Table 3

 Total and vigorous exercise and housework activity at baseline in relation to poor physical functioning (SF-36) at follow up, by occupational class; logistic regression analysis

White-collarBlue-collar
n (cases)OR (95% CI)n (cases)OR (95% CI)
Odds ratios (OR) and 95% confidence intervals (CI) adjusted for age and sex.
*Tertiles based on distributions specific for occupational class.
Total exercise and housework activity*
    Low86 (16)1.0090 (33)1.00
    Medium86 (18)0.97 (0.39 to 2.39)91 (33)0.67 (0.31 to 1.46)
    High86 (13)0.86 (0.33 to 2.26)90 (17)0.27 (0.11 to 0.65)
Vigorous exercise and housework activity
    No81 (24)1.00141 (54)1.00
    Yes177 (23)0.38 (0.19 to 0.76)130 (29)0.46 (0.25 to 0.85)