Table 5 Total bone mineral density by quartiles of serum 25(OH)D level, stratified by race/ethnicity and age
From: Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
Quartiles of 25(OH)D level | White | Black | Mexican American | Other race |
|---|---|---|---|---|
Total BMD g/cm2 (95% Confidence Interval) | ||||
12 to 15 years | ||||
Lowest quartile | 0.975 (0.929, 1.022) | 1.064 (1.054, 1.074) | 0.996 (0.979, 1.013) | 1.027 (0.996, 1.058) |
2nd | 0.994 (0.973, 1.015) | 1.068 (1.056, 1.079) | 0.994 (0.982, 1.007) | 0.993 (0.970, 1.016) |
3rd | 1.013 (1.001, 1.025) | 1.061 (1.048, 1.075) | 1.012 (1.002, 1.023) | 1.000 (0.981, 1.020) |
Highest quartile | 1.011 (1.002, 1.020) | 1.071 (1.052, 1.090) | 1.014 (1.000, 1.027) | 1.050 (1.026, 1.074) |
P for trend | 0.134 | 0.780 | 0.024 | 0.079 |
16 to 19 years | ||||
Lowest quartile | 1.106 (1.073, 1.139) | 1.212 (1.204, 1.220) | 1.107 (1.094, 1.120) | 1.135 (1.107, 1.162) |
2nd | 1.126 (1.106, 1.146) | 1.203 (1.191, 1.215) | 1.109 (1.098, 1.119) | 1.153 (1.128, 1.178) |
3rd | 1.127 (1.115, 1.140) | 1.198 (1.182, 1.215) | 1.115 (1.104, 1.125) | 1.136 (1.115, 1.157) |
Highest quartile | 1.144 (1.136, 1.152) | 1.210 (1.188, 1.232) | 1.140 (1.128, 1.152) | 1.160 (1.136, 1.185) |
P for trend | 0.003 | 0.262 | < 0.001 | 0.347 |