Table 2.
Association between CDAI and osteoporosis
| Osteoporosis/n | Prevalence/% | Model 1a | Model 2b | Model 3c | Model 4d | |
|---|---|---|---|---|---|---|
| CDAI (continuous) | 925/11664 | 7.9 | 0.97 (0.97-0.98) | 0.99 (0.98-1.00) | 0.97 (0.96-0.99) | 0.98 (0.96-0.99) |
| CDAI categories | ||||||
| Quantile 1 | 313/2916 | 10.7 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Quantile 2 | 248/2916 | 8.5 | 0.77 (0.65-0.92) | 0.83 (0.68-1.01) | 0.77 (0.62-0.96) | 0.79 (0.63-0.98) |
| Quantile 3 | 198/2916 | 6.8 | 0.61 (0.50-0.73) | 0.75 (0.61-0.93) | 0.64 (0.50-0.83) | 0.66 (0.51-0.85) |
| Quantile 4 | 166/2916 | 5.7 | 0.50 (0.41-0.61) | 0.82 (0.65-1.03) | 0.59 (0.42-0.81) | 0.61 (0.44-0.85) |
| P for trend | <0.001 | 0.03 | <0.001 | 0.001 |
a
Model 1: crude model;
b
Model 2: adjusted for age, sex, race/ethnicity and family income;
c
Model 3: model 2 + BMI, eGFR, calorie intake, physical activity and drinking status;
d
Model 4 (the fully adjusted model): model 3 + diabetes, hypertension and smoking status.
BMI: Body Mass Index; eGFR: estimated Glomerular Filtration Rate; CDAI: Composite Dietary Antioxidant Index.