Number of subjects | 3473 | 2377 | 1732 | 3132 |
Mean age (SD), years* | 69.2 (8.9) | 67.3 (7.9) | 66.6 (7.7) | 66.8 (7.2) |
Cigarette smoking (%)* | | | | |
Never | 33.5 | 36.9 | 39.6 | 37.8 |
Past | 55.1 | 56.7 | 55.3 | 56.0 |
Current | 11.4 | 6.4 | 5.2 | 6.3 |
| | | | |
Tea consumption (%)* | | | | |
Almost never | 52.9 | 48.8 | 48.7 | 47.5 |
Up to 1 cup/day | 27.6 | 30.4 | 28.7 | 30.3 |
1–2 cups/day | 15.9 | 16.7 | 18.5 | 17.6 |
>2 cups/day | 3.6 | 4.1 | 4.2 | 4.7 |
| | | | |
Coffee consumption (%)* | | | | |
Almost never | 27.3 | 29.0 | 27.1 | 29.3 |
Up to 1 cup/day | 15.0 | 14.9 | 12.4 | 14.5 |
1–2 cups/day | 38.4 | 36.5 | 40.1 | 35.8 |
>2 cups/day | 19.3 | 19.6 | 20.4 | 20.4 |
| | | | |
History of cardiovascular disease or cancer (%)* | 30.6 | 26.4 | 25.1 | 26.3 |