Table 2.
Association between dietary Vitamin E and osteoporosis.
| Variable | OR (95% CI) | P value | ||||
|---|---|---|---|---|---|---|
| Quartile 1 (≤4.08) |
Quartile 2 (4.09–6.48) |
Quartile 3 (6.49–9.84) |
Quartile 4 (≥9.85) |
Vitamin E (mg/day) | ||
| Crude | 1 (Ref) | 0.75 (0.56–1.00) | 0.62 (0.44–0.86) | 0.54 (0.39–0.74) | 0.95 (0.93–0.97) | <0.001 |
| Model 1 | 1 (Ref) | 0.75 (0.55–1.03) | 0.70 (0.48–1.02) | 0.73 (0.52–1.03) | 0.97 (0.95–1.00) | 0.026 |
| Model 2 | 1 (Ref) | 0.75 (0.52–1.07) | 0.70 (0.46–1.06) | 0.71 (0.51–0.98) | 0.97 (0.95–0.99) | 0.004 |
| Model 3 | 1 (Ref) | 0.70 (0.48–1.03) | 0.64 (0.40–1.03) | 0.61 (0.41–0.92) | 0.96 (0.93–0.98) | 0.002 |
OR, odds ratio; CI, confidence interval; Ref, reference; BMI, body mass index; MET, metabolic equivalent task.
Model 1 was adjusted for sex, age, race/ethnicity, education level.
Model 2 was adjusted for model 1, BMI, smoking status, prior fracture, hormone use, MET-minute scores.
Model 3 was adjusted for model 2, energy intake, vitamin D intake, calcium intake, vitamin D supplementation, and calcium supplementation.