Table 3 Assessment of literature quality
Studies | Randomization | Control | Pre-Post | Retention | Missing data | Power analysis | Validity measure | Follow-Up | Score | Inclusion in meta-analysis |
|---|---|---|---|---|---|---|---|---|---|---|
Chang-Man An [9] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 4 | Yes |
Da Young Lim [24] | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 6 | Yes |
I. Dimbwadyo-Terrer [38] | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 7 | Yes |
Lynsey D Duffell [26] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 5 | Yes |
Meetika Khurana [27] | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 6 | Yes |
Michael Villiger [10] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 5 | Yes |
Michael Villiger [28] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 5 | Yes |
Min-Jae Lee [29] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 7 | Yes |
Somya Prasad [30] | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 6 | Yes |
Aarón Manzanares [31] | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 6 | No |
Madhusree Sengupta [32] | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 5 | No |
Michael Villiger [33] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 5 | No |
N Hasnan [34] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 4 | No |
Meyke Roosink [35] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 4 | No |
Rosanne B van Dijsseldonk [36] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 4 | No |
Tracy Wall [37] | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 4 | No |