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.
Extracted variables from selected studies
| Population | Intervention | Comparison | Outcome | Study design |
|---|---|---|---|---|
| -Eligibility criteria -Characteristics of the participants |
-Kind of intervention/s done with duration/s | -Number of arms -Number participated -Number completed the allocated exposure |
-Primary and secondary outcomes -How the outcomes were measured -Number of participants with each outcome |
-Type of design -Year of conduct -Study setting |
