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.
Study Methodology Rating Scale
| A | Prospective study |
| B | Retrospective data analysis with clearly defined sources/criteria |
| C | Retrospective data analysis with unclear sources/criteria |
Note. This scale was adapted from a previously published scale (Paine, Fakeye, Christian, & Wood, 2016).
