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1.
Cancer Med ; 12(6): 7438-7449, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36433634

RESUMEN

BACKGROUND: Melanoma mortality rates in the US are highest among older men, individuals of lower socioeconomic status (SES), and people of color. To better understand these inequities, a qualitative exploratory study was conducted in Northern and Southern California to generate knowledge about barriers and facilitators of awareness, prevention, and early detection of melanoma in lower SES Latinx and non-Latinx White (NLW) individuals living in urban and semi-rural areas. METHODS: Nineteen focus groups were conducted (N = 176 adult participants), stratified by race/ethnicity (Latinx, low-income NLW), geography (semi-rural, urban), and language (English and Spanish). Inductive and deductive thematic analysis was conducted, and the findings were organized using the socioecological model framework: individual, interpersonal, community, and health system/policy levels. RESULTS: Four socioecological themes describe how key factors affect knowledge, perceived risk, preventive behaviors, and melanoma screening. Individual level findings revealed that many participants were not familiar with melanoma, yet were willing to learn through trusted sources. Having brown or darker skin tone was perceived as being associated with lower risk for skin cancer. Interpersonally, social relationships were important influences for skin cancer prevention practice. However, for several Latinx and semi-rural participants, conversations about melanoma prevention did not occur with family and peers. At the community level, semi-rural participants reported distance or lack of transportation to a clinic as challenges for accessing dermatology care. Healthcare systems barriers included burdens of additional healthcare costs for dermatology visits and obtaining referral. CONCLUSIONS: Varying factors influence the awareness levels, beliefs, and behaviors associated with knowledge, prevention, and early detection of melanoma among low-income Latinx and NLW individuals and in semi-rural areas. Results have implications for health education interventions. Navigation strategies that target individuals, families, and health care settings can promote improved prevention and early detection of melanoma in these communities.


Asunto(s)
Melanoma , Neoplasias Cutáneas , Masculino , Humanos , Adulto , Anciano , Blanco , Investigación Cualitativa , California/epidemiología , Melanoma/diagnóstico , Melanoma/epidemiología , Melanoma/prevención & control
2.
JMIR Form Res ; 6(12): e42191, 2022 Dec 13.
Artículo en Inglés | MEDLINE | ID: mdl-36512404

RESUMEN

BACKGROUND: Detailed self-monitoring (or tracking) of dietary intake is a popular and effective weight loss approach that can be delivered via digital tools, although engagement declines over time. Simplifying the experience of self-monitoring diet may counteract this decline in engagement. Testing these strategies among racial and ethnic minority groups is important as these groups are often disproportionately affected by obesity yet underrepresented in behavioral obesity treatment. OBJECTIVE: In this 2-arm pilot study, we aimed to evaluate the feasibility and acceptability of a digital weight loss intervention with either detailed or simplified dietary self-monitoring. METHODS: We recruited racial and ethnic minority adults aged ≥21 years with a BMI of 25 kg/m2 to 45 kg/m2 and living in the United States. The Pacific time zone was selected for a fully remote study. Participants received a 3-month stand-alone digital weight loss intervention and were randomized 1:1 to either the detailed arm that was instructed to self-monitor all foods and drinks consumed each day using the Fitbit mobile app or to the simplified arm that was instructed to self-monitor only red zone foods (foods that are highly caloric and of limited nutritional value) each day via a web-based checklist. All participants were instructed to self-monitor both steps and body weight daily. Each week, participants were emailed behavioral lessons, action plans, and personalized feedback. In total, 12 a priori benchmarks were set to establish feasibility, including outcomes related to reach, retention, and self-monitoring engagement (assessed objectively via digital tools). Acceptability was assessed using a questionnaire. Weight change was assessed using scales shipped to the participants' homes and reported descriptively. RESULTS: The eligibility screen was completed by 248 individuals, of whom 38 (15.3%) were randomized, 18 to detailed and 20 to simplified. At baseline, participants had a mean age of 47.4 (SD 14.0) years and BMI of 31.2 (SD 4.8) kg/m2. More than half (22/38, 58%) were identified as Hispanic of any race. The study retention rate was 92% (35/38) at 3 months. The detailed arm met 9 of 12 feasibility benchmarks, while the simplified arm met all 12. Self-monitoring engagement was moderate to high (self-monitoring diet: median of 49% of days for detailed, 97% for simplified; self-monitoring steps: 99% for detailed, 100% for simplified; self-monitoring weight: 67% for detailed, 80% for simplified). Participants in both arms reported high satisfaction, with 89% indicating that they would recommend the intervention. Weight change was -3.4 (95% CI -4.6 to -2.2) kg for detailed and -3.3 (95% CI -4.4 to -2.2) kg for simplified. CONCLUSIONS: A digital weight loss intervention that incorporated either detailed or simplified dietary self-monitoring was feasible, with high retention and engagement, and acceptable to racial and ethnic minority adults. TRIAL REGISTRATION: ASPREDICTED #66674; https://aspredicted.org/ka478.pdf.

3.
AMIA Annu Symp Proc ; 2021: 1029-1038, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-35308912

RESUMEN

It is well known that the US is plagued by health inequities: unjust differences in morbidity and mortality rates by sociodemographic factors. A potential method to address such inequities lies in utilizing health information technologies (HIT) to reach under-resourced populations and increase their involvement in healthcare. Previous researchers have done just this, using HIT tools to engage under-resourced communities and improve outcomes. However, it is unclear how HIT usage varies by sociodemographic characteristics. This study investigated this question through analysis of the Health Information National Trends Survey (HINTS) and proposed tailored HIT interventions for specific subpopulations. Internet, smartphone, and wearable device usage were analyzed by age, race/ethnicity, educational attainment, and income; purposes of HIT usage were assessed; and logistic regression models were conducted to determine associations between purposes of HIT usage and sociodemographic predictors. Results showed that Black/African American, Latinx, and Asian populations all had significantly increased use of health videos, while participants with low educational attainment had significantly decreased use of many HIT tools. Thus, this study highlights effective interventions for specific racial/ethnic populations and showcases a need for HIT tools inclusive towards low education populations to increase their engagement in healthcare and reduce inequities.


Asunto(s)
Informática Médica , Atención a la Salud , Etnicidad , Humanos , Renta , Encuestas y Cuestionarios
4.
Artículo en Inglés | MEDLINE | ID: mdl-32121001

RESUMEN

The trajectory of aging is profoundly impacted by the physical and social environmental contexts in which we live. While "top-down" policy activities can have potentially wide impacts on such contexts, they often take time, resources, and political will, and therefore can be less accessible to underserved communities. This article describes a "bottom-up", resident-engaged method to advance local environmental and policy change, called Our Voice, that can complement policy-level strategies for improving the health, function, and well-being of older adults. Using the World Health Organization's age-friendly cities global strategy, we describe the Our Voice citizen science program of research that has specifically targeted older adults as environmental change agents to improve their own health and well-being as well as that of their communities. Results from 14 Our Voice studies that have occurred across five continents demonstrate that older adults can learn to use mobile technology to systematically capture and collectively analyze their own data. They can then successfully build consensus around high-priority issues that can be realistically changed and work effectively with local stakeholders to enact meaningful environmental and policy changes that can help to promote healthy aging. The article ends with recommended next steps for growing the resident-engaged citizen science field to advance the health and welfare of all older adults.


Asunto(s)
Ciencia Ciudadana , Planificación Ambiental , Envejecimiento Saludable , Proyectos de Investigación , Humanos
5.
JAMA ; 321(9): 869-879, 2019 03 05.
Artículo en Inglés | MEDLINE | ID: mdl-30835308

RESUMEN

Importance: Coexisting obesity and depression exacerbate morbidity and disability, but effective treatments remain elusive. Objective: To test the hypothesis that an integrated collaborative care intervention would significantly improve both obesity and depression at 12 months compared with usual care. Design, Setting, and Participants: The Research Aimed at Improving Both Mood and Weight (RAINBOW) randomized clinical trial enrolled 409 adults with body mass indices (BMIs) of 30 or greater (≥27 for Asian adults) and 9-item Patient Health Questionnaire (PHQ-9) scores of 10 or greater. Primary care patients at a health system in Northern California were recruited from September 30, 2014, to January 12, 2017; the date of final 12-month follow-up was January 17, 2018. Interventions: All participants randomly assigned to the intervention (n = 204) or the usual care control group (n = 205) received medical care from their personal physicians as usual, received information on routine services for obesity and depression at their clinic, and received wireless physical activity trackers. Intervention participants also received a 12-month intervention that integrated a Diabetes Prevention Program-based behavioral weight loss treatment with problem-solving therapy for depression and, if indicated, antidepressant medications. Main Outcomes and Measures: The co-primary outcome measures were BMI and 20-item Depression Symptom Checklist (SCL-20) scores (range, 0 [best] to 4 [worst]) at 12 months. Results: Among 409 participants randomized (mean age of 51.0 years [SD, 12.1 years]; 70% were women; mean BMI of 36.7 [SD, 6.4]; mean PHQ-9 score of 13.8 [SD, 3.1]; and mean SCL-20 score of 1.5 [SD, 0.5]), 344 (84.1%) completed 12-month follow-up. At 12 months, mean BMI declined from 36.7 (SD, 6.9) to 35.9 (SD, 7.1) among intervention participants compared with a change in mean BMI from 36.6 (SD, 5.8) to 36.6 (SD, 6.0) among usual care participants (between-group mean difference, -0.7 [95% CI, -1.1 to -0.2]; P = .01). Mean SCL-20 score declined from 1.5 (SD, 0.5) to 1.1 (SD, 1.0) at 12 months among intervention participants compared with a change in mean SCL-20 score from 1.5 (SD, 0.6) to 1.4 (SD, 1.3) among usual care participants (between-group mean difference, -0.2 [95% CI, -0.4 to 0]; P = .01). There were 47 adverse events or serious adverse events that involved musculoskeletal injuries (27 in the intervention group and 20 in the usual care group). Conclusions and Relevance: Among adults with obesity and depression, a collaborative care intervention integrating behavioral weight loss treatment, problem-solving therapy, and as-needed antidepressant medications significantly improved weight loss and depressive symptoms at 12 months compared with usual care; however, the effect sizes were modest and of uncertain clinical importance. Trial Registration: ClinicalTrials.gov Identifier: NCT02246413.


Asunto(s)
Antidepresivos/uso terapéutico , Terapia Conductista , Depresión/terapia , Obesidad/terapia , Solución de Problemas , Pérdida de Peso , Actigrafía , Adulto , Análisis de Varianza , Índice de Masa Corporal , Terapia Combinada , Depresión/complicaciones , Depresión/tratamiento farmacológico , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Obesidad/psicología , Método Simple Ciego
6.
Transl Behav Med ; 8(2): 280-294, 2018 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-29385564

RESUMEN

Research is rapidly extending its focus to develop and evaluate weight management interventions that incorporate eHealth technologies. Comparative effectiveness of eHealth interventions is partly limited by the extensive heterogeneity in intervention design, variation in use of eHealth tools, and expanding development of novel tools to promote weight management. We closely examined, characterized, and categorized the use and function of eHealth tools across a wide range of eHealth interventions for weight management in order to first create a novel schematic framework for eHealth interventions and, second, to evaluate eHealth interventions using this framework. We examined 49 randomized controlled trials from two systematic reviews evaluating the effectiveness of eHealth interventions for weight loss. Further characterization of each intervention identified common use and function of eHealth tools represented within interventions and thus important to include in the proposed framework. This resulted in six descriptive domains. We then categorized each eHealth intervention within the context of the newly developed framework. Last, we examined efficacious interventions in the context of the framework. Twenty-five randomized controlled trials reported significantly more weight loss between the intervention group utilizing eHealth, compared to a non-eHealth control intervention and/or within an eHealth intervention group. Of these 25 interventions, 15 (60%) used automated feedback (Domain 1), 13 (52%) used non-eHealth tailored feedback by a health care provider (Domain 5), and 8 (32%) used tailored feedback from a health care professional through an electronic channel (Domain 2). The proposed schematic framework offers an alternative and novel approach for comparing across interventions and informing the development and evaluation of eHealth interventions.


Asunto(s)
Investigación sobre Servicios de Salud/métodos , Evaluación de Procesos y Resultados en Atención de Salud/métodos , Sobrepeso/terapia , Telemedicina/métodos , Pérdida de Peso , Adulto , Humanos
7.
Prev Med ; 100: 180-193, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28450123

RESUMEN

Moderate and severe obesity (BMI ≥35 kg/m2) affect 15% of US adults, with a projected increase over the next two decades. This study reviews evidence of behavioral lifestyle interventions for weight loss in this population. We searched PubMed, PsychInfo, CINAHL®, and Scopus through February 2016 for experimental and quasi-experimental studies that tested a dietary and/or physical activity intervention with a behavioral modification component versus a comparator; and had ≥six-month follow-up and a weight-related primary outcome. Twelve studies representing 1862 participants (mean BMI 37.5-48.3, mean age 30-54 years) were included. Nine studies compared different behavioral interventions and three tested behavioral intervention(s) versus pharmacological or surgical treatments. Among the 25 behavioral interventions in the 12 studies, 18 reported percent of participants achieving clinically significant weight loss up to 12months (32-97% achieving 5% or 3-70% achieving 10%). Three studies measured other cardiometabolic risk factors, but showed no significant risk reduction. Seven interventions with greater effectiveness (i.e., at least 31% achieving ≥10% or 62% achieving ≥5% weight loss up to one year) included multiple components (diet, physical activity, and behavioral strategies), long duration (e.g., one year), and/or intensive contacts (e.g., inpatient stays for clinic-based interventions, weekly contacts for community-based ones). Evidence for the effectiveness of behavioral interventions versus pharmacological or surgical treatment was limited. Comprehensive and intensive behavioral interventions can result in clinically significant, albeit modest, weight loss in this obese subpopulation but may not result significant improvements in other cardiometabolic risk factors. More research on scalable and sustainable interventions is needed.


Asunto(s)
Terapia Conductista/métodos , Estilo de Vida , Obesidad/terapia , Dieta , Ejercicio Físico/fisiología , Humanos , Conducta de Reducción del Riesgo
8.
J Acad Nutr Diet ; 115(4): 537-50.e2, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25578925

RESUMEN

BACKGROUND: Latino immigrants have high rates of obesity and face barriers to weight loss. OBJECTIVE: To evaluate the effectiveness of a case-management (CM) intervention with and without community health workers (CHWs) for weight loss. DESIGN: This was a 2-year, randomized controlled trial comparing two interventions with each other and with usual care (UC). PARTICIPANTS/SETTING: Eligible participants included Latinos with a body mass index of 30 to 60 and one or more heart disease risk factors. The 207 participants recruited during 2009-2010 had a mean age of 47 years and were mostly women (77%). At 24 months, 86% of the sample was assessed. INTERVENTION: The CM+CHW (n=82) and CM (n=84) interventions were compared with each other and with UC (n=41). Both included an intensive 12-month phase followed by 12 months of maintenance. The CM+CHW group received home visits. MAIN OUTCOME MEASURES: Weight change at 24 months. STATISTICAL ANALYSES: Generalized estimating equations using intent-to-treat. RESULTS: At 6 months, mean weight loss in the CM+CHW arm was -2.1 kg (95% CI -2.8 to -1.3) or -2% of baseline weight (95% CI -1% to -2%) compared with -1.6 kg (95% CI -2.4 to -0.7; % weight change, -2%, -1%, and -3%) in CM and -0.9 kg (95% CI -1.8 to 0.1; % weight change, -1%, 0%, and -2%) in UC. By 12 and 24 months, differences narrowed and CM+CHW was no longer statistically distinct. Men achieved greater weight loss than women in all groups at each time point (P<0.05). At 6 months, men in the CM+CHW arm lost more weight (-4.4 kg; 95% CI -6.0 to -2.7) compared with UC (-0.4 kg; 95% CI -2.4 to 1.5), but by 12 and 24 months differences were not significant. CONCLUSIONS: This study demonstrated that incorporation of CHWs may help promote initial weight loss, especially among men, but not weight maintenance. Additional strategies to address social and environmental influences may be needed for Latino immigrant populations.


Asunto(s)
Servicios de Salud Comunitaria , Hispánicos o Latinos , Obesidad/terapia , Pobreza , Pérdida de Peso , Adulto , Glucemia , Presión Sanguínea , Índice de Masa Corporal , Agentes Comunitarios de Salud , Diabetes Mellitus Tipo 2 , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores Sexuales , Resultado del Tratamiento , Estados Unidos , Circunferencia de la Cintura
9.
Matern Child Nutr ; 11(4): 550-8, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24784797

RESUMEN

Although pica, the craving and purposive consumption of non-food substances, is common among many populations, especially during pregnancy, the health consequences are not well understood. Further, very little is known about pica among Mexican populations in the United States and Mexico. Therefore, we conducted formative research to understand pica in this understudied population. Our objectives were to identify the frequency and types of pica behaviours, to understand perceived aetiologies and consequences of pica and to ascertain if the behaviour was common enough to warrant a larger study. We held nine focus group discussions (three in the Salinas Valley, California; six in Xoxocotla, Morelos, Mexico) with 76 Mexican-born women who were currently pregnant or had delivered within the past 2 years. Earth, adobe, bean stones and ice were the most commonly reported pica substances. Twenty-eight of the 76 participants (37%) reported ever engaging in pica; 22 participants (29%) reported doing so during pregnancy. The proportion of women reporting pica in the United States and Mexico was 43% and 34%, respectively. Women attributed pica to the overwhelming organoleptic appeal of pica substances (especially smell and texture) and to micronutrient deficiencies. Perceived consequences of unfulfilled pica cravings were birthmarks or fetal loss; fulfilled pica cravings were also thought to be generally harmful to the mother or child, with several women specifying toxic lead, pesticides or 'worms'. In sum, pica among Mexican women is common enough to warrant a larger epidemiologic study of its sociodemographic correlates and physiological consequences.


Asunto(s)
Americanos Mexicanos/psicología , Americanos Mexicanos/estadística & datos numéricos , Pica/epidemiología , Pica/psicología , Complicaciones del Embarazo/epidemiología , Complicaciones del Embarazo/psicología , California/epidemiología , Femenino , Humanos , México/etnología , Embarazo , Prevalencia
10.
Obesity (Silver Spring) ; 22(1): 45-51, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23740619

RESUMEN

OBJECTIVE: To examine weight loss patterns and predictors among participants in a primary care-based translation study of the Diabetes Prevention Program lifestyle intervention. DESIGN AND METHODS: Cluster analysis identified short-term (12-week) weight loss patterns among 72 intervention participants. Analysis of variance assessed cluster differences in weight loss maintenance at 15-month follow-up. Discriminant analysis identified baseline characteristics that best differentiated between clusters. RESULTS: Participants had baseline mean (SD) age of 55.0 (10.8) years and BMI of 31.9 (5.2) kg/m(2) . Cluster analysis identified three short-term weight loss patterns: modest (n = 15; 21%), moderate-and-steady (n = 43; 60%), and substantial-and-early (n = 14; 19%). Only participants with the latter two patterns achieved clinically significant (≥5%) short-term weight loss and maintained it at 15 months. On discriminant analysis, the modest cluster was most differentiated from other clusters by high friend encouragement for dietary change, high obesity-related problems, and low physical well-being. The moderate-and-steady cluster was differentiated by lower physical activity, family encouragement, and depression symptoms. CONCLUSION: Results provided insight into the heterogeneity of response to an effective lifestyle intervention by identifying short-term weight loss patterns and their baseline predictors and relationship to 15-month success. If replicated, results may help tailor strategies for participant subgroups in weight loss programs.


Asunto(s)
Pérdida de Peso , Programas de Reducción de Peso , Adulto , Anciano , Análisis por Conglomerados , Dieta , Femenino , Estudios de Seguimiento , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Actividad Motora , Obesidad/terapia , Encuestas y Cuestionarios , Resultado del Tratamiento
11.
Health Promot Pract ; 14(4): 491-7, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23539264

RESUMEN

The E-LITE (Evaluation of Lifestyle Interventions to Treat Elevated Cardiometabolic Risk in Primary Care) trial evaluated the feasibility and potential effectiveness of translating an evidence-based lifestyle intervention for the management of obesity and related risk factors in a primary care setting. Delivered by allied health care providers, the intervention promoted at least 7% weight loss and at least 150 minutes per week of moderate-intensity physical activity through gradual, sustainable lifestyle changes. Activities included interactive group lessons, food tasting, guided physical activity, and technology-mediated self-monitoring and behavioral counseling. This article discusses insights and potential areas for improvement to strengthen program implementation for dissemination of the E-LITE program to other primary care settings. We focus on (a) the role of allied health professionals in program delivery, (b) strengthening program integration within a primary care clinic, and (c) the use of information technology to extend the reach and impact of the program. Our experience shows the feasibility of implementing an evidence-based lifestyle intervention program combining group-delivered nutrition and behavioral counseling, physical activity training, and technology-mediated follow-up in a primary care setting. Challenges remain, and we offer possible solutions to overcome them.


Asunto(s)
Enfermedades Cardiovasculares/prevención & control , Práctica Clínica Basada en la Evidencia , Conductas Relacionadas con la Salud , Estilo de Vida , Atención Primaria de Salud/organización & administración , Consejo/organización & administración , Dieta , Ejercicio Físico , Promoción de la Salud/métodos , Promoción de la Salud/organización & administración , Humanos , Internet , Atención Primaria de Salud/métodos , Evaluación de Programas y Proyectos de Salud , Pérdida de Peso
12.
Contemp Clin Trials ; 34(1): 126-35, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23124047

RESUMEN

BACKGROUND: Although the Diabetes Prevention Program (DPP) lifestyle intervention reduced type 2 diabetes incidence by 58% among high-risk adults at academic centers, it requires translation into typical primary care settings. Using baseline data from the Evaluation of Lifestyle Interventions to Treat Elevated Cardiometabolic Risk in Primary Care (E-LITE) randomized controlled trial, we evaluated the potential of its two DPP-based interventions to reach their target populations and be adopted into routine use. METHODS: Overweight/obese adults with increased cardiometabolic risk enrolled from one primary care clinic. Using the RE-AIM (Reach, Effectiveness, Adoption, Implementation, Maintenance) model, we assessed reach with data on patient identification, participation, and representativeness, and adoption with data on intervention feasibility and potential for organizational diffusion. RESULTS: The target population was identified by searching electronic health records. Contact was attempted for 2391 patients who completed initial screening by phone (56% uptake) or online (44%). Most (88%) of those screened ineligible were not within the target population; 12% were excluded because of research requirements. Conservatively estimated participation rate was 44%. Participants (n=241) included 54% men and had a mean (SD) age of 52.9 years (10.6) and body mass index of 32 kg/m(2) (5.4). Regarding adoption, all clinic physicians agreed to participate. The feasibility of intervention implementation and dissemination was enhanced by leveraging existing intervention, training, and primary care resources. CONCLUSIONS: E-LITE's lifestyle interventions had fair-to-good potential for primary care reach and adoption. Our trial evidence and structured reporting may inform real-world implementation of translational trials by health networks, physicians, and payers.


Asunto(s)
Diabetes Mellitus/prevención & control , Estilo de Vida , Obesidad/terapia , Atención Primaria de Salud/métodos , Autocuidado/métodos , Pérdida de Peso , Programas de Reducción de Peso/métodos , Adulto , Índice de Masa Corporal , Diabetes Mellitus/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Obesidad/complicaciones , Conducta de Reducción del Riesgo
13.
Int J Obes (Lond) ; 2012(2): s16-s22, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23667289

RESUMEN

Adult and childhood obesity and related adverse outcomes are most common among racial/ethnic minorities and socio-economically disadvantaged populations in the United States . Research approaches to obesity developed in mainstream populations and deploying new information technologies may exacerbate existing disparities in obesity. Current obesity management and prevention research priorities will not maximally impact this critical problem unless investigators explicitly focus on discovering innovative strategies for preventing and managing obesity in the disadvantaged populations that are most affected. On the basis of our research experience, four key research approaches are needed: (1) elucidating the underlying social forces that lead to disparities; (2) directly involving community members in the development of research questions and research methods; (3) developing flexible strategies that allow tailoring to multiple disadvantaged populations; and (4) building culturally and socio-economically tailored strategies specifically for populations most affected by obesity. Our experience with a community-based longitudinal cohort study and two health center-based clinical trials illustrate these principles as a contrast to traditional research priorities that can inadvertently worsen existing social inequities. If obesity research does not directly address healthcare and health-outcome disparities, it will contribute to their perpetuation.

14.
Environ Health Perspect ; 119(10): 1442-8, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21498147

RESUMEN

BACKGROUND: Polybrominated diphenyl ethers (PBDE), which are used as flame retardants, have been found to be higher in residents of California than of other parts of the United States. OBJECTIVES: We aimed to investigate the role of immigration to California on PBDE levels in Latino children. METHODS: We compared serum PBDE concentrations in a population of first-generation Mexican-American 7-year-old children (n = 264), who were born and raised in California [Center for Health Analysis of Mothers and Children of Salinas (CHAMACOS) study], with 5-year-old Mexican children (n = 283), who were raised in the states in Mexico where most CHAMACOS mothers had originated (Proyecto Mariposa). RESULTS: On average, PBDE serum concentrations in the California Mexican-American children were three times higher than their mothers' levels during pregnancy and seven times higher than concentrations in the children living in Mexico. The PBDE serum concentrations were higher in the Mexican-American children regardless of length of time their mother had resided in California or the duration of the child's breast-feeding. These data suggest that PBDE serum concentrations in these children resulted primarily from postnatal exposure. CONCLUSIONS: Latino children living in California have much higher PBDE serum levels than their Mexican counterparts. Given the growing evidence documenting potential health effects of PBDE exposure, the levels in young children noted in this study potentially present a major public health challenge, especially in California. In addition, as PBDEs are being phased out and replaced by other flame retardants, the health consequences of these chemical replacements should be investigated and weighed against their purported fire safety benefits.


Asunto(s)
Éteres Difenilos Halogenados/sangre , California , Niño , Preescolar , DDT/sangre , Diclorodifenil Dicloroetileno/sangre , Femenino , Retardadores de Llama , Humanos , Masculino , Americanos Mexicanos , Embarazo
15.
Environ Health Perspect ; 117(9): 1359-67, 2009 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-19750098

RESUMEN

OBJECTIVES: Dichlorodiphenyltrichloroethane (DDT) was used worldwide until the 1970s, when concerns about its toxic effects, its environmental persistence, and its concentration in the food supply led to use restrictions and prohibitions. In 2001, more than 100 countries signed the Stockholm Convention on Persistent Organic Pollutants (POPs), committing to eliminate the use of 12 POPs of greatest concern. However, DDT use was allowed for disease vector control. In 2006, the World Health Organization and the U.S. Agency for International Development endorsed indoor DDT spraying to control malaria. To better inform current policy, we reviewed epidemiologic studies published from 2003 to 2008 that investigated the human health consequences of DDT and/or DDE (dichlorodiphenyldichloroethylene) exposure. DATA SOURCES AND EXTRACTION: We conducted a PubMed search in October 2008 and retrieved 494 studies. DATA SYNTHESIS: Use restrictions have been successful in lowering human exposure to DDT, but blood concentrations of DDT and DDE are high in countries where DDT is currently being used or was more recently restricted. The recent literature shows a growing body of evidence that exposure to DDT and its breakdown product DDE may be associated with adverse health outcomes such as breast cancer, diabetes, decreased semen quality, spontaneous abortion, and impaired neurodevelopment in children. CONCLUSIONS: Although we provide evidence to suggest that DDT and DDE may pose a risk to human health, we also highlight the lack of knowledge about human exposure and health effects in communities where DDT is currently being sprayed for malaria control. We recommend research to address this gap and to develop safe and effective alternatives to DDT.


Asunto(s)
DDT/toxicidad , Exposición a Riesgos Ambientales , Insecticidas/toxicidad , Contaminantes Químicos del Agua/toxicidad , Carcinógenos/toxicidad , Diabetes Mellitus/inducido químicamente , Femenino , Humanos , Sistema Nervioso/efectos de los fármacos , Reproducción/efectos de los fármacos , Teratógenos/toxicidad
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