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Table 1—

25OHD levels by sex, age, ethnicity, BMI, leisure time physical activity, and season, adjusted for all other variables in the table

Variablen (%)25OHD (nmol/l)P
Sex    
    Men 2,939 (47.2) 78.8 ± 0.9 * 
    Women 3,289 (52.8) 72.6 ± 0.8 <0.0001 
Age (years)    
    20–39 2,693 (43.2) 81.0 ± 1.1 * 
    40–59 1,704 (27.4) 71.7 ± 1.0 <0.0001 
    ≥60 1,831 (29.4) 69.5 ± 0.9 <0.0001 
Race/ethnicity    
    Non-Hispanic white 2,766 (44.4) 79.6 ± 0.7 * 
    Non-Hispanic black 1,736 (27.9) 49.1 ± 0.9 <0.0001 
    Mexican American 1,726 (27.7) 66.0 ± 1.0 <0.0001 
BMI quartile (kg/m2   
    ≤23.0 1,550 (24.9) 80.6 ± 1.2 * 
    23.1–26.1 1,549 (24.9) 77.1 ± 1.0 0.025 
    26.2–29.9 1,577 (25.3) 73.8 ± 1.2 0.0001 
    ≥30.0 1,552 (24.9) 68.7 ± 1.3 <0.0001 
Leisure time physical activity (times in last month)    
    None 1,269 (20.4) 68.4 ± 1.5 * 
    Moderate <12 1,741 (28.0) 72.4 ± 0.9 0.009 
    Moderate ≥12 2,229 (35.8) 79.1 ± 1.0 <0.0001 
    Vigorous <12 645 (10.4) 75.7 ± 2.1 0.007 
    Vigorous ≥12 344 (5.5) 81.4 ± 1.4 <0.0001 
Season    
    January to March 1,614 (25.9) 67.8 ± 1.6 * 
    April to June 1,649 (26.5) 73.2 ± 1.2 0.014 
    July to September 1,516 (24.3) 81.7 ± 1.5 <0.0001 
    October to December 1,449 (23.3) 74.7 ± 1.5 0.002 
Total 6,228 (100)   
Variablen (%)25OHD (nmol/l)P
Sex    
    Men 2,939 (47.2) 78.8 ± 0.9 * 
    Women 3,289 (52.8) 72.6 ± 0.8 <0.0001 
Age (years)    
    20–39 2,693 (43.2) 81.0 ± 1.1 * 
    40–59 1,704 (27.4) 71.7 ± 1.0 <0.0001 
    ≥60 1,831 (29.4) 69.5 ± 0.9 <0.0001 
Race/ethnicity    
    Non-Hispanic white 2,766 (44.4) 79.6 ± 0.7 * 
    Non-Hispanic black 1,736 (27.9) 49.1 ± 0.9 <0.0001 
    Mexican American 1,726 (27.7) 66.0 ± 1.0 <0.0001 
BMI quartile (kg/m2   
    ≤23.0 1,550 (24.9) 80.6 ± 1.2 * 
    23.1–26.1 1,549 (24.9) 77.1 ± 1.0 0.025 
    26.2–29.9 1,577 (25.3) 73.8 ± 1.2 0.0001 
    ≥30.0 1,552 (24.9) 68.7 ± 1.3 <0.0001 
Leisure time physical activity (times in last month)    
    None 1,269 (20.4) 68.4 ± 1.5 * 
    Moderate <12 1,741 (28.0) 72.4 ± 0.9 0.009 
    Moderate ≥12 2,229 (35.8) 79.1 ± 1.0 <0.0001 
    Vigorous <12 645 (10.4) 75.7 ± 2.1 0.007 
    Vigorous ≥12 344 (5.5) 81.4 ± 1.4 <0.0001 
Season    
    January to March 1,614 (25.9) 67.8 ± 1.6 * 
    April to June 1,649 (26.5) 73.2 ± 1.2 0.014 
    July to September 1,516 (24.3) 81.7 ± 1.5 <0.0001 
    October to December 1,449 (23.3) 74.7 ± 1.5 0.002 
Total 6,228 (100)   

Data are means ± SE unless otherwise indicated. Based on those who attended NHANES III morning examination, fasted >8 h (excluding diagnosed diabetes), and age ≥20 years.

*

Reference category for P value.

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