Table 1

Characteristics of 247 children with or without asthma living in the area of Katmandu Valley, Nepal

Cases
(n=121)
Controls (n=126)
Mean age (years)14.114.1
Male (%)6462
Higher Indo-Aryan ethnicity (%)6057
Traditional house construction (stone or brick and mud) (%)5347
Rural living (%)5248
  • Data on age, sex, ethnicity, and school (area of living) were collected from the ISAAC screening survey.

  • Ethnicity and school (area of living) were matching variables.