Table 1. Baseline characteristics of participants in the Nurses' Health Study I, Nurses' Health Study II and the Health Professionals Follow-up Study. Values are median (interquartile range) or percentages unless stated otherwise.
| Meat¥ | Poultry | Seafood | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| Nurses' Health Study I† | <1 serving/month | ≥1 serving/day | <1 serving/month | ≥1 serving/day | <1 serving/month | ≥1 serving/day |
| No of participants | 868 | 23470 | 1043 | 684 | 2975 | 1435 |
| Age (years) | 52 (45-57) | 48 (43-54) | 51 (45-57) | 49 (44-56) | 50 (44-57) | 50 (45-56) |
| White (%) | 94.1 | 95.4 | 94.7 | 90.2 | 95.4 | 92.3 |
| Body Mass Index | 22.4 (20.7-24.9) | 23.7 (21.6-26.6) | 23.0 (21.2-25.8) | 24.7 (22.1-27.5) | 23.1 (21.3-25.8) | 24.2 (21.9-27.1) |
| Physical Activity (METs/w) | 11.50 (3.9-26.5) | 6.50 (2.4-16.1) | 6.5 (2.4-17.8) | 10.4 (3.4-24.8) | 6.50 (2.4-17.8) | 10.40(3.4-24.8) |
| Current Smokers (%) | 8.9 | 27.6 | 22.8 | 18.9 | 25.9 | 24.1 |
| Family History of HTN (%) | 33.8 | 42.8 | 37.4 | 40.1 | 38.9 | 39.7 |
| Alcohol Intake (g/day) | 0.00 (0.0-3.0) | 2.10 (0.0-9.5) | 0.00 (0.0-3.4) | 1.80 (0.0-6.6) | 1.80 (0.0-6.6) | 2.8 (0.0-10.8) |
|
| ||||||
| Meat¥ | Poultry | Seafood | ||||
|
| ||||||
| Nurses' Health Study II‡ | <1 serving/month | ≥1 serving/day | <1 serving/month | ≥1 serving/day | <1 serving/month | ≥1 serving/day |
|
| ||||||
| No of participants | 3431 | 22466 | 1692 | 4426 | 6682 | 1520 |
| Age (years) | 37 (33-40) | 36 (32-39) | 37 (33-40) | 36 (33-40) | 36 (32-39) | 37 (33-40) |
| White (%) | 92.4 | 92.7 | 93.1 | 89.9 | 93.2 | 86.4 |
| Body Mass Index | 21.6 (20.1-23.7) | 23.7 (21.3-27.5) | 21.9 (20.3-24.3) | 24.1 (21.6-27.9) | 22.8 (20.8-25.9) | 23.4 (21.1-26.6) |
| Physical Activity (METs/w) | 22.80(9.9-44.1) | 10.10(4.0-22.2) | 16.60(7.0-35.5) | 15.30(6.2-32.2) | 10.40(3.9-23.4) | 21.20(9.0-43.5) |
| Current Smokers (%) | 6.8 | 15.0 | 11.6 | 10.8 | 11.7 | 13.6 |
|
| ||||||
| Family History of HTN (%) | 49.1 | 50.8 | 49.1 | 52.9 | 46.6 | 52.5 |
| Alcohol Intake (g/day) | 0.90 (0.0-3.7) | 0.90 (0.00-3.0) | 0.00 (0.0-2.7) | 0.90 (0.0-3.3) | 0.0 (0.0-1.9) | 1.80 (0.0-5.5) |
|
| ||||||
| Meat¥ | Poultry | Seafood | ||||
|
| ||||||
| Health Professionals Follow-up Study§ | <1 serving/month | ≥1 serving/day | <1 serving/month | ≥1 serving/day | <1 serving/month | ≥1 serving/day |
|
| ||||||
| No of participants | 1350 | 14461 | 990 | 584 | 1678 | 1864 |
| Age (years) | 53 (45-62) | 51 (44-60) | 55 (46-63) | 50 (44-58) | 53 (44-61) | 54 (47-62) |
| White (%) | 88.6 | 92.4 | 87.9 | 89.6 | 91.7 | 87.8 |
| Body Mass Index | 23.6 (22.0-25.1) | 25.1 (23.6-27.1) | 24.4 (22.6-26.5) | 25.0 (23.3-27.0) | 25.0 (23.0-26.6) | 24.7 (23.2-26.6) |
| Physical Activity (METs/w) | 20.1(7.9-43.1) | 10.1(3.3-25.5) | 10.8(3.3-25.6) | 17.6(5.0-36.3) | 7.90(2.1-23.3) | 19.1 (7.2-37.6) |
| Current Smokers (%) | 2.0 | 12.8 | 8.9 | 5.5 | 9.3 | 5.3 |
| Family History of HTN (%) | 30.1 | 31.6 | 26.3 | 32.2 | 28.5 | 32.4 |
| Alcohol Intake (g/day) | 1.50 (0.0-7.6) | 6.60 (1.0-16.3) | 1.00 (0.0-9.7) | 3.0 (0.0-10.6) | 1.10 (0.0-8.8) | 6.2 (1.5-14.5) |
†
Baseline for Nurses' Health Study I is 1984.
‡
Baseline for Nurses' Health Study II is 1991.
§
Baseline for Health Professionals Follow-up Study is 1986.
¥
Unprocessed and processed red meat combined.