Table 3.
Circulating 25(OH)D, nmol/L |
Ptrend | |||||||||||||||||||||||
<25 |
25–<37.5 |
37.5–<50 |
50–<75a |
75–<100 |
≥100 |
|||||||||||||||||||
No. of Cases | No. of Controls | OR | 95% CI | No. of Cases | No. of Controls | OR | 95% CI | No. of Cases | No. of Controls | OR | 95% CI | No. of Cases | No. of Controls | OR | No. of Cases | No. of Controls | OR | 95% CI | No. of Cases | No. of Controls | OR | 95% CI | ||
All subjectsb | 241 | 252 | 248 | 239 | 224 | 223 | 249 | 252 | 83 | 77 | 20 | 23 | ||||||||||||
Crude | 0.96 | 0.72, 1.28 | 1.04 | 0.80, 1.37 | 1.02 | 0.79, 1.33 | 1.0 | 1.09 | 0.76, 1.57 | 0.88 | 0.45, 1.70 | 0.79 | ||||||||||||
Multivariate adjusted | 0.90 | 0.65, 1.24 | 1.03 | 0.76, 1.39 | 0.92 | 0.69, 1.23 | 1.0 | 1.17 | 0.79, 1.75 | 0.81 | 0.39, 1.69 | 0.54 | ||||||||||||
All subjects, winterc | 183 | 202 | 161 | 136 | 105 | 110 | 83 | 80 | 24 | 25 | 4 | 3 | ||||||||||||
Crude | 0.89 | 0.60, 1.32 | 1.16 | 0.78, 1.74 | 0.93 | 0.62, 1.42 | 1.0 | 0.96 | 0.50, 1.84 | 1.20 | 0.24, 5.94 | 0.71 | ||||||||||||
Multivariate adjusted | 0.87 | 0.57, 1.31 | 1.13 | 0.74, 1.72 | 0.89 | 0.58, 1.38 | 1.0 | 0.82 | 0.41, 1.65 | 0.97 | 0.17, 5.43 | 0.81 | ||||||||||||
All subjects, summerc | 58 | 50 | 87 | 103 | 119 | 113 | 166 | 172 | 59 | 52 | 16 | 20 | ||||||||||||
Crude | 1.18 | 0.75, 1.87 | 0.86 | 0.60, 1.25 | 1.07 | 0.76, 1.51 | 1.0 | 1.17 | 0.76, 1.81 | 0.83 | 0.41, 1.69 | 1.00 | ||||||||||||
Multivariate adjusted | 0.90 | 0.55, 1.46 | 0.79 | 0.53, 1.17 | 0.98 | 0.68, 1.40 | 1.0 | 1.30 | 0.82, 2.06 | 0.83 | 0.40, 1.74 | 0.23 | ||||||||||||
Menb | 177 | 190 | 176 | 152 | 149 | 155 | 190 | 193 | 63 | 65 | 20 | 21 | ||||||||||||
Crude | 0.95 | 0.68, 1.33 | 1.19 | 0.86, 1.63 | 0.99 | 0.72, 1.34 | 1.0 | 0.97 | 0.64, 1.47 | 0.95 | 0.48, 1.89 | 0.85 | ||||||||||||
Multivariate adjusted | 0.89 | 0.61, 1.31 | 1.23 | 0.85, 1.76 | 0.87 | 0.62, 1.24 | 1.0 | 1.03 | 0.65, 1.64 | 0.88 | 0.41, 1.89 | 0.97 | ||||||||||||
Womenb | 64 | 62 | 72 | 87 | 75 | 68 | 59 | 59 | 20 | 12 | 0 | 2 | ||||||||||||
Crude | 0.98 | 0.55, 1.73 | 0.79 | 0.46, 1.34 | 1.10 | 0.66, 1.83 | 1.0 | 1.83 | 0.81, 4.14 | 0.39 | ||||||||||||||
Multivariate adjusted | 0.88 | 0.47, 1.65 | 0.78 | 0.44, 1.38 | 0.96 | 0.56, 1.67 | 1.0 | 1.79 | 0.74, 4.33 | 0.34 |
Abbreviations: CI, confidence interval; 25(OH)D, 25-hydroxyvitamin D; OR, odds ratio.
Reference category.
Conditional logistic regression models were matched on cohort, race, sex, and date of blood draw without or with further adjustment for alcohol drinking, smoking, education, and history of gastric surgery.
Unconditional logistic regression models were adjusted for the matching factors cohort, race, sex, and date of blood draw without or with further adjustment for alcohol drinking, smoking, education, and history of gastric surgery.