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.
Methodological quality assessment using the Newcastle-Ottawa Quality Assessment Scale for cohort studies
| Author | Selection 1 | Selection 2 | Selection 3 | Selection 4 | Comparability 1 | Comparability 2 | Outcome 1 | Outcome 2 | Outcome 3 | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Woods et al., 2005 [18] | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 5/9 |
| Ottenbacher et al., 2009 [17] | 1 | 1 | 0 | n/a | 1 | 1 | 1 | 1 | 0 | 6/8 |
| Wang et al., 2013 [23] | 1 | 1 | 0 | n/a | 1 | 1 | 1 | 1 | 0 | 6/8 |
| Lee et al., 2014 [24] | 1 | 1 | 0 | n/a | 1 | 0 | 1 | 1 | 0 | 5/8 |
| Etman et al., 2015 [25] | 1 | 1 | 0 | n/a | 1 | 1 | 1 | 1 | 0 | 6/8 |
