Table 2

Percent distribution of passive smoking status among adult never-smokers in both genders

Male (n=3877)*Female (n=9101)*
nPer centnPer cent
No passive smoking†145837.6357739.3
Passive smoking (times/week)241962.4552460.7
 1–3103026.6187020.5
 4–670318.1127414.0
 >668617.7238026.2
Source of passive smoking
 Home64216.6393243.2
 Workplace136635.2141215.5
 Restaurant3509.04695.1
 Entertainment place56914.77818.6
 Others1403.61922.1
  • *Complex weighted computation was used in the statistical analysis.

  • †Exposure to secondhand smoke at least once per week for ≥30 min per occasion at home or public places.