Table 3.
The crude and adjusted means of bone mineral density with green tea intake.
| Bone Mineral Density (g/cm2) | Cups of Green Tea/Day | |||
|---|---|---|---|---|
| None Mean (95% CI) |
<1/Day Mean (95% CI) |
1–3/Day Mean (95% CI) |
p for Trend | |
| Lumbar spine (n = 986) | ||||
| Crude | 0.78 (0.78–0.79) | 0.82 (0.81–0.83) | 0.85 (0.83–0.86) | <0.001 |
| Model 1 | 0.79 (0.79–0.80) | 0.81 (0.80–0.82) | 0.83 (0.81–0.85) | 0.001 |
| Model 2 | 0.84 (0.82–0.86) | 0.85 (0.83–0.87) | 0.85 (0.83–0.88) | 0.266 |
| Model 3 | 0.84 (0.82–0.86) | 0.85 (0.83–0.87) | 0.85 (0.83–0.88) | 0.326 |
| Femur neck (n = 769) | ||||
| Crude | 0.60 (0.60–0.61) | 0.64 (0.63–0.65) | 0.66 (0.64–0.67) | <0.001 |
| Model 1 | 0.62 (0.61–0.62) | 0.63 (0.62–0.63) | 0.64 (0.63–0.65) | 0.002 |
| Model 2 | 0.64 (0.62–0.65) | 0.64 (0.63–0.66) | 0.65 (0.63–0.66) | 0.314 |
| Model 3 | 0.64 (0.62–0.65) | 0.64 (0.63–0.66) | 0.65 (0.63–0.66) | 0.362 |
| Total femur (n = 163) | ||||
| Crude | 0.75 (0.75–0.76) | 0.78 (0.78–0.80) | 0.81 (0.80–0.83) | <0.001 |
| Model 1 | 0.77 (0.76–0.77) | 0.77 (0.77–0.78) | 0.79 (0.78–0.81) | 0.004 |
| Model 2 | 0.78 (0.76–0.80) | 0.78 (0.77–0.80) | 0.79 (0.77–0.81) | 0.417 |
| Model 3 | 0.78 (0.76–0.80) | 0.78 (0.77–0.80) | 0.79 (0.77–0.81) | 0.411 |
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.