Baseline characteristics in women who had and had not a cardiac event during an average of 10.7 years follow up. Mean (SD) and unadjusted odds ratios (OR). For age and BMI expressed as relative risks associated with 1 unit increase
| Variable | No cardiac event (n=9247) | Cardiac event (n=104) | OR (95% CI) |
| Age (years, mean (SD), range) | 48.5 (7.4) (28–55) | 51.0 (5.6) (29–55) | 1.06 (1.02, 1.10) |
| Smoking habits | |||
| Never smoked, n (%) | 4537 (45) | 14 (14) | reference |
| Former smoker, n (%) | 1747 (19) | 15 (14) | 2.54 (1.2, 5.3) |
| Current smoker, n (%) | 3312 (36) | 75 (72) | 6.69 (3.8, 11.6) |
| Mostly sedentary during leisure time* | |||
| No | 6432 (81) | 78 (79) | reference |
| Yes n (%) | 1505 (19) | 21 (21) | 1.15 (0.71, 1.9) |
| Body mass index (kg/m2) | 24.2 (4.1) | 24.6 (3.7) | 1.026 (0.98, 1.07) |
| Hypertension n (%) | |||
| No | 7794 (85) | 72 (69) | reference |
| Yes | 1399 (15) | 32 (31) | 2.48 (1.6, 3.8) |
| Diabetes mellitus, n (%) | |||
| No | 8943 (98) | 91 (88) | reference |
| Yes | 179 (2) | 13 (13) | 7.1 (3.9, 13.0) |
| Hyperlipidaemia n (%) | |||
| No | 6987 (76) | 61 (59) | reference |
| Yes | 2224 (24) | 42 (41) | 2.16 (1.46, 3.21) |
| Education† | |||
| Pimary school, n (%) | 5113 (58) | 64 (73) | reference |
| High school, n (%) | 2330 (26) | 21 (24) | 0.72 (0.44, 1.18) |
| College/university, n (%) | 1409 (16) | 3 (2.4) | 0.17 (0.05, 0.54) |
| Occupation | |||
| High level, n (%) | 1654 (18) | 6 (6) | reference |
| Low level, n (%) | 7543 (82) | 98 (94) | 3.58 (1.57, 8.17) |
| Marital status n (%) | |||
| Married | 6568 (72) | 71 (68) | reference |
| Single | 2583 (28) | 33 (31) | 1.18 (0.78, 1.79) |
| Working conditions* | |||
| Satisfactory | 7460 (94) | 90 (91) | reference |
| Non-satisfactory | 476 (6) | 9 (9) | 1.57 (0.78, 3.13) |
| Self reported stress | |||
| No | 4276 (52) | 43 (43) | reference |
| Yes | 3966 (48) | 58 (57) | 1.45 (0.98, 2.16) |
| Previous myocardial infarction | |||
| No | 9208 (99.6) | 97 (93.3) | reference |
| Yes | 39 (0.4) | 7 (6.7) | 17.0 (7.4, 39.0) |
Because of missing information analysis is based on (*) 99 cases and 7936 controls and on (†) 88 cases and 8852 controls, respectively.