Table 3.
Unadjusted and adjusteda odds of UL by quartile of serum OH(25)D.
| Vitamin D | Cases/n | OR (95%CI) | Adjusted OR (95% CI) | |
| Whole Population | ||||
| Continuousb | 469/3590 | 0.76 (0.65, 0.90)* | 1.17 (0.89, 1.55) | |
| Q1 (3.0–17.0 ng/mL) | 192/1227 | Reference | Reference | |
| Q2 (18.0–24.0 ng/mL) | 127/943 | 1.08 (0.79, 1.46) | 1.33 (0.94, 1.89) | |
| Q3 (25.0–30.0 ng/mL) | 87/691 | 1.07 (0.84, 1.35) | 1.42 (0.97, 2.07) | |
| Q4 (31.0–80.0 ng/mL) | 63/729 | 0.66 (0.50, 0.88)* | 1.18 (0.81, 1.72) | |
| Ptrend < 0.01* | Ptrend = 0.37 | |||
| Highest Q | Lowest 3 Q | OR (95%CI) | AORc (95%CI) | |
| Highest v Lowest 3 Q | 63/729 | 406/2861 | 0.63 (0.49, 0.82)* | 0.91 (0.67, 1.23) |
| Premenopausal Women | ||||
| Continuousb | 218/2873 | 0.69 (0.52, 0.92)* | 1.09 (0.67, 1.78) | |
| Q1 (3.0–17.0 ng/mL) | 93/945 | Reference | Reference | |
| Q2 (18.0–24.0 ng/mL) | 60/737 | 0.94 (0.63, 1.41) | 1.07 (0.66, 1.74) | |
| Q3 (25.0–30.0 ng/mL) | 35/567 | 0.88 (0.62, 1.26) | 1.13 (0.68, 1.87) | |
| Q4 (31.0–80.0 ng/mL) | 30/624 | 0.59 (0.36, 0.94)* | 1.05 (0.58, 1.91) | |
| Ptrend = 0.01* | Ptrend = 0.82 | |||
| Highest Q | Lowest 3 Q | OR (95%CI) | AORc (95%CI) | |
| Highest v Lowest 3 Q | 30/624 | 188/2249 | 0.62 (0.40, 0.97)* | 0.97 (0.62, 1.53) |
a
Adjusted models control for race, age, parity, BMI, season, and physical activity
b
Continuous odds ratios calculated using log-transformed serum OH(25)D, and represent the change in odds of UL for each natural log-unit increase in OH(25)D.
c
AOR: Adjusted Odds Ratio
*
p < 0.05