Table 3a.
Quality assessment of included studies
| Author | Year and journal of publication | Study design | Quality assessment tool | Quality rating of study | Comments |
|---|---|---|---|---|---|
| Clover et al.[13] | 1999- Australian Dental Journal | Cross-sectional study | BSA Medical Sociology Group | 5 | Moderate |
| Albert et al.[14] | 2002- American Journal of Public Health | Cross-sectional study | BSA Medical Sociology Group | 4 | Moderate |
| Johnson et al.[15] | 2006- British Dental Journal | Cross-sectional study | BSA Medical Sociology Group | 5 | Moderate |
| Bhat et al.[12] | 2013- Addict Health | Cross-sectional study | BSA Medical Sociology Group | 5 | Moderate |
| Awan et al.[16] | 2015- The Saudi Dental Journal | Cross-sectional study | BSA Medical Sociology Group | 5 | Moderate |
| Razavi et al.[17] | 2015- Asian Pacific Journal of Cancer Prevention | Cross-sectional study | BSA Medical Sociology Group | 5 | Moderate |
| Keogan et al.[18] | 2015- Tobacco Prevention and Cessation | Cross-sectional study | BSA Medical Sociology Group | 4 | Moderate |
| Duparea et al.[5] | 2015- International Journal Of Tobacco And Oral Health | Cross-sectional study | BSA Medical Sociology Group | 5 | Moderate |
| Bangera et al.[19] | 2018- Eastern Mediterranean Health Journal | Cross-sectional study | BSA Medical Sociology Group | 5 | Moderate |