RESUMO
The mode of transmission of Helicobacter pylori, a bacterium causing gastric cancer and peptic ulcer disease, is unknown although waterborne transmission is a likely pathway. This study investigated the hypothesis that access to treated water and a sanitary sewerage system reduces the H. pylori incidence rate, using data from 472 participants in a cohort study that followed children in Juarez, Mexico, and El Paso, Texas, from April 1998, with caretaker interviews and the urea breath test for detecting H. pylori infection at target intervals of six months from birth through 24 months of age. The unadjusted hazard ratio comparing bottled/vending machine water to a municipal water supply was 0.71 (95% confidence interval (CI): 0.50, 1.01) and comparing a municipal sewer connection to a septic tank or cesspool, 0.85 (95% CI: 0.60, 1.20). After adjustment for maternal education and country, the hazard ratios decreased slightly to 0.70 (95% confidence interval: 0.49, 1.00) and 0.77 (95% confidence interval: 0.50, 1.21), respectively. These results provide moderate support for potential waterborne transmission of H. pylori.
Assuntos
Infecções por Helicobacter/transmissão , Helicobacter pylori/isolamento & purificação , Esgotos , Microbiologia da Água , Abastecimento de Água/normas , Estudos de Coortes , Infecções por Helicobacter/prevenção & controle , Humanos , Incidência , Lactente , México/epidemiologia , Estados Unidos/epidemiologia , Poluição da ÁguaRESUMO
Postpartum Hispanic women in the USA are at elevated risk for neural tube defects in subsequent pregnancies from the combined effects of ethnicity, folate depletion from the prior pregnancy and lactation, and high parity rates with short inter-birth intervals. This study evaluated an education programme and distribution of a 3-month starter package of multivitamins among Hispanic women attending nutrition clinics for low-income women in El Paso, Texas. At 1-6 weeks postpartum, 329 subjects were selected to receive education only, multivitamins only, education and multivitamins, or no intervention. Multivariable regression obtained odds ratios (OR) and 95% confidence intervals [CI] to measure the association between intervention status and self-reported multivitamin use at least four times per week at 6 and 12 months postpartum, while controlling for potential confounding variables. Multivitamin distribution was related to consumption at both 6 months (OR = 3.5 [95% CI 1.1, 11.2]) and 12 months (OR = 6.5 [95% CI 1.5, 28.3]). Multivitamins plus education was most effective in increasing multivitamin use at both periods: 6 months (OR = 4.0 [95% CI 1.53, 11.7]) and 12 months (OR = 6.4 [95% CI 1.7, 24.2]). At enrolment, 66% of women regularly took vitamins, and approximately 35% took them at both 6 and 12 months postpartum. The education intervention alone was not associated with multivitamin use at either 6 months (OR = 0.79 [95% CI 0.3, 2.4]) or 12 months (OR = 3.1 [95% CI 0.8, 12.1]). Multivitamin use declines precipitously during postpartum at the time Hispanic women may be susceptible to a subsequent pregnancy. This study provides evidence that multivitamin starter packs sustain multivitamin usage up to 1 year postpartum for a specific high-risk group, but the effect of educational intervention alone should be further studied.
Assuntos
Suplementos Nutricionais/estatística & dados numéricos , Deficiência de Ácido Fólico/prevenção & controle , Promoção da Saúde/métodos , Americanos Mexicanos , Defeitos do Tubo Neural/prevenção & controle , Vitaminas/uso terapêutico , Adulto , Feminino , Deficiência de Ácido Fólico/etnologia , Humanos , Defeitos do Tubo Neural/etnologia , Período Pós-PartoRESUMO
OBJECTIVE: High parity and short birth intervals among Hispanic women may deplete their folic-acid levels and place them at risk for neural tube defects (NTDs). The purposes of this study were to evaluate factors associated with multivitamin supplementation rates during the early (one to six weeks) postpartum period among Mexican-origin women and present their implications in preventing NTDs in subsequent pregnancies. DESIGN: A cross-sectional study was conducted among Hispanic mothers attending women, infant, and children (WIC) clinics in El Paso, Texas. Information was ascertained via interview on regular multivitamin use, and independent variables including sociodemographic characteristics, multivitamin knowledge, obstetric and health history, and birth control and infant feeding methods. RESULTS: Only 66% of 329 mothers took postpartum multivitamins. Multivitamin consumption declined by 29% for each postpartum week (P=.0003). Adjusted odds ratios indicated positive associations between multivitamin supplementation and prenatal care exclusively in the United States (P=.007), breastfeeding (P=.071), preconceptional (P=.005) and prenatal multivitamin use (P=.0002), and multivitamin recommendation from a healthcare provider (P < or = .0001). The majority of 247 women with multivitamin counsel (59%) were told to finish prenatal vitamins or to continue use while breastfeeding. Smokers were less likely to take multivitamins than nonsmokers (P=.007). CONCLUSIONS: A provider recommendation highly motivates early postpartum women to consume multivitamins. Since most women have more than one child, this period likely represents an interpregnancy interval and is an opportune time to educate and encourage women to take multivitamins. This simple and inexpensive measure could prevent birth defects in future pregnancies.
Assuntos
Americanos Mexicanos , Período Pós-Parto , Vitaminas , Adulto , Estudos Transversais , Suplementos Nutricionais , Feminino , Deficiência de Ácido Fólico , Humanos , Defeitos do Tubo Neural , Razão de Chances , TexasRESUMO
PURPOSE: To determine the rates of alcohol consumption and alcohol-related risk behaviors among a sample of high school students living on the U.S.-Mexico border, as well as to investigate factors associated with alcohol use among this population. METHODS: A self-administered anonymous questionnaire was administered to students in grades 9-12 during Fall and Spring semesters of 2001 (n = 1366; 639 males and 722 females) in 16 high schools in a community along the U.S.-Mexico border. The questionnaire addressed demographic factors, alcohol consumption, and alcohol-related behaviors. Surveys were completed by Chi-square tests for homogeneity of the odds ratio and logistic regression models were used to identify factors significantly associated with the outcome variables. RESULTS: Rates of binge drinking (45%), drinking and driving (19%), and riding with a driver who had been drinking (46%) were higher for our study population when compared with state and national rates. Students who consumed alcohol were more likely to report alcohol-related problems and lower academic grades. Drinking while in Mexico was significantly associated with binge drinking (OR = 6.44), drinking and driving (OR = 5.39), and riding with a driver who has been drinking (OR = 3.12). CONCLUSIONS: The high rates of alcohol risk behaviors among students living on the U.S.-Mexico border underscore the need to develop and implement culturally appropriate prevention programs that address alcohol consumption in Mexico, particularly in terms of students driving back home.