Table 3—

Determinants of change in smoking status during the study period

Stopped smokingStarted smoking
Females0.85 (0.72–1.01)0.62 (0.32–1.21)
Age in ECRHS I yrs
 40–4811
 34–<400.99 (0.79–1.25)5.08 (0.56–46.1)
 28–<340.96 (0.76–1.21)7.54 (0.91–62.2)
 20–<280.77 (0.60–0.99)22.2 (2.93–168)
Not living with a smoker11
Living with a smoker in ECRHS II0.43 (0.28–0.65)3.06 (0.95–9.90)
Living with a smoker in ECRHS I1.09 (0.90–1.33)1.45 (0.52–4.06)
Living with a smoker in both surveys0.45 (0.34–0.59)4.78 (2.03–11.2)
No smoking at workplace11
Workplace smoking in ECRHS II0.68 (0.48–0.97)1.32 (0.39–4.42)
Workplace smoking in ECRHS I1.06 (0.86–1.30)1.33 (0.55–3.22)
Workplace smoking in both surveys0.69 (0.50–0.95)1.59 (0.55–4.65)
Professionals11
Nonmanual0.90 (0.71–1.16)
Manual0.88 (0.71–1.09)1.13 (0.40–3.22)
Low educational level#0.73 (0.54–0.98)1.02 (0.38–2.78)
Smoking in ECRHS I
 ≤5 cigarettes·week−11
 >5–≤10 cigarettes·week−10.81 (0.64–1.03)
 >10–≤20 cigarettes·week−10.66 (0.53–0.81)
 >20 cigarettes·week−10.58 (0.44–0.78)
  • Data are presented as adjusted hazard ratio (95% confidence interval). The hazard risk ratios were adjusted for centre and the variables in the table. ECRHS: European Community Respiratory Health Survey. #: entered separately in the table, replacing occupational status.