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Accurately determining and classifying different types of skin cancers is critical for early diagnosis. In this work, we propose a novel use of deep learning for classification of benign and malignant skin lesions using dermoscopy images. We obtained 770 de-identified dermoscopy images from the University of Missouri (MU) Healthcare. We created three unique image datasets that contained the original images and images obtained after applying a hair removal algorithm. We trained three popular deep learning models, namely, ResNet50, DenseNet121, and Inception-V3. We evaluated the accuracy and the area under the curve (AUC) receiver operating characteristic (ROC) for each model and dataset. DenseNet121 achieved the best accuracy (80.52%) and AUC ROC score (0.81) on the third dataset. For this dataset, the sensitivity and specificity were 0.80 and 0.81, respectively. We also present the SHAP (SHapley Additive exPlanations) values for the predictions made by different models to understand their interpretability.
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Life expectancy at birth (hereafter, life expectancy) and longevity are established indicators of population health [...].
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Centenarios , Dieta Saludable , Anciano de 80 o más Años , Recién Nacido , Humanos , Longevidad , Estilo de Vida , Esperanza de VidaRESUMEN
The assessment of risks associated with environmental exposure to metals/metalloids requires well-established reference values for each population since it varies considerably according to distinct local/regional characteristics. However, very few studies establish baseline values for these elements (essential and toxic) in large population groups, especially in Latin American countries. This study was aimed at establishing urinary reference levels of 30 metals/metalloids: aluminum (Al), antimony (Sb), arsenic (As), barium (Ba), beryllium (Be), cadmium (Cd), cerium (Ce), cesium (Cs), chromium (Cr), cobalt (Co), copper (Cu), lanthanum (La), lead (Pb), lithium (Li), strontium (Sr), manganese (Mn), mercury (Hg), molybdenum (Mo), nickel (Ni), platinum (Pt), rubidium (Rb), selenium (Se), silver (Ag), tin (Sn), tellurium (Te), thallium (Tl), thorium (Th), tungsten (W), uranium (U) and zinc (Zn) in a Brazilian southeast adult population. This pilot study is a cross-sectional analysis conducted with the first wave of the ELSA-Brasil cohort (baseline examination). A total of 996 adults (45.5% men, N = 453, mean age: 50.5, and 54.5% women, N = 543, mean age: 50.6) were included in the study. Sample analyses were performed by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Percentiles (2.5, 10, 25, 50, 75, 95 (CI95%), and 97.5) of each element (µg/g of creatinine) in the study are presented according to sex. Moreover, differences in the mean metal/metalloid urinary levels according to age, education, smoking, and alcohol intake are also presented. Finally, median found values were compared to established values of large human biomonitoring surveys previously conducted in North America and France. This is the first comprehensive and systematic human biomonitoring study that established population reference ranges for 30 (essential and/or toxic elements) in a Brazilian population group.
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Mercurio , Metaloides , Oligoelementos , Masculino , Adulto , Femenino , Humanos , Persona de Mediana Edad , Metaloides/análisis , Estudios Longitudinales , Brasil , Estudios Transversales , Proyectos Piloto , Metales , Mercurio/análisis , Oligoelementos/análisisRESUMEN
The unprecedented COVID-19 epidemic in the United States (US) and worldwide, caused by a new type of coronavirus (SARS-CoV-2), occurred mostly because of higher-than-expected transmission speed and degree of virulence compared with previous respiratory virus outbreaks, especially earlier Coronaviruses with person-to-person transmission (e.g., MERS, SARS). The epidemic's size and duration, however, are mostly a function of failure of public health systems to prevent/control the epidemic. In the US, this failure was due to historical disinvestment in public health services, key players equivocating on decisions, and political interference in public health actions. In this communication, we present a summary of these failures, discuss root causes, and make recommendations for improvement with focus on public health decisions.
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BACKGROUND: In this study, we focused on Healthy Coping, a key principle of ADCES7 Self-Care Behaviors® (ADCES7®) that enables people with diabetes to achieve health goals for self-care. We aimed to validate Healthy Coping-related feedback messages from diabetes mobile apps against the framework based on behavioral change theories. METHODS: We searched apps using the search terms: "diabetes," "blood sugar," "glucose," and "mood" from iTunes and Google Play stores. We entered a range of values on 3 Healthy Coping domains: (1) diabetes-related measures including blood glucose, blood pressure, HbA1c, weight, (2) physical exercise/activity, and (3) mood to generate feedback messages. We used a framework by adopting validated behavioral change theory-based models to evaluate the feedback messages against 3 dimensions of timing, intention, and content (feedback purpose and feedback response). The feedback purposes in this study were categorized into 7 purposes; warning, suggestion, self-monitoring, acknowledging, reinforcement, goal setting, and behavior contract. RESULTS: We identified 1,749 apps from which 156 diabetes mobile apps were eligible and generated 473 feedback messages. The majority of generated feedback messages were related to blood sugar measurement. Only feedback messages on blood sugar under diabetes-related measures and mood domains encompassed all 7 feedback purposes under the content dimension. CONCLUSIONS: Many feedback messages neither supported Healthy Coping domains nor followed the behavioral theory-based framework. It is important that feedback messages be structured around the dimensions of the behavioral theory-based framework to promote behavior change. Furthermore, our framework had the generalizability that can be used in other clinical areas.
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Diabetes Mellitus , Aplicaciones Móviles , Humanos , Glucemia , Retroalimentación , Diabetes Mellitus/terapia , Adaptación PsicológicaRESUMEN
BACKGROUND AND AIMS: Diabetes self-management education and support (DSMES) can improve clinical and health outcomes of people with diabetes. However, DSMES has been underutilized because of many barriers. We aimed to develop a patient-centered educational aid, SEE-Diabetes (Support-Engage-Empower-Diabetes), that facilitates shared decision-making about DSMES between patient and provider during the follow-up visit. We investigated the information needs to inform the design of the SEE-Diabetes from the providers' perspective. METHODS: We conducted an online survey (N = 42) and three focus groups (N = 13) involving providers who have experience managing diabetes in older patients. Survey collected demographics and assessed knowledge of DSMES. During the subsequent focus groups, participants evaluated the Assessment and Plan section of three clinic notes of older people with diabetes. We also demonstrated the potential workflow of DSMES documentation using SEE-Diabetes during clinical practice. RESULTS: The survey showed 60% of providers were familiar with DSMES. Focus group findings showed clinic notes should convey concise information at an appropriate reading level, numbered problems, and less medical jargon to improve the readability of clinic notes. Application of SMART (Specific, Measurable, Attainable, Relevant, Time-bound) goals was suggested to deliver effective diabetes self-care information. CONCLUSIONS: Providers should consider adopting validated DSMES guidelines along with goal-setting strategies to provide patient-centered care. The research team will integrate the provider recommendations when we develop SEE-Diabetes.
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Diabetes Mellitus , Automanejo , Humanos , Anciano , Automanejo/educación , Diabetes Mellitus/terapia , Autocuidado , Grupos Focales , Atención Dirigida al PacienteRESUMEN
AIMS: This study identified the information needs of people with diabetes aged 65 and older through surveys and focus groups to inform the development of a patient-centered educational decision aid for diabetes care, SEE-Diabetes (Support-Engage-Empower-Diabetes). METHODS: We conducted survey (N = 37) and three focus groups (N = 9). The survey collected demographics, diabetes duration, insulin usage, and clinic notes accessibility through a patient portal. In focus groups, participants evaluated the Assessment and Plan section of three selected deidentified clinic notes to assess readability and helpfulness for diabetes care. RESULTS: The mean age of participants was 66 (24-82, SD = 12), and 22 were female (60%). The mean diabetes duration was 20.9 years (1-63, SD=15). Most participants (80%) read their clinical notes via patient portal. In the focus groups, the readability of clinic notes was noted as a primary concern because of medical abbreviations and poor formatting. Participants found the helpfulness of clinic notes was negatively impacted by vague or insufficient self-care information. CONCLUSIONS: We found the high use of patient portal for reading clinic notes, which offers a use case opportunity for the proposed SEE-Diabetes educational aid. Feedback about the readability and helpfulness of clinic notes will be considered during the design process.
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Diabetes Mellitus , Automanejo , Anciano , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/terapia , Femenino , Grupos Focales , Humanos , Masculino , Atención Dirigida al Paciente , Encuestas y CuestionariosRESUMEN
There is no validated framework to evaluate health information technology (HIT) for diabetes self-management education and support (DSMES). AADE7 Self-Care Behaviors is a patient-centered DSMES designed by the American Association of Diabetes Educators (AADE). We developed a codebook based on the AADE7 Self-Care Behaviors principles as an evaluation framework. In this commentary, we demonstrate the real-life applications of this codebook through three diabetes research studies. The first study analyzed features of mobile diabetes applications. The second study evaluated provider documentation patterns in electronic health records (EHRs) to deliver ongoing patient-centered DSMES. The third study analyzed feedback messages from diabetes apps. We found that this codebook, based on AADE7, can be instrumental as a framework for research, as well as real-life use in HIT for DSMES principles.
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Diabetes Mellitus , Informática Médica , Aplicaciones Móviles , Automanejo , Diabetes Mellitus/terapia , Conductas Relacionadas con la Salud , HumanosRESUMEN
ABSTRACT Objectives: to evaluate the relationship between leisure-time physical activity and functional capacity change among aged people. Methods: we analyzed data of an aged cohort looking for determinants of functional capacity at follow-up. Baseline data were collected between 2007 and 2008 - average follow-up of 3,5 years. A full multivariate linear regression model was built to evaluate functional capacity at the end of the follow-up, controlling for functional capacity at baseline, sociodemographic, health and behavioral characteristics and amount of leisure-time physical activity in the period. Results: final model showed functional capacity independently correlated with age (p<0.001), body mass (p=0.013) and the number of activities of daily living compromised at baseline (p<0.001). Functional capacity improved with increased physical activity but loss statistical significance after adjustments (p=0.384). Conclusions: functional capacity decreases with increased age, increased loss of functional capacity at baseline and increased body mass. Albeit a non-significant association, leisure-time physical activity appears as an important modifiable factor.
RESUMO Objetivos: avaliar a relação entre atividade física de lazer e mudança de capacidade funcional entre idosos. Métodos: analisamos dados de uma coorte de idosos em busca de determinantes da capacidade funcional no seguimento. Dados da linha de base foram coletados entre 2007 e 2008 - acompanhamento médio de 3,5 anos. Foi construído um modelo de regressão linear multivariado completo para avaliar a capacidade funcional ao final do seguimento, controlando pela capacidade funcional na linha de base, características sociodemográficas, de saúde e comportamentais e quantidade de atividade física no período. Resultados: o modelo final mostrou capacidade funcional independentemente correlacionada com a idade (p<0,001), massa corporal (p=0,013) e número de atividades de vida diária comprometidas na linha de base (p<0,001). Capacidade funcional melhorou com o aumento da atividade física, mas perdeu significância estatística após ajustes (p=0,384). Conclusões: capacidade funcional diminui com o aumento da idade, o aumento da perda da capacidade funcional na linha de base e o aumento da massa corporal. Embora não significativamente associada, a atividade física no lazer aparece como um importante fator modificável.
RESUMEN Objetivos: evaluar la relación entre ejercicio físico de ocio y cambio de capacidad funcional entre ancianos. Métodos: analizamos datos de una cohorte de ancianos en búsqueda de determinantes de la capacidad funcional en el seguimiento. Datos de la línea de base fueron recolectados entre 2007 y 2008 - acompañamiento mediano de 3,5 años. Fue construido un modelo de regresión linear multivariado completo para evaluar la capacidad funcional al fin del seguimiento, controlando por la capacidad funcional en la línea de base, características sociodemográficas, de salud y conductas y cantidad de ejercicio físico en el período. Resultados: el modelo final mostró capacidad funcional independientemente correlacionada con la edad (p<0,001), masa corporal (p=0,013) y número de actividades cotidianas comprometidas en la línea de base (p<0,001). Capacidad funcional mejoró con el aumento del ejercicio físico, pero perdió significación estadística después de ajustes (p=0,384). Conclusiones: capacidad funcional disminuyó con el aumento de la edad, el aumento de la perdida de la capacidad funcional en la línea de base y el aumento de la masa corporal. Aunque no significativamente relacionado, el ejercicio físico en el ocio aparece como un importante factor cambiable.
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By 21 October 2020, the coronavirus disease (COVID-19) epidemic in the United States (US) had infected 8.3 million people, resulting in 61,364 laboratory-confirmed hospitalizations and 222,157 deaths. Currently, policymakers are trying to better understand this epidemic, especially the human-to-human transmissibility of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in relation to social, populational, air travel related and environmental exposure factors. Our study used 50 US states' public health surveillance datasets (January 1-April 1, 2020) to measure associations of confirmed COVID-19 cases, hospitalizations and deaths with these variables. Using the resulting associations and multivariate regression (Negative Binomial and Poisson), predicted cases, hospitalizations and deaths were generated for each US state early in the epidemic. Factors associated with a significantly increased risk of COVID-19 disease, hospitalization and death included: population density, enplanement, Black race and increased sun exposure; in addition, COVID-19 disease and hospitalization were also associated with morning humidity. Although predictions of the number of cases, hospitalizations and deaths due to COVID-19 were not accurate for every state, those states with a combination of large number of enplanements, high population density, high proportion of Black residents, high humidity or low sun exposure may expect more rapid than expected growth in the number of COVID-19 events early in the epidemic.
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OBJECTIVES: to evaluate the relationship between leisure-time physical activity and functional capacity change among aged people. METHODS: we analyzed data of an aged cohort looking for determinants of functional capacity at follow-up. Baseline data were collected between 2007 and 2008 - average follow-up of 3,5 years. A full multivariate linear regression model was built to evaluate functional capacity at the end of the follow-up, controlling for functional capacity at baseline, sociodemographic, health and behavioral characteristics and amount of leisure-time physical activity in the period. RESULTS: final model showed functional capacity independently correlated with age (p<0.001), body mass (p=0.013) and the number of activities of daily living compromised at baseline (p<0.001). Functional capacity improved with increased physical activity but loss statistical significance after adjustments (p=0.384). CONCLUSIONS: functional capacity decreases with increased age, increased loss of functional capacity at baseline and increased body mass. Albeit a non-significant association, leisure-time physical activity appears as an important modifiable factor.
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Actividades Cotidianas , Ejercicio Físico , Anciano , Brasil , Estudios de Cohortes , Humanos , Actividad MotoraRESUMEN
BACKGROUND: Addiction to opiates and synthetic opioids poses a major threat to public health worldwide, with pharmaceutical opioids prescribed to manage pain constituting the main problem. To counteract this threat, suitable pain management strategies should be implemented in health care. Monitoring pain management seems to be feasible using telemedicine with a certain degree of resource intensity and digitization. As a communication channel for this type of monitoring, SMS appears to be a valid alternative. OBJECTIVE: The aim of this systematic literature review was to (1) provide information on the state of research regarding postoperative pain management via SMS, (2) establish a basic understanding of SMS-based pain management, and (3) provide insight into the feasibility of these management strategies. The research question was as follows: Is postoperative pain management feasible and effective utilizing SMS? METHODS: A systematic literature review was performed mainly following the PRISMA guidelines and another guide on performing a systematic literature review for information systems-related research. A search string was developed based on the objectives and research question, and eight databases were searched. RESULTS: The initial search resulted in 2083 records, which could be narrowed down by applying various exclusion criteria. Thereby, 11 articles were identified as relevant, which were accordingly analyzed and evaluated by full-text screening. In all articles, pain management interventions were performed using SMS communication between health care professionals and patients or their legal guardians. A prospective approach was predominantly chosen as the study design (91%) with the leading research objective of determining the intervention's feasibility (73%). The primary reason for sending SMS messages was to monitor patients (64%). Overall, the use of SMS improved adherence, acceptance, and satisfaction regarding postoperative pain management. With an average response rate of approximately 89.5% (SD 3.8%), the reliability of SMS as a communication and monitoring tool was further emphasized. This response rate is significantly higher than that for email interventions (66.63%, P<.001). CONCLUSIONS: This study provides a comprehensive picture of the current status on postoperative pain management by SMS. Communication via SMS was beneficial in all interventions, even preoperative. Six SMS interventions could be certified by the respective institutional review board and three were Health Insurance Portability and Accountability Act-compliant. Therefore, the results of this study could be leveraged to address the opioid epidemic. Overall, the research question could be confirmed. Future research should extend this systematic literature review regarding preoperative pain management. Based on these findings, a pre- and postoperative communication model should be developed to address the opioid epidemic effectively.
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Telemedicina , Envío de Mensajes de Texto , Humanos , Dolor Postoperatorio/tratamiento farmacológico , Reproducibilidad de los Resultados , Proyectos de Investigación , Estados UnidosRESUMEN
[This corrects the article DOI: 10.2196/14062.].
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BACKGROUND: Advances in information communication technology provide researchers with the opportunity to access and collect continuous and granular data from enrolled participants. However, recruiting study participants who are willing to disclose their health data has been challenging for researchers. These challenges can be related to socioeconomic status, the source of data, and privacy concerns about sharing health information, which affect data-sharing behaviors. OBJECTIVE: This study aimed to assess healthy non-Hispanic white mothers' attitudes in five areas: motivation to share data, concern with data use, desire to keep health information anonymous, use of patient portal and willingness to share anonymous data with researchers. METHODS: This cross-sectional study was conducted on 622 healthy non-Hispanic white mothers raising healthy children. From a Web-based survey with 51 questions, we selected 15 questions for further analysis. These questions focused on attitudes and beliefs toward data sharing, internet use, interest in future research, and sociodemographic and health questions about mothers and their children. Data analysis was performed using multivariate logistic regressions to investigate the factors that influence mothers' willingness to share their personal health data, their utilization of a patient portal, and their interests in keeping their health information anonymous. RESULTS: The results of the study showed that the majority of mothers surveyed wanted to keep their data anonymous (440/622, 70.7%) and use patient portals (394/622, 63.3%) and were willing to share their data from Web-based surveys (509/622, 81.8%) and from mobile phones (423/622, 68.0%). However, 36.0% (224/622) and 40.5% (252/622) of mothers were less willing to share their medical record data and their locations with researchers, respectively. We found that the utilization of patient portals, their attitude toward keeping data anonymous, and their willingness to share different data sources were dependent on the mothers' health care provider status, their motivation, and their privacy concerns. Mothers' concerns about the misuse of personal health information had a negative impact on their willingness to share sensitive data (ie, electronic medical record: adjusted odds ratio [aOR] 0.43, 95% CI 0.25-0.73; GPS: aOR 0.4, 95% CI 0.27-0.60). In contrast, mothers' motivation to share their data had a positive impact on disclosing their data via Web-based surveys (aOR 5.94, 95% CI 3.15-11.2), apps and devices designed for health (aOR 5.3, 95% CI 2.32-12.1), and a patient portal (aOR 4.3, 95% CI 2.06-8.99). CONCLUSIONS: The findings of this study suggest that mothers' privacy concerns affect their decisions to share sensitive data. However, mothers' access to the internet and the utilization of patient portals did not have a significant effect on their willingness to disclose their medical record data. Finally, researchers can use our findings to better address their study subjects concerns and gain their subjects trust to disclose data.
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OBJECTIVE: We evaluated the extent to which studies that tested short message service (SMS)- and application (app)-based interventions for diabetes self-management education and support (DSMES) report on factors that inform both internal and external validity as measured by the RE-AIM (Reach, Efficacy/Effectiveness, Adoption, Implementation, and Maintenance) framework. MATERIALS AND METHODS: We systematically searched PubMed, Embase, Web of Science, CINAHL (Cumulative Index of Nursing and Allied Health Literature), and IEEE Xplore Digital Library for articles from January 1, 2009, to February 28, 2019. We carried out a multistage screening process followed by email communications with study authors for missing or discrepant information. Two independent coders coded eligible articles using a 23-item validated data extraction tool based on the RE-AIM framework. RESULTS: Twenty studies (21 articles) were included in the analysis. The comprehensiveness of reporting on the RE-AIM criteria across the SMS- and app-based DSMES studies was low. With respect to internal validity, most interventions were well described and primary clinical or behavioral outcomes were measured and reported. However, gaps exist in areas of attrition, measures of potential negative outcomes, the extent to which the protocol was delivered as intended, and description on delivery agents. Likewise, we found limited information on external validity indicators across adoption, implementation, and maintenance domains. CONCLUSIONS: Reporting gaps were found in internal validity but more so in external validity in the current SMS- and app-based DSMES literature. Because most studies in this review were efficacy studies, the generalizability of these interventions cannot be determined. Future research should adopt the RE-AIM dimensions to improve the quality of reporting and enhance the likelihood of translating research to practice.
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Diabetes Mellitus/terapia , Aplicaciones Móviles , Automanejo , Telemedicina , Envío de Mensajes de Texto , Teléfono Celular , Humanos , Reproducibilidad de los ResultadosRESUMEN
Background: This study examined the moderating role of social support in the acculturation-obesity/central obesity relationship in Mexican American (MA) men and women. Methods: Data from NHANES 1999-2008 were used. Acculturation derived from language use, country of birth and length of residence in the U.S. Social support assessed emotional and financial support. BMI (≥30) and waist circumference (≥88â cm for women; ≥102â cm for men) measured obesity and central obesity, respectively. Weighted multivariate logistic regression models were used to describe associations. Results: Compared to less acculturation, more acculturation was associated with higher odds of obesity (ORs 2.48; 95% CI 1.06-5.83) and central obesity (2.90; 1.39-6.08) among MA men with low/no social support, but not among MA men reporting high social support. The modifying effects was not observed among women. Conclusion: Higher amounts of social support appeared to attenuate the risk of obesity/central obesity associated with acculturation. Interventions enhancing social support maybe effective among acculturated MAs, particularly among men.
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Aculturación , Americanos Mexicanos/psicología , Americanos Mexicanos/estadística & datos numéricos , Obesidad/epidemiología , Obesidad/psicología , Apoyo Social , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas Nutricionales , Obesidad Abdominal , Distribución por Sexo , Estados Unidos/epidemiologíaRESUMEN
BACKGROUND: Physical activity promotion within primary health care is in the spotlight. However, few studies have evaluated the long-term effectiveness of possible interventions. This study aimed to compare the effectiveness of 3 primary health care interventions in increasing leisure-time physical activity among older Brazilians. METHODS: Experimental study with 142 older residents of an ongoing urban cohort in São Paulo (Brazil). Participants were randomized into 3 groups: minimal intervention group, physician-based counseling group, and individual counseling and referral for physical activity programs group (CRG). We used the long version of the International Physical Activity Questionnaire to assess leisure-time physical activity at baseline, 4 years after baseline without any intervention, 3 months after intervention, and 6 months after intervention. Statistical analysis included repeated analysis of variance. RESULTS: At baseline, 31% of the individuals were active, and this figure remained stable for a period of 4 years. Three months after the interventions, there was a significant increase in leisure-time physical activity for CRG compared with the minimal intervention (P < .001) and physician-based counseling (P < .02) groups, and these differences persisted after 6 months (P < .001 and P < .05, respectively). CONCLUSION: Results indicate that interventions with CRG are effective in producing sustained changes in physical activity among older Brazilians.
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Consejo/métodos , Ejercicio Físico/psicología , Promoción de la Salud/métodos , Actividades Recreativas/psicología , Atención Primaria de Salud/métodos , Envejecimiento , Brasil , Femenino , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Derivación y ConsultaRESUMEN
PURPOSE OF REVIEW: To identify a common effect of health information technologies (HIT) on the management of cardiovascular disease (CVD) risk factors among people with type 2 diabetes (T2D) across randomized control trials (RCT). RECENT FINDINGS: CVD is the most frequent cause of morbidity and mortality among patients with diabetes. HIT are effective in reducing HbA1c; however, their effect on cardiovascular risk factor management for patients with T2D has not been evaluated. We identified 21 eligible studies (23 estimates) with measurement of SBP, 20 (22 estimates) of DBP, 14 (17 estimates) of HDL, 14 (17 estimates) of LDL, 15 (18 estimates) of triglycerides, and 10 (12 estimates) of weight across databases. We found significant reductions in SBP, DBP, LDL, and TG, and a significant improvement in HDL associated with HIT. As adjuvants to standard diabetic treatment, HIT can be effective tools for improving CVD risk factors among patients with T2D, especially in those whose CVD risk factors are not at goal.
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Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Informática Médica , Humanos , Factores de Riesgo , TriglicéridosRESUMEN
BACKGROUND: Previous data showed that metabolic syndrome (MS) and its components are associated with cancer mortality. However, whether the association varies by race is unclear. To examine the association between metabolic risk factors and cancer death in non-Hispanic whites (whites) and non-Hispanic blacks (blacks) in the US. METHODS: We used data from National Health and Nutrition Examination Survey III (NHANES III) [1988-1994], a nationwide survey conducted by the National Center for Health Statistics of the Centers for Disease Control and Prevention in the US. We included a total of 18,001 participants aged ≥20 years in the study. We ascertained cancer death from NHANES III mortality follow-up study, which linked with the National Death Index and provides follow-up from the date of baseline NHANES III [1988-1994] through December 2006. MS was defined as the presence of at least three of five risk factors [i.e., elevated triglycerides (TG) (≥150 mg/dL), impaired fasting blood glucose (≥100 mg/dL), increased waist circumference (≥88 cm for women and ≥102 cm for men), elevated blood pressure (BP) (≥130 mmHg systolic BP or ≥85 mmHg diastolic BP) and, reduced high density lipoprotein (HDL) cholesterol (<50 mg/dL)]. The interaction between race and MS and its components against total cancer mortality was first tested. Cox proportional hazards regression was then used to estimate the hazard ratios (HR) and 95% confidence intervals (CI) for total cancer mortality in relation to each MS individual component, and a MS composite score in whites and blacks, separately. RESULTS: We found a statistically significant interaction between MS and race as well as MS components and race in their effect on cancer death. In adjusted models, elevated BP was significantly associated with a 41% increased risk of total cancer death in blacks (HR 1.41; 95% CI, 1.10-1.80) while in whites, the risk of cancer death increased 29% with central obesity (HR 1.29; 95% CI, 1.05-1.59), 26% with low HDL (HR 1.26; 95% CI, 1.04-1.52), and 45% with impaired fasting glucose (HR 1.45; 95% CI, 1.19-1.76). CONCLUSIONS: The relationship between metabolic risk factors and total cancer mortality differed by race in the US. In blacks, high BP was associated with an increased risk for cancer death while in whites, central obesity, low HDL, and especially impaired fasting glucose were positively associated with cancer death.
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OBJECTIVE: After almost three decades of U.S. surveillance in fruit and vegetable (F&V) intake and obesity, it is important to evaluate their usefulness for monitoring prevention and health promotion efforts in public health. We used U.S. surveillance data to evaluate whether the 16-year trends of F&V intake, measured by the prevalence of eating five or more servings of fruits and vegetables a day (FV5/day) is related to obesity trend as measured by its prevalence in the same period. We also evaluated whether trends in the prevalence of FV5/day by important sociodemographic factors (age, race/ethnicity, etc.) could explain the findings. STUDY DESIGN: A secondary analysis of U.S. adults (≥ 18 years) from the Behavioral Risk Factor Surveillance System (BRFSS) (1994-2009). METHODS: We categorized survey subjects for their F&V intake derived from the BRFSS six-question food frequency questionnaire into two groups: < FV5/day vs. ≥ FV5/day. Obesity was defined as BMI ≥ 30. We used logistic regressions to compute predicted prevalence of FV5/day and obesity, and to estimate the odds ratio of FV5/day by obesity and levels of sociodemographic, stratified by year. RESULTS: Between 1994 and 2009, the prevalence of FV5/day hovered around 25% among U.S. adults, while the obesity prevalence steadily increased from 14.8% to 27.4%. As measured through odds ratio, an inverse association between FV5/day and obesity was only observed in 55+, but not in other age, racial/ethnic or education groups. CONCLUSIONS: Between 1994 and 2009, we could not confirm a decrease in the prevalence of FV5/day associated with an increase in obesity prevalence, except for age 55+ group. Known disparities in FV5/day and obesity across sociodemographic factors persisted over the study period. FV5/day may be an inappropriate measure of total calories derived from eating fruits and vegetables. Its use to measure impact of public health strategies to improve nutrition and prevent obesity may be questionable.