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.
Criteria for summation scoring of PRO questionnaire properties
| Excellent | +++ | Positive score in all studies |
| Good | ++ | Positive score in one study and neutral in others |
| Fair | + | Positive score in one study and negative in others |
| Poor | − | Negative score in more than one study or negative score in one study and neutral in others |
