Consumption of Tea, Coffee, decaffeinated Coffee, and estimated total Caffeine intake at baseline
| Characteristic | Tea consumption at baseline, cups | Caffeinated Coffee consumption at baseline, cups | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Never N = 1.131 |
5–10/yr N = 533 |
1–3/mo N = 890 |
1–4/wk N = 1.070 |
≥5/wk N = 1.185 |
Never N = 1.656 |
5–10/yr N = 308 |
1–3/mo N = 330 |
1–4/wk N = 433 |
≥5/wk N = 2.063 |
|
| Tea, % | ||||||||||
| Never | 33.6 | 12.3 | 12.7 | 17.8 | 20.1 | |||||
| 5–10 times/yr | 7.3 | 19.8 | 13.3 | 8.8 | 13.0 | |||||
| 1–3 times/mo | 12.7 | 19.2 | 28.8 | 20.1 | 21.1 | |||||
| 1–4 times/wk | 19.3 | 25.3 | 26.1 | 32.1 | 21.4 | |||||
| ≥5 times/wk | 27.0 | 23.4 | 19.1 | 21.3 | 24.4 | |||||
| Coffee, caffeinated, % | ||||||||||
| Never | 49.4 | 22.7 | 23.8 | 30.1 | 38.0 | |||||
| 5–10 times/yr | 3.4 | 11.4 | 6.7 | 7.3 | 6.1 | |||||
| 1–3 times/mo | 3.7 | 8.3 | 10.7 | 8.1 | 5.4 | |||||
| 1–4 times/wk | 6.8 | 7.1 | 9.8 | 13.1 | 7.8 | |||||
| ≥5 times/wk | 36.7 | 50.5 | 49.0 | 41.5 | 42.8 | |||||
| Coffee, decaffeinated, % | ||||||||||
| Never | 44.2 | 36.9 | 36.5 | 31.5 | 39.9 | 31.4 | 11.7 | 7.3 | 22.9 | 55.4 |
| 5–10 times/yr | 4.3 | 11.2 | 7.6 | 7.0 | 6.0 | 3.2 | 5.9 | 4.0 | 5.8 | 10.1 |
| 1–3 times/mo | 5.6 | 7.2 | 12.4 | 7.7 | 8.2 | 4.9 | 7.8 | 15.2 | 6.5 | 10.0 |
| 1–4 times/wk | 8.9 | 9.6 | 12.4 | 15.1 | 8.7 | 10.5 | 13.4 | 14.6 | 22.7 | 8.0 |
| ≥5 times/wk | 37.1 | 35.2 | 31.1 | 38.8 | 37.1 | 50.0 | 61.2 | 59.0 | 42.1 | 16.5 |
| Total caffeine from coffee & tea, median, mg/wk |
12 | 429 | 226 | 288 | 363 | 14 | 26 | 53 | 288 | 439 |
| Total caffeine from coffee & tea, mean, mg/wk |
172 | 238 | 248 | 283 | 351 | 57 | 69 | 92 | 272 | 481 |