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Table 1 Population Characteristics of U.S. Adults (≥20 years) in NHANES 2001–2010

From: Standardized serum 25-hydroxyvitamin D concentrations are inversely associated with cardiometabolic disease in U.S. adults: a cross-sectional analysis of NHANES, 2001–2010

  All (N = 7674) Mexican Americans (N = 1794) Non-Hispanic Whites (N = 4289) Non-Hispanic Blacks (N = 1591) *P-value
Age (years) 45.3 44.7, 45.9 38.7 37.8, 39.6 46.6 45.9, 47.3 41.7 40.9, 42.6 <0.0001
BMI (kg/m2) 28.5 28.3, 28.6 28.8 28.5, 29.2 28.2 27.9, 28.4 30.1 29.7, 30.5 <0.0001
WC (cm) 97.7 97.3, 98.2 97.1 96.2, 98.0 97.8 97.2, 98.3 98.3 97.3, 99.3 0.225
25(OH)D (nmol/L) 65.5 64.2, 66.9 53.9 52.4, 55.4 70.2 68.9, 71.5 42.2 40.3, 44.0 <0.0001
Winter a 59.4 57.6, 61.3 52.3 50.6, 54.0 65.8 63.9, 67.8 39.8 38.2, 41.3 <0.0001
Summer b 69.4 67.9, 70.9 58.4 55.8, 60.9 72.3 70.8, 73.8 44.9 41.8, 48.1 <0.0001
Supplement nonusers 62.5 61.0, 64.0 52.9 51.3, 54.4 67.4 65.9, 69.0 39.9 38.1, 41.7 <0.0001
Supplement users 75.9 74.2, 77.5 60.5 58.2, 62.7 78.5 76.9, 80.2 55.4 50.8, 59.9 <0.0001
Vitamin D Supplement Use (%) 22.5 21.0, 24.1 13 11.0, 15.0 24.8 22.8, 26.7 14.7 12.1, 17.3 <0.0001
HOMAIR 3.06 2.97, 3.16 3.76 3.52, 4.00 2.93 2.81, 3.05 3.4 3.20, 3.59 <0.0001
MetS (%) 36.1 34.6, 37.6 34.8 31.5, 38.1 36.9 35.0, 38.8 31.6 29.0, 34.0 <0.01
Absolute CVD risk (%) 7.92 7.63, 8.20 5.85 5.40, 6.31 8.26 7.93, 8.59 7.19 6.77, 7.61 <0.0001
Self-reported Diabetes (%) 7.4 6.69, 8.10 8.76 7.33, 10.2 6.85 5.97, 7.74 10.1 8.42, 11.8 <0.01
Self reported CVD (%) 6.34 5.61, 7.08 3.66 2.60, 4.71 6.66 5.79, 7.53 6.34 5.10, 7.59 <0.0001
Medication Use (%)          
Blood Pressure 22.2 20.8, 23.7 9.88 8.26, 11.5 23.4 21.7, 25.1 24.2 22.1, 26.4 <0.0001
Lipid 13.4 12.2, 14.5 6.06 4.65, 7.47 15 13.6, 16.3 8.31 6.90, 9.71 <0.0001
Diabetes 5.2 4.58, 5.82 6.12 5.00, 7.24 4.8 4.06, 5.55 7.24 5.85, 8.61 <0.01
Current smokers (%) 23.8 22.3, 25.4 19.1 16.7, 21.4 24.2 22.4, 26.1 24.8 22.2, 27.4 <0.01
Education (% College) 58 55.8, 60.2 28.1 25.0, 31.1 62.6 59.7, 65.4 50.5 47.5, 53.4 <0.0001
  1. Values are weighted means or frequencies (%), and 95% CIs. *P values are based on Wald F-Test or Chi-square test, which test the independence of means and frequencies across ethnic groups
  2. a Participants sampled from November–April. b Participants sampled from May–October