"This study uses raw data covering over l17,000 respondents from
the 2001 National Socio-Economic Survey (WSES) and 2001 National
Household Survey Survey (NHHS), including 3621 children under 10 years
of age, to investigate rife relationship between respiratory diseases and
exposure to secondhand cigarette smoke through living in a home where
people smoke. An important is that children n\under 10 years of age
who live in homes where 30 or more cigarettes are smoked each day are
significantly more likely to have various respiratory diseases than children
who live in smoke free-homes.
"
