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.
Correlation coefficients of the search rank of each platform.
| Frequency type | Clinical Frequency | Search Frequency | Question Frequency |
| Clinical Frequency | 1.000 | 0.290, P=.003 | 0.337, P=.001 |
| Search Frequency (Search Engine) | —a | 1.000 | 0.569, P<.001 |
| Question Frequency (CQAb service) | — | — | 1.000 |
aNot applicable.
bCQA: community question answering.
