Study was done to identify the risk factors for asthma and its
severity among recruited 386 cases and 390 non-asthmatic
controls, aged 1e50 years.
On analyzing caseecontrol data we observed association of
motor vehicle air pollution, industrial smoke, smoking (active
and passive), and exposure to ETS with risk of asthma. Additionally,
subjects of age group 15 years, those were living in
joint families had more chances to have risk of asthma.
Whereas in subjects of age group > 15 years, having birth
order >2 was found to be associated with risk of asthma.
Many studies have observed risk factors for asthma in
children8 and adults9 separately, that shows risk factors may
affects differently at different age groups. However, in our
study we almost got similar results in both the studied groups;
15 and >15 years of age.