Table 1 Characteristics of the men and women in the EPIC-Norfolk 3 cohort
Characteristic | Men (N = 3861) | Women (N = 4762) |
|---|---|---|
Mean (SD) | ||
Age | 69.4 ( 8.1) | 68.1 (8.0) |
Mental activity score (from Questionnaire) | 21.1 (4.7) | 23.2 (4.7) |
Frequency% (N) | ||
Education level | ||
Left school with no formal qualification | 22.2 (857) | 29.7 (1412) |
Left school with at least O level or equivalent | 77.8 (3003) | 70.3 (3349) |
Social class | ||
I-III Non-manual | 64.5 (2472) | 67.2 (3165) |
III Manual-V | 35.5 (1362) | 32.8 (1544) |
Smoking status | ||
Current | 4.2 (159) | 4.5 (213) |
Former | 57.8 (2198) | 36.4 (1711) |
Never | 38.0 (1446) | 59.1 (2774) |
Physical activity | ||
Inactive | 37.4 (1422) | 37.2 (1748) |
Moderately-inactive | 25.1 (954) | 32.2 (1513) |
Moderately-active | 18.7 (713) | 16.9 (796) |
Active | 18.8 (714) | 13.6 (641) |
Employment and social activity | ||
Retired from main occupation | 75.9 (2855) | 78.8 (3562) |
Active in social groups | 59.5 (2264) | 68.5 (3219) |