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.
Prevalence of lifetime rhinoconjunctivitis and eczema in children with and children without wheeze/asthma
*p < 0.05, significant change compared with the previous survey.
†p < 0.01, significant change compared with the previous survey.
‡p < 0.001, significant change compared with the previous survey.
