Figure 2.
Female vs. male low back pain prevalence ratio in four age-specific groups. Each individual study is weighted by their sample size, and studies at each age-specific group are summed together.
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.