women with HIV to prevent perinatal transmission and improve maternal health. However, limited data are available on LTC among U.S. pregnant women. Our analysis aimed to identify HIV diagnoses among childbearing age (CBA) women (15-44 years old) by pregnancy status and to compare LTC of HIV-infected pregnant women to HIV-infected non-pregnant women. We analyzed 2013 CDC-funded HIV testing data from 61 health departments and 151 directly funded community-based organizations among CBA women. LTC includes linkage at any time after an HIV diagnosis and within 90 days after HIV diagnosis. Pearson's chi-square was used to compare LTC of pregnant and non-pregnant women. Data were analyzed using SAS v9.3. Among the 1,379,860 HIV testing events among CBA women in 2013, 0.3% (n = 3690) were HIV-positive. Among all HIV-positive diagnoses with an available pregnancy status (n = 1987), 7%, (n = 138) were pregnant. Among women with pregnancy status data, LTC any time after an HIV-positive diagnosis was 73.2% for pregnant women and 60.7% for non-pregnant women. LTC within 90 days was 71.7% for pregnant women and 56.2% for non-pregnant women. Pregnancy was associated with LTC any time (p < 0.01) and within 90 days of diagnosis (p < 0.01). Compared with non-pregnant women, a higher proportion of pregnant women with HIV were linked to care overall, and linked within 90 days. Pregnancy appears to facilitate better LTC, but improvements are needed for women overall and pregnant women specifically.


Subject(s)
HIV Infections/diagnosis , Patient Acceptance of Health Care/statistics & numerical data , Adolescent , Adult , Centers for Disease Control and Prevention, U.S. , Female , HIV Infections/drug therapy , HIV Infections/epidemiology , Humans , Infectious Disease Transmission, Vertical , Pregnancy , Pregnancy Complications, Infectious/diagnosis , Pregnancy Complications, Infectious/drug therapy , Pregnancy Complications, Infectious/virology , Prenatal Care , United States/epidemiology , Young Adult
14.
Int J STD AIDS ; 27(10): 868-72, 2016 09.
Article in English | MEDLINE | ID: mdl-26378191

ABSTRACT

Client notification of a new HIV diagnosis is critical for timely access to treatment and reduction in behaviours associated with HIV infection. It is also an important input in HIV transmission and disease progression models. We used national, Centers for Disease Control and Prevention-funded HIV testing events data collected through the National HIV Prevention Program Monitoring and Evaluation system to update estimates of the proportion of newly identified HIV-positives notified of their status. We compared estimates from 2008 to 2010 across test technologies, settings, and HIV risk groups. In 2010, notification following a positive rapid test was 99.6% compared with 99.3% in 2008. Notification following a positive conventional test was 81.5% in 2010 compared with 80.8% in 2008. To realise the full promise of early HIV diagnosis and treatment for the prevention of additional HIV cases, efforts to ensure prompt notification following a new HIV diagnosis will be crucial.


Subject(s)
AIDS Serodiagnosis , Disease Notification , HIV Infections/diagnosis , Mass Screening/statistics & numerical data , Population Surveillance , Female , Humans , Middle Aged , United States
15.
Am J Med Genet A ; 161A(3): 438-44, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23401135

ABSTRACT

Both a lack of maternal folic acid supplementation and the presence of genetic variants that reduce enzyme activity in folate pathway genes have been linked to meiotic nondisjunction of chromosome 21; however, the findings in this area of research have been inconsistent. To better understand these inconsistencies, we asked whether maternal use of a folic acid-containing supplement before conception reduces risk for chromosome 21 nondisjunction. Using questionnaire data from the National Down Syndrome Project, a population-based case-control study, we compared the use of folic acid-containing supplements among mothers of infants with full trisomy 21 due to maternal nondisjunction (n = 702) and mothers of infants born with no major birth defects (n = 983). Using logistic regression, adjusting for maternal age, race/ethnicity, and infant age at maternal interview, we found no evidence of an association between lack of folic acid supplementation and maternal nondisjunction among all case mothers (OR = 1.16; 95% CI: 0.90-1.48). In analyses stratified by meiotic stage and maternal age (<35 or ≥35 years), we found an association among older mothers experiencing meiosis II nondisjunction errors (OR = 2.00; 95% CI: 1.08-3.71). These data suggest that lack of folic acid supplementation may be associated specifically with MII errors in the aging oocyte. If confirmed, these results could account for inconsistencies among previous studies, as each study sample may vary by maternal age structure and proportion of meiotic errors.


Subject(s)
Chromosomes, Human, Pair 21 , Down Syndrome/prevention & control , Folic Acid/administration & dosage , Nondisjunction, Genetic , Adult , Case-Control Studies , Dietary Supplements , Down Syndrome/genetics , Female , Humans , Infant , Meiosis , Preconception Care , Risk
16.
Birth Defects Res A Clin Mol Teratol ; 91(10): 885-93, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21987466

ABSTRACT

BACKGROUND: Maternal folic acid supplementation has been associated with a reduced risk for neural tube defects and may be associated with a reduced risk for congenital heart defects and other birth defects. Individuals with Down syndrome are at high risk for congenital heart defects and have been shown to have abnormal folate metabolism. METHODS: As part of the population-based case-control National Down Syndrome Project, 1011 mothers of infants with Down syndrome reported their use of supplements containing folic acid. These data were used to determine whether a lack of periconceptional maternal folic acid supplementation is associated with congenital heart defects in Down syndrome. We used logistic regression to test the relationship between maternal folic acid supplementation and the frequency of specific heart defects correcting for maternal race or ethnicity, proband sex, maternal use of alcohol and cigarettes, and maternal age at conception. RESULTS: Lack of maternal folic acid supplementation was more frequent among infants with Down syndrome and atrioventricular septal defects (odds ratio [OR], 1.69; 95% confidence interval [CI], 1.08-2.63; p = 0.011) or atrial septal defects (OR, 1.69; 95% CI, 1.11-2.58; p = 0.007) than among infants with Down syndrome and no heart defect. Preliminary evidence suggests that the patterns of association differ by race or ethnicity and sex of the proband. There was no statistically significant association with ventricular septal defects (OR, 1.26; 95% CI, 0.85-1.87; p = 0.124). CONCLUSIONS: Our results suggest that lack of maternal folic acid supplementation is associated with septal defects in infants with Down syndrome. Birth Defects Research (Part A), 2011. © 2011 Wiley-Liss, Inc.


Subject(s)
Dietary Supplements , Down Syndrome/epidemiology , Folic Acid , Heart Septal Defects, Atrial/epidemiology , Heart Septal Defects, Ventricular/epidemiology , Down Syndrome/complications , Female , Heart Septal Defects, Atrial/complications , Heart Septal Defects, Ventricular/complications , Humans , Infant , Male , Pregnancy , United States/epidemiology
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