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Maximum Lifetime Body Mass Index and Mortality in Mexican American Adults: the National Health and Nutrition Examination Survey III (1988-1994) and NHANES 1999-2010.

ABSTRACT: Studies in US Hispanic adults indicate no deleterious association between obesity and death. We tested the hypothesis that accounting for weight history would provide more insight into this nonassociation.We used the National Health and Nutrition Examination Survey (NHANES) to examine associations between maximum lifetime body mass index (BMI) and all-cause and cause-specific mortality among US-residing Mexican American adults. BMI was classified as underweight (<18.5 kg/m2), normal weight (18.5-24.9), overweight (25.0-29.9), obese class I (30.0-34.9), and obese class II (≥35.0). We used Cox proportional hazards to examine the association between maximum lifetime BMI and BMI at survey and all-cause and specific causes of death (ie, cardiovascular disease, cancer, diabetes, and other) controlling for age, sex, and smoking in 6,242 Mexican American adults enrolled in NHANES III (1988-1994) and NHANES 1999-2010.Mexican Americans categorized as obese class II at maximum lifetime and time of survey had increased risk of all-cause mortality (hazard ratio [HR], 2.12; 95% confidence interval [CI], 1.54 - 2.93 and HR, 1.52; 95% CI, 1.10-2.10). Those reporting a maximum lifetime BMI of class I or class II obesity but who were classified as normal weight at survey had increased risk of all-cause mortality (HR = 2.49; 95% CI, 1.72-3.61 and HR = 3.56; 95% CI, 1.15-11.06, respectively).Increased all-cause mortality risk in Mexican Americans with a lifetime BMI of 35 or greater refutes prior studies, suggesting that maximum lifetime BMI should be included when evaluating obesity-mortality associations in this population.

SUBMITTER: Howell CR

PROVIDER: S-EPMC5566831 | biostudies-other | 2017 Aug

REPOSITORIES: biostudies-other

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Secular trends in regional differences in nutritional biomarkers and self-reported dietary intakes among American adults: National Health and Nutrition Examination Survey (NHANES) 1988-1994 to 2009-2010.

Project description:ObjectiveTo understand the contribution of regional differentials in dietary exposures to regional gradients in health, we examined 20-year trends in the association of US census region of residence with nutritional biomarkers and dietary intakes of American adults.DesignObservational.SettingThe biomarker and 24 h dietary recall data were from the National Health and Nutrition Examination Surveys (NHANES) conducted during 1988-1994 and 1999-2010. The US census region was operationalized as Northeast, Midwest, South and West. Nutritional biomarker outcomes were serum folate, vitamins B6, B12, C, D and E, and carotenoids; dietary outcomes were intakes of nutrients, food groups and eating patterns.SubjectsUS adults, n>8000-40 000 for biomarkers and >43 000 for dietary outcomes.ResultsThe interactions of survey time period and region were not significant for the examined biomarker and dietary outcomes, indicating similar secular trends among regions. The main effect of region was significant for all nutritional biomarkers except serum vitamin B6, most dietary micronutrients, food groups and eating patterns (P<0·001). The mean serum folate, vitamins B12, C and E, and all carotenoid (except lycopene) biomarker levels, and intakes of dietary fibre, vitamins A, E, C and B6, folate, K, Ca, Mg and Fe, fruits, vegetables and whole grains, were higher in the West and Northeast regions, relative to the South and Midwest regions.ConclusionsOverall, the regional gradients in dietary exposure, expressed objectively as biomarkers or as self-reported nutrient and food group intakes, paralleled trajectories reported for health outcomes and were remarkably persistent over time.

| S-EPMC6204125 | biostudies-literature

Environment-wide association study to comprehensively test and validate associations between nutrition and lifestyle factors and testosterone deficiency: NHANES 1988-1994 and 1999-2004.

Project description:PurposeTestosterone (T) plays an important role in men's health and its deficiency is linked with poorer health. However, the role of nutritional and lifestyle factors in T regulation and production remains unclear. The objectives are to comprehensively test the cross-sectional associations of nutritional and lifestyle factors with T deficiency and to validate the associations in the NHANES survey.MethodsWe performed weighted multivariable logistic regression analysis to examine the association of 173 nutritional and lifestyle factors with T deficiency (total testosterone ≤ 3.5 ng/mL) in NHANES III as the discovery set (mean age 41). We controlled for multiple comparisons with a false discovery rate (FDR) < 5% and replicated in NHANES 1999-2004 (mean age 44).ResultsWe identified seven nutritional factors as being inversely associated with T deficiency in NHANES 1999-2004, namely dietary intake of vitamin A, protein, saturated fatty acids, monounsaturated fatty acids, total fats, saturated fatty acid 16:0, and phosphorus. In a multivariable model, only vitamin A intake remained significantly associated with T deficiency (OR 0.97, 95% CI 0.94-0.99). Principal component analysis suggested that the two principal components, (1) dietary fats, protein, and phosphorous and (2) total vitamin A, may be associated with T deficiency.ConclusionOur systematic evaluation provided new insight into the modifiable factors that could play a role in the regulation of T production. This study has the potential to contribute to the current body of literature which seeks to formulate a clinical definition of T deficiency after taking into account nutritional and lifestyle factors.

| S-EPMC7323003 | biostudies-literature

Trends in prevalence and control of diabetes in the United States, 1988-1994 and 1999-2010.

Project description:Trends in the prevalence and control of diabetes defined by hemoglobin A1c (HbA1c) levels are important for health care policy and planning.To update trends in the prevalence of diabetes, prediabetes, and glycemic control.Cross-sectional.NHANES (National Health and Nutrition Examination Survey) in 1988-1994 and 1999-2010.Adults aged 20 years or older.We used calibrated HbA1c levels to define undiagnosed diabetes (?6.5%); prediabetes (5.7% to 6.4%); and, among persons with diagnosed diabetes, glycemic control (<7.0% or <8.0%). Trends in HbA1c categories were compared with fasting glucose levels (?7.0 mmol/L [?126 mg/dL] and 5.6 to 6.9 mmol/L [100 to 125 mg/dL]).In 2010, approximately 21 million U.S. adults aged 20 years or older had total confirmed diabetes (self-reported diabetes or diagnostic levels for both fasting glucose and calibrated HbA1c). During 2 decades, the prevalence of total confirmed diabetes increased, but the prevalence of undiagnosed diabetes remained fairly stable, reducing the proportion of total diabetes cases that are undiagnosed to 11% in 2005-2010. The prevalence of prediabetes was lower when defined by calibrated HbA1c levels than when defined by fasting glucose levels but has increased from 5.8% in 1988-1994 to 12.4% in 2005-2010 when defined by HbA1c levels. Glycemic control improved overall, but total diabetes prevalence was greater and diabetes was less controlled among non-Hispanic blacks and Mexican Americans compared with non-Hispanic whites.Cross-sectional design.Over the past 2 decades, the prevalence of total diabetes has increased substantially. However, the proportion of undiagnosed diabetes cases decreased, suggesting improvements in screening and diagnosis. Among the growing number of persons with diagnosed diabetes, glycemic control improved but remains a challenge, particularly among non-Hispanic blacks and Mexican Americans.National Institutes of Health.

| S-EPMC4442608 | biostudies-literature

Ultra-processed food intake and mortality in the USA: results from the Third National Health and Nutrition Examination Survey (NHANES III, 1988-1994).

Project description:ObjectiveTo evaluate the association between ultra-processed food intake and all-cause mortality and CVD mortality in a nationally representative sample of US adults.DesignProspective analyses of reported frequency of ultra-processed food intake in 1988-1994 and all-cause mortality and CVD mortality through 2011.SettingThe Third National Health and Nutrition Examination Survey (NHANES III, 1988-1994).ParticipantsAdults aged ≥20 years (n 11898).ResultsOver a median follow-up of 19 years, individuals in the highest quartile of frequency of ultra-processed food intake (e.g. sugar-sweetened or artificially sweetened beverages, sweetened milk, sausage or other reconstructed meats, sweetened cereals, confectionery, desserts) had a 31% higher risk of all-cause mortality, after adjusting for demographic and socio-economic confounders and health behaviours (adjusted hazard ratio=1·31; 95% CI 1·09, 1·58; P-trend = 0·001). No association with CVD mortality was observed (P-trend=0·86).ConclusionsHigher frequency of ultra-processed food intake was associated with higher risk of all-cause mortality in a representative sample of US adults. More longitudinal studies with dietary data reflecting the modern food supply are needed to confirm our results.

| S-EPMC6554067 | biostudies-literature

Closing the gap in hypertension control between younger and older adults: National Health and Nutrition Examination Survey (NHANES) 1988 to 2010.

Project description:Joint National Committee goal blood pressure for all adults was <140/<90 mm Hg or lower from 1984 to 2013. Adults aged ?60 years (older) have mainly isolated systolic hypertension, with major trials attaining systolic blood pressure <150 but not <140 mm Hg. The main objective was to assess changes in hypertension control to <140/<90 mm Hg in younger (aged <60 years) and older adults and <150/<90 mm Hg in the latter.National Health and Nutrition Examination Surveys (NHANES) 1988 to 1994, 1999 to 2004, and 2005 to 2010 were analyzed in adults aged ?18 years. From 1988 to 1994 to 2005 to 2010, hypertension control to <140/<90 mm Hg improved in older (31.6% to 53.1%; P<0.001) and younger (45.7% to 55.9%; P<0.001) patients. The age gap in control declined from 14.1% (P<0.01) in 1988 to 1994 to 2.8% (P=0.13) in 2005 to 2010. Better hypertension control reflected increased percentages of older (55.6% to 77.5%) and younger (34.6% to 54.7%) patients on treatment and treated older (45.7% to 64.9%) and younger (56.8% to 73.4%) patients controlled (all P<0.001). Control to <150/<90 mm Hg rose from 48.8% to 69.9% in older adults. Antihypertensive medication number and percentages on ?3 medications increased in both age groups but increased more in older patients (P<0.01). Blood pressure control was higher in both age groups with ?2 healthcare visits per year and on statin therapy.The age gap in hypertension control to <140/<90 mm Hg was virtually eliminated in 2005 to 2010 as clinicians intensified therapy, especially in older patients in whom isolated systolic hypertension predominates, controlling 70% to <150/<90 mm Hg. More frequent healthcare visits and the use of statin therapy may improve hypertension control in all adults.

| S-EPMC4413456 | biostudies-other

Trends in calcium supplementation, National Health and Nutrition Examination Survey (NHANES) 1999-2014.

Project description:BACKGROUND:Long-term outcomes of supplemental calcium are inadequately understood. Recent research suggests that calcium from supplements may not be entirely free from unintended health consequences. Consequently, it is important to understand patterns and trends in use of calcium supplements. OBJECTIVE:To report trends in supplemental calcium intake between 1999 and 2014, using NHANES data, overall and stratified by sex, race/ethnicity and age. METHODS:A total of 42,038 adult NHANES participants were included in this analysis. For each survey period, we calculated the prevalence of calcium supplement use exceeding the Estimated Average Requirement (EAR) and Tolerable Upper Intake Levels (UL), and mean daily supplemental calcium dose among calcium-containing supplement users. Sample weights were applied. Linear regression was used to examine trends. RESULTS:Overall, the prevalence of calcium supplement use at a dose ?EAR increased between 1999 and 2000 and 2013-2014, from 2.5% (95% CI: 1.9-3.3%) to 4.6% (3.8-5.5%). Use ?EAR peaked in 2003-2004 at 6.7% (5.3-8.5%) (p-quadratic trend<0.001). Mean supplemental calcium intake peaked in 2007-2008, thereafter decreasing (p-quadratic trend<0.001). The overall prevalence of intake ?UL from supplemental calcium in 2013-2014 was 0.4% (0.2-0.8%). Use of supplemental calcium ?UL peaked during 2007-2008 at 1.2% (0.7-2.0%). In all time periods, supplemental calcium intake tended to be greater among women, non-Hispanic whites and adults >60years. CONCLUSIONS:We described the prevalence of U.S. adults consuming supplemental calcium ?UL and ? EAR. While few were consuming supplemental calcium ?UL, consumption ?EAR was not uncommon, especially among women, non-Hispanic whites and older adults.

| S-EPMC5924724 | biostudies-literature

Prevalence of Airflow Obstruction in U.S. Adults Aged 40-79 Years: NHANES Data 1988-1994 and 2007-2010.

Project description:The study evaluated the change in the prevalence of airflow obstruction in the U.S. population 40-79 years of age from years 1988-1994 to 2007-2010.Spirometry data from two representative samples of the U.S. population, the National Health and Nutrition Examination Surveys (NHANES) conducted in 1988-1994 and 2007-2010, were used. The American Thoracic Society/European Respiratory Society (ATS/ERS) criteria were used to define airflow obstruction.Based on ATS/ERS criteria, the overall age-adjusted prevalence of airflow obstruction among adults aged 40-79 years decreased from 16.6% to 14.5% (p < 0.05). Significant decreases were observed for the older age category 60-69 years (20.2% vs. 15.4%; p < 0.01), for males (19.0% vs. 15.4%; p < 0.01), and for Mexican American adults (12.7% vs. 8.4%; p < 0.001). The prevalence of moderate and more severe airflow obstruction decreased also (6.4% vs. 4.4%; p < 0.01). Based on ATS/ERS criteria, during 2007-2010, an estimated 18.3 million U.S. adults 40-79 years had airflow obstruction, 5.6 million had moderate or severe airflow obstruction and 1.4 million had severe airflow obstruction.The overall age-adjusted prevalence of airflow obstruction among U.S. adults aged 40-79 years decreased from 1988-1994 to 2007-2010, especially among older adults, Mexican Americans, and males.

| S-EPMC5567729 | biostudies-other

Menthol cigarettes, race/ethnicity, and biomarkers of tobacco use in U.S. adults: the 1999-2010 National Health and Nutrition Examination Survey (NHANES).

Project description:In the United States, cigarette flavorings are banned, with the exception of menthol. The cooling effects of menthol could facilitate the absorption of tobacco toxicants. We examined levels of biomarkers of tobacco exposure among U.S. smokers of menthol and nonmenthol cigarettes.We studied 4,603 White, African-American, and Mexican-American current smokers 20 years of age or older who participated in the National Health and Nutrition Examination Survey (NHANES) from 1999 through 2010 and had data on cigarette type and serum cotinine, blood cadmium, and blood lead concentrations. Urinary total 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol) (NNAL) was studied in 1,607 participants with available measures.A total of 3,210 (74.3%) participants smoked nonmenthol cigarettes compared with 1,393 (25.7%) participants who smoked menthol cigarettes. The geometric mean concentrations comparing smokers of nonmenthol with menthol cigarettes were 163.1 versus 175.9 ng/mL for serum cotinine; 0.95 versus 1.02 ?g/L for blood cadmium; 1.87 versus 1.75 ?g/dL for blood lead; and 0.27 versus 0.23 ng/mL for urine NNAL. After multivariable adjustment, the ratios [95% confidence interval (CI)] comparing smokers of menthol with nonmenthol cigarettes were 1.03 (0.95-1.11) for cotinine, 1.10 (1.04-1.16) for cadmium, 0.95 (0.90-1.01) for lead, and 0.81 (0.65-1.01) for NNAL.In a representative sample of U.S. adult smokers, current menthol cigarette use was associated with increased concentration of blood cadmium, an established carcinogen and highly toxic metal, but not with other biomarkers.These findings provide information regarding possible differences in exposure to toxic constituents among menthol cigarette smokers compared with nonmenthol cigarette smokers.

| S-EPMC3565051 | biostudies-literature

Does the Immigrant Advantage in Overweight/Obesity Persist over Time in Mexican American Youth? NHANES 1988-1994 to 2005-2014.

Project description:OBJECTIVE:To examine whether the relationship between nativity and overweight/obesity has changed over time among Mexican American children and to investigate the implications of this pattern on overweight/obesity disparities relative to non-Hispanic white children. METHODS:Using cross-sectional data from Mexican American and non-Hispanic white children aged 4 to 17 years participating in the National Health and Nutrition Examination Surveys (1988-1994 [N = 4,720] and 2005-2014 [N = 7,275]) log-binomial regression was used to calculate prevalence ratios (PRs) of overweight/obesity by nativity status adjusting for sociodemographic covariates, survey period, and a nativity-by-survey period interaction. A separate covariate-adjusted model tested a three-level interaction between ethnicity, nativity, and survey period that included non-Hispanic white children. RESULTS:In 1988-1994, foreign-born Mexican Americans had significantly lower prevalence of overweight/obesity compared with US-born Mexican Americans (PR = 0.75, 95% CI: 0.61-0.94). However, by 2005-2014, the nativity gap in overweight/obesity had closed (PR = 0.94, 95% CI: 0.84-1.07). Moreover, while foreign-born Mexican Americans had the lowest levels of overweight/obesity in 1988-1994, by 2005-2014, foreign-born and US-born Mexican Americans had comparable estimates, both significantly higher than that of non-Hispanic white individuals. CONCLUSIONS:Although overweight/obesity disparities between Mexican Americans and non-Hispanic white Americans had previously been specific to US-born Mexican Americans, disparities in more recent years have extended to foreign-born Mexican Americans.

| S-EPMC5975978 | biostudies-literature

Trends in Cardiovascular Health Metrics in Obese Adults: National Health and Nutrition Examination Survey (NHANES), 1988-2014.

Project description:BackgroundNo study has quantified trends in the prevalence of cardiovascular disease risk factors and cardiovascular health metrics among obese people in the United States in recent years.Methods and resultsWe examined the secular changes in cardiovascular health metrics and key cardiovascular disease risk factors among obese adults (aged ?20 years) in the United States. We included 18 626 obese adults (body mass index ?30) from the National Health and Nutrition Examination Survey (NHANES) III and NHANES 1999-2014. Among those obese adults, there were decreases in mean systolic blood pressure, diastolic blood pressure, and total cholesterol levels and increases in mean high-density lipoprotein cholesterol levels and mean hemoglobin A1c levels. Prevalence of blood pressure health and lipid health remained stable during the period 1988-2014, whereas prevalence of blood glucose health decreased significantly during this period. Prevalence of freedom from cardiovascular disease risk factors remained stable at ?15% among the adult obese population during the period 1988-2014, whereas prevalence of presence of all 3 risk factors increased from 16.4% to 22.4% during this period, commensurate with a decline in those with 1 to 2 risk factors (from 69.6% to 62.4%).ConclusionsDuring the past 3 decades, blood pressure health and blood lipid health remained stable or improved, whereas blood glucose health deteriorated among adult obese population. This resulted in an overall decrease in cardiovascular health status among obese adults and greater risk of type 2 diabetes mellitus. The data argue for interventions targeted to those obese persons who are metabolically unhealthy to stem rising rates of diabetes mellitus.

| S-EPMC5015398 | biostudies-literature

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