Table 1. Baseline characteristics of the study population from the Diet, Cancer and Health cohort.
| Characteristics | STRATUM 1 (N = 18,233) | STRATUM 2 (N = 18,202) | STRATUM 3 (N = 18,258) | |||
|---|---|---|---|---|---|---|
| Cohort | Cases | Cohort | Cases | Cohort | Cases | |
| N | 18233 | 487 | 18202 | 705 | 18258 | 1082 |
| Baseline age (y) | 51.8 (50.6, 53.3)a | 51.8 (50.6, 53.2) | 56.1 (54.1, 58.2) | 56.1 (54.1, 58.2) | 61.8 (59.3, 64.5) | 61.8 (59.3, 64.4) |
| Sex | ||||||
| Men (%) | 48.2 | 69.2 | 47.2 | 66.8 | 45.2 | 56.2 |
| Women (%) | 51.8 | 30.8 | 52.8 | 33.2 | 54.8 | 43.8 |
| BMI (kg/m2) | 25.3 (21.2, 31.0) | 26.4 (21.8, 33.4) | 25.5 (21.5, 31.0) | 26.0 (22.0, 33.3) | 25.8 (21.6, 31.3) | 26.8 (22.2, 32.8) |
| Waist (cm) | 88 (72, 104) | 94 (75, 112) | 88 (72, 105) | 93 (76, 110) | 89 (73, 105) | 94 (76, 110) |
| Alcohol (g/day) | 13.7 (1.8, 50.4) | 17.9 (2.3, 65.3) | 12.9 (1.6, 47.2) | 16.2 (2.1, 60.8) | 12.2 (1.4, 45.4) | 15.3 (1.8, 56.3) |
| Smoking | ||||||
| Never (%) | 37 | 36 | 37 | 32 | 33 | 33 |
| Former (%) | 26 | 24 | 27 | 31 | 32 | 33 |
| Current < 15 CPD (%) | 12 | 12 | 13 | 12 | 14 | 12 |
| Current 15–25 CPD (%) | 17 | 18 | 16 | 16 | 16 | 17 |
| Current > 25 CPD (%) | 8 | 10 | 7 | 9 | 5 | 5 |
| Fish oil supplement (%) | 13.2 | 13.1 | 17.1 | 18.3 | 19.9 | 18.5 |
| Angina pectoris, self reported (%) | 1.2 | 3.7 | 2.1 | 4.0 | 3.1 | 4.1 |
| Diabetes, self reported (%) | 1.5 | 2.3 | 1.9 | 1.8 | 2.7 | 3.8 |
| Hypertension, self reported (%) | 12.6 | 18.3 | 15.4 | 20.0 | 19.5 | 27.9 |
| Intake of α-LA (g/day) | 1.7 (1.0, 2.9) | 1.8 (1.0, 3.2) | 1.7 (1.0, 2.9) | 1.8 (1.1, 3.0) | 1.7 (1.0, 2.9) | 1.7 (1.0, 2.9) |
| Intake of LA (g/day) | 10.9 (6.2, 18.0) | 11.4 (6.0, 19.1) | 10.5 (6.0, 17.7) | 10.9 (6.4, 18.9) | 10.6 (6.1, 17.9) | 10.5 (6.0, 18.1) |
CPD: cigarettes per day, α-LA: α-linolenic acid, LA: linoleic acid
aMedian; 80% central range in parentheses (all such values)