Table 2.
Distributions of vitamin D status by race/ethnicity (n = 1114), BACH/Bone Survey, 2002–2005
| Variable | Race/ethnicity
|
P value | ||
|---|---|---|---|---|
| Black | Hispanic | White | ||
| Mean 25(OH)D ± sd (ng/ml) | 25.0 ± 14.7a,b | 32.9 ± 13.9b | 37.4 ± 14.0 | <0.001 |
| 25(OH)D quartiles (ng/ml) | <0.001 | |||
| Q1: 25(OH)D ≤ 20.8 | 44.4a,b | 23.1b | 11.4 | |
| Q2: 20.8 < 25(OH)D ≤ 31.3 | 25.6 | 24.5 | 27.2 | |
| Q3: 31.3 < 25(OH)D ≤ 42.7 | 18.2 | 30.8 | 28.5 | |
| Q4: 25(OH)D > 42.7 | 11.7 | 21.6 | 32.9 | |
Means, sd, and percentages were adjusted inversely to the probability of selection. P values are from F-test for βBlack = βHispanic = 0 (continuous variables) where White men serve as the reference group or χ2 test of independence (categorical variables). To convert 25(OH)D to nmol/liter, multiply values by 2.496.
a
P < 0.05 vs. Hispanic from an individual test comparing the mean/frequency in Black men to the mean/frequency in Hispanic men.
b
P < 0.05 vs. White from an individual test comparing the mean/frequency in Black men or Hispanic men to the mean/frequency in White men.