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.
|
Note. D1: Are the participants representative of the target population?, D2: Are measurements appropriate regarding both the outcome and intervention (or exposure)?; D3: Are there complete outcome data?; D4: Are the confounders accounted for in the design and analysis?; D5: During the study period, is the intervention administered (or exposure occurred) as intended?
