Table 1

Prevalence of secondhand smoke (SHS) exposure in never smokers

nSHS % (95% CI)No SHS % (95% CI)p Value*
Total380774.8 (73.3 to 76.2)25.2 (23.8 to 26.7)
Age<0.001
 18–2442685.3 (81.6 to 88.4)14.7 (11.6 to 18.4)
 25–44143579.9 (77.1 to 82.5)20.1 (17.5 to 22.9)
 45–64138171.5 (69.2 to 73.6)28.5 (26.4 to 30.8)
 65+55160.9 (57.1 to 64.5)39.1 (35.5 to 42.9)
Sex0.005
 Male147877.5 (75.0 to 79.9)22.5 (20.1 to 25.0)
 Female232973.0 (71.1 to 74.8)27.0 (25.2 to 28.9)
Highest education attained0.017
 Primary or below51669.6 (66.0 to 73.0)30.4 (27.0 to 34.0)
 Secondary174175.8 (73.6 to 77.8)24.2 (22.2 to 26.4)
 Post-secondary154875.4 (72.8 to 77.8)24.6 (22.2 to 27.2)
Employment<0.001
 Employed218879.2 (77.2 to 81.1)20.8 (18.9 to 22.8)
 Unemployed162068.7 (66.5 to 70.8)31.3 (29.2 to 33.5)
Physical activity (days)†0.01
 0114171.8 (69.0 to 74.5)28.2 (25.5 to 31.0)
 ≥1266376.0 (74.2 to 77.7)24.0 (22.3 to 25.8)
Diagnosed chronic diseases<0.001
 No257176.6 (74.8 to 78.4)23.4 (21.6 to 25.2)
 Yes123670.9 (68.3 to 73.3)29.1 (26.7 to 31.7)
  • Results were weighted by age and sex from census data.

  • *Significance was tested by χ2 test.

  • †Days doing any physical activity (moderate or vigorous).