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 estimated PTSD of first responders/rescue recovery workers by study. Multiple articles using the same data set are listed only once. Zvolensky et al. (2015) was excluded due to lack of information regarding specific time points. Studies that used a range of time points (e.g. data collected at 2–3 years post-9/11) include notation at the both upper and lower ranges.
