Table 3

Variations in health-related quality of life by baseline characteristics with significance levels for t-tests of differences in means.

Mean (SD) EQ 5DindexP-valueMean (SD) EQ-5DvasP-value
Sex
 Female0.75 (0.30)0.00373.0 (20.2)0.007
 Male0.78 (0.29)74.6 (19.2)
Smoker
 No0.78 (0.28)<0.00175.0 (19.5)<0.001
 Yes0.73 (0.32)70.4 (20.1)
Passive smoker
 Yes0.78 (0.28)0.9674.4 (19.3)0.27
 No0.7 (0.29)75.1 (19.3)
Higher education
 Yes0.83 (0.25)<0.00177.9 (18.3)<0.001
 No0.72 (0.32)70.9 (20.2)