Table 5.
The odds ratios for osteoporosis according to green tea intake.
| Osteoporosis | Cups of Green Tea/Day | ||
|---|---|---|---|
| None OR (95% CI) |
<1/Day OR (95% CI) |
1–3/Day OR (95% CI) |
|
| Lumbar spine (n = 986) | |||
| Crude OR | 3.41 (2.19–5.29) | 1.91 (1.24–2.95) | 1 |
| Model 1 | 2.27 (1.41–3.65) | 1.92 (1.21–3.03) | 1 |
| Model 2 | 1.43 (0.87–2.36) | 1.30 (0.80–2.13) | 1 |
| Model 3 | 1.44 (0.87–2.37) | 1.37 (0.84–2.23) | 1 |
| Femur neck (n = 769) | |||
| Crude OR | 4.47 (2.76–7.22) | 1.88 (1.15–3.06) | 1 |
| Model 1 | 2.51 (1.41–4.46) | 1.99 (1.12–3.53) | 1 |
| Model 2 | 1.92 (0.99–3.71) | 1.59 (0.83–3.05) | 1 |
| Model 3 | 1.91 (0.99–3.69) | 1.63 (0.85–3.12) | 1 |
| Total femur (n = 163) | |||
| Crude OR | 5.77 (2.21–15.04) | 2.64 (0.98–7.06) | 1 |
| Model 1 | 2.69 (0.93–7.74) | 2.80 (0.93–8.34) | 1 |
| Model 2 | 2.24 (0.56–8.83) | 2.79 (0.66–11.70) | 1 |
| Model 3 | 2.32 (0.56–9.51) | 2.76 (0.63–12.08) | 1 |
| Lumbar spine or Femur neck or Total femur (n = 1311) | |||
| Crude OR | 4.56 (2.92–7.11) | 2.21 (1.42–3.41) | 1 |
| Model 1 | 2.83 (1.76–4.56) | 2.32(1.46–3.67) | 1 |
| Model 2 | 1.93 (1.14–3.26) | 1.71 (1.02–2.86) | 1 |
| Model 3 | 1.91 (1.13–3.23) | 1.82 (1.09–3.05) | 1 |
OR; odds ratio, CI; confidence interval. Model 1: age-adjusted; Model 2: age, BMI, socioeconomic status, behavioral, hormonal, and nutritional factor adjusted; and Model 3: model 3 is adjusted for comorbidity in addition to model 2.