Table 3. Stratified Cox Proportional Hazard Ratios (HRs) for mortality from all-cause, cardiovascular disease and cancer by green tea consumption in Chinese adult men by smoking status.
| Amount drunk (in grams) of green tea | |||||
|---|---|---|---|---|---|
| Mortality outcomes | non-drinker | ≤5 | 5-10 | >10 | P for trend |
| Never smoker | |||||
| All-cause | |||||
| No. of deaths | 7890 | 239 | 236 | 203 | |
| Age adjusted HR (95% CI) | 1.00 | 0.59(0.52,0.68) | 0.62(0.55,0.71) | 0.66(0.58,0.76) | <.0001 |
| Multivariate HR (95% CI) # | 1.00 | 0.75(0.66,0.86) | 0.70(0.61,0.79) | 0.68(0.59,0.79) | <.0001 |
| Cardiovascular disease | |||||
| No. of deaths | 2963 | 84 | 79 | 85 | |
| Age adjusted HR (95% CI) | 1.00 | 0.56(0.45,0.69) | 0.55(0.44,0.69) | 0.72(0.58,0.89) | <.0001 |
| Multivariate HR (95% CI) # | 1.00 | 0.73(0.59,0.91) | 0.63(0.50,0.79) | 0.77(0.62,0.96) | <.0001 |
| Cancer | |||||
| No. of deaths | 1642 | 41 | 57 | 44 | |
| Age adjusted HR (95% CI) | 1.00 | 0.49(0.36,0.67) | 0.73(0.56,0.96) | 0.75(0.56,1.01) | 0.0007 |
| Multivariate HR (95% CI) # | 1.00 | 0.60(0.44,0.82) | 0.83(0.64,1.09) | 0.81(0.60,1.10) | 0.03 |
| Current Smoker | |||||
| All-cause | |||||
| No. of deaths | 17946 | 1128 | 2142 | 1629 | |
| Age adjusted HR (95% CI) | 1.00 | 0.96(0.90,1.02) | 1.01(0.97,1.06) | 0.97(0.92,1.01) | 0.2839 |
| Multivariate HR (95% CI) # | 1.00 | 1.01(0.95,1.07) | 1.02(0.98,1.07) | 0.94(0.89,1.00) | 0.1469 |
| Cardiovascular disease | |||||
| No. of deaths | 6484 | 399 | 726 | 521 | |
| Age adjusted HR (95% CI) | 1.00 | 0.94(0.85,1.09) | 0.95(0.87,1.02) | 0.84(0.77,0.92) | 0.0001 |
| Multivariate HR (95% CI) # | 1.00 | 1.04(0.94,1.15) | 1.01(0.93,1.10) | 0.88(0.81,0.97) | 0.0299 |
| Cancer | |||||
| No. of deaths | 4050 | 230 | 401 | 281 | |
| Age adjusted HR (95% CI) | 1.00 | 0.88(0.77,1.00) | 0.87(0.79,0.96) | 0.75(0.67,0.86) | <.0001 |
| Multivariate HR (95% CI) # | 1.00 | 0.94(0.85,1.08) | 0.94(0.85,1.05) | 0.82(0.72,0.93) | 0.0015 |
Abbreviation: CI, confidence interval.
The multivariate HR has been adjusted for age (continuous), BMI (<18.5, 18.5-24.9, 25.0-29.9, ≥30.0), marital status (yes or no), urban locality (yes or no), education <6 years (yes or no), job status (employed or unemployed), , alcohol drinking (non-regular, moderate or heavy), times of weekly fish consumption (none, 1-3 times, 4-7 times, or ≥8 times), times of weekly meat consumption (none, 1-3 times, 4-7 times, or ≥8 times), times of weekly poultry consumption (none, 1-3 times, 4-7 times, or ≥8 times), times of weekly egg consumption (none, 1-3 times, 4-7 times, or ≥8 times), times of weekly milk consumption (none, 1-3 times, 4-7 times, or ≥8 times), black tea drinker (yes or no) jasmine tea drinker (yes or no) and other tea drinker (yes or no).