Odds ratios of the relationships between indoor air pollutants and childhood AL. Odds ratios were calculated by multiple logistic regression model,parental education levels,
parental occupations, parental smoking histories, annual household income, season of indoor detection (summer or not), and outdoor sources of pollution. Data were not shown for
Chloroform because of the broad range of 95% CI (OR¼30.00, 95% CI: 4.09e219.99).