Study | Eligibility Criteria | Random allocation | Concealed allocation | Baseline comparability | Blinding of subjects | Blinding of therapist | Blinding of assessors | Adequate follow-up | Intention to treat analysis | Between-group comparison | Point estimates and variability | Total score | Quality index |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gross et al. (2019) [23] | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes | Yes | 7/10 | High |
Ruan et al. (2017) [20] | Yes | Yes | No | Yes | No | No | No | No | Yes | Yes | Yes | 5/10 | Moderate |
Nsagha et al. (2016) [26] | Yes | Yes | No | Yes | No | No | No | Yes | No | Yes | No | 4/10 | Moderate |
Sabin et al. (2015) [27] | Yes | Yes | Yes | Yes | No | No | No | No | Yes | Yes | Yes | 6/10 | High |
Moore et al. (2015) [24] | Yes | Yes | No | Yes | No | No | Yes | Yes | No | Yes | Yes | 6/10 | High |
Maduka and Tobin-West., (2013) [22] | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | 9/10 | High |
Mbuagwu et al. (2012) [21] | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | 9/10 | High |
da Costa et al. (2012) [18] | Yes | Yes | No | Yes | No | Yes | Yes | No | No | Yes | Yes | 6/10 | High |
Pop-Eleches et al. (2011) [25] | Yes | Yes | No | Yes | No | No | No | Yes | Yes | Yes | No | 5/10 | Moderate |
Lester et al. (2010) [19] | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Yes | Yes | Yes | 8/10 | High |