The distribution of baseline characteristics in the study population after applying samples weights is shown in Table 1 . The mean age was 49 years, and the majority of the participants were white (54%). The prevalence of overweight and obesity based on BMI ≥25– and ≥30 kg/m 2 , respectively, was % and %. Fifty-one percent of the participants were hypertensive and % were diabetic. Twenty-six percent of the participants had some college and % had a high school diploma or GED equivalent, % were current smokers, % performed moderate physical activity, while a % reported a vigorous physical activity. Mean value for serum cotinine was ng/mL, gm for total water intake, kcal for energy, gm for alcohol and mg/d for total caffeine intake. Caffeinated beverages showed % for coffee, % for tea, % for total soda, and % for energy and sport drinks.
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