Table 4.
Hazard ratios for coronary heart disease among women according to father’s social class, level of education, and social class and household income in adult life
| Number of cases of CHD/number of women | Hazard ratio (95% CI) | p for trend | |
| Father’s social class during woman’s infancy | |||
| Upper middle | 6/412 | 1.00 | 0.40 |
| Lower middle | 15/815 | 1.20 (0.47 to 3.09) | |
| Labourer | 55/2580 | 1.38 (0.59 to 3.21) | |
| Woman’s level of education | |||
| High | 9/601 | 1.00 | 0.009 |
| Middle | 18/1302 | 0.99 (0.45 to 2.21) | |
| Low | 55/1852 | 1.97 (0.97 to 3.98) | |
| Social class in adult life (1980 data) | |||
| Higher official | 17 / 771 | 1.00 | 0.44 |
| Lower official | 44/1979 | 1.01 (0.58 to 1.76) | |
| Self employed | 2/169 | 0.49 (0.11 to 2.14) | |
| Labourer | 9/487 | 0.80 (0.36 to 1.79) | |
| Household income (1000 Finnish marks/year) (1980 data) | |||
| >140 | 18/709 | 1.00 | 0.17 |
| 111–140 | 16/667 | 0.98 (0.50 to 1.92) | |
| 96–110 | 3/453 | 0.29 (0.09 to 0.98) | |
| 75–95 | 14/591 | 1.01 (0.50 to 2.03) | |
| ⩽75 | 32/1211 | 1.15 (0.65 to 2.05) | |