Table 3.
Study | Sample size | Percentage | 95% confidence interval |
---|---|---|---|
Abbasi et al. (2018) | 165 | 49.7 | (38.9, 60.5) |
Sayedalamin et al. (2017) | 481 | 41.2 | (35.5, 46.9) |
Agrawal et al. (2017) | 403 | 24.5 | (19.7, 29.3) |
Merdad et al. (2017) | 597 | 89.0 | (81.4, 96.6) |
Elsafi et al. (2017) | 434 | 44.0 | (37.8, 50.2) |
Al Habeeb et al. (2017) | 1250 | 43.6 | (39.9, 47.3) |
Flayou et al. (2016) | 245 | 65.7 | (55.6, 75.8) |
Al Bshabshe et al. (2016) | 873 | 76.2 | (70.4, 82.0) |
Almohsen et al. (2016) | 195 | 37.4 | (28.8, 46.0) |
Afzal Aghaee et al. (2015) | 400 | 55.6 | (48.3, 62.9 |
Alsaied et al. (2012) | 418 | 29.3 | (24.1, 34.5) |
Alam et al. (2007) | 948 | 42.0 | (37.9, 46.1) |
Shahbazian et al. (2006) | 1000 | 64.0 | (59.0, 69.0) |
El-Shoubaki and Bener (2005) | 1305 | 37.8 | (34.5, 41.1) |
Summary | 8714 | 49.8 | (41.3, 58.4) |