Study participants with occupational social class data in childhood and adulthood
| Year of data collection | Reference period | Subjects with data* | Manual† | Non-manual |
|---|---|---|---|---|
| *Results are number (%). †Occupational social class dichotomised into manual (IIIM, IV, and V) and non-manual (I, II, IIINM) groups. | ||||
| Infancy (1950–56) | Birth | 11469 (94.4) | 8971 (78.2) | 2498 (21.8) |
| Childhood (1962) | 6–12 years | 11233 (92.5) | 8127 (72.4) | 3106 (27.7) |
| Adulthood (2000–03) | 12 year | 6594 (54.3) | 4742 (71.9) | 1852 (28.1) |