Table 5.
Associations among factors influencing UV radiation and maternal serum vitamin D level. Data collection form (Additional file 1)
| Exposure | Outcome | cOR (95% CI) | p-value | aOR (95% CI) | p-value |
|---|---|---|---|---|---|
| TBSA (m2) exposed to sun | normal | ref | |||
| deficiency | 1.89E-107 (2.24E-204 - 1.6E-10) | 0.03 | 3.76E-93 (1.39E-226 - 1.02E+41) | 0.18 | |
| insufficiency | 3.22E-22 (3.35E-124 - 3.12E+80) | 0.68 | 2.14-16 (3.97E-152 - 1.15E+120) | 0.82 | |
| Percentage of body area exposed to sun | normal | ref | |||
| deficiency | 0.93 (0.87-0.99) | 0.02 | 0.94 (0.86-1.02) | 0.12 | |
| insufficiency | 0.99 (0.93-1.05) | 0.69 | 0.99 (0.91-1.08) | 0.83 | |
| UVB intensity (MED/hour) | normal | ref | |||
| deficiency | 0.74 (0.23-2.4) | 0.23 | 1.85 (0.26-13.13) | 0.54 | |
| insufficiency | 1.23 (0.37-4.13) | 0.37 | 2.98 (0.41-21.49) | 0.28 |
cOR crude odds ratio
aOR adjusted odds ratio by age, parity, pre-pregnancy BMI, education, and the use of sunscreen