Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Sensitivity analysis stratified by sex and parental asthma or allergy. Two examples of sensitivity analyses were presented for associations between wheeze or whistling in the chest and indoor level of SO2 (A) and associations between daytime attacks of breathlessness and outdoor level of formaldehyde (B). ORs and 95% CIs were calculated by conventional logistic regression model.
*p < 0.05; **p < 0.01. #p < 0.001.
