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.
Frequency of subjective cognitive impairment based on patient or relative reports. Open circles represent frequency reported by individual studies. Solid circles represent the aggregate frequency calculated based on all studies for that time point. Bars represent 95% confidence interval.
