Figure 4. Incidence trends in new wheezing/asthma diagnoses in England according to age group.
(A) 0–4 years; (B) 5–12 years. Dashed line indicates introduction of smoke-free legislation. Note the different scales on the y-axis.
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.