| Study | Our Study | Tuli et al. | Aiver et al. | Bolger et al. | Asrudin et al. | Wanamaker | Mamatha et al. |
|---|---|---|---|---|---|---|---|
| Variations | 32 % | 30 % | 30 % | 2.5 % | 2 % | 45 % | 65 % |
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.