Table 3.
Test group | Control group | SMD | 95% CI | Weight (%) | References | |||||
---|---|---|---|---|---|---|---|---|---|---|
N1 | Mean (SD) | N2 | Mean (SD) | t-value | p-value | Fixed | Random | |||
20 | 1.48 (1.53) | 20 | 1.67 (1.61) | − 0.119 | − 0.75 to 0.51 | 7.04 | 9.92 | Yewale et al. [14] | ||
32 | 0.1 (0.7) | 32 | 0.0( 0.2) | 0.192 | − 0.30 to 0.69 | 11.06 | 10.09 | Azangookhiavi et al. [14] | ||
30 | − 1.6 (0.5) | 30 | − 1.87 (0.30) | 0.646 | 0.12 to 1.17 | 9.91 | 10.05 | Dhamija et al. [16] | ||
54 | 0.17 (0.44) | 54 | 2.12 (0.69) | − 3.346 | − 3.93 to 2.76 | 7.67 | 9.96 | Ahmed et al. [17] | ||
45 | 1.89 (0.55) | 45 | 0.61 (0.42) | 2.593 | 2.03 to 3.16 | 8.36 | 9.99 | De Angelis et al. [23] | ||
23 | 1.0 (0.34) | 23 | 2.22 (0.42) | − 3.138 | − 4.02 to 2.26 | 3.55 | 9.50 | Kollati et al. [18] | ||
51 | 0.50 (0.24) | 51 | 0.56 (0.33) | − 0.206 | − 0.59 to 0.18 | 17.45 | 10.20 | Mendoza-Azpur et al. [24] | ||
40 | 1.80 (2.10) | 40 | 1.0 (2.30) | 0.360 | − 0.085 to 0.80 | 13.60 | 10.14 | Clark et al. [19] | ||
28 | 1.60 (1.46) | 28 | 2.80 (1.81) | − 0.720 | − 1.26 to − 0.17 | 9.15 | 10.03 | Zhang et al. [25] | ||
36 | 1.08 (0.66) | 36 | 1.36 (0.71 | − 0.404 | − 0.87 to 0.06 | 12.21 | 10.12 | Thakkar et al. [22] | ||
359 | 359 | − 0.177 | − 0.34 to − 0.015 | − 2.145 | 0.032 | 100.00 | 100.00 | Total (fixed effects) | ||
359 | 359 | − 0.397 | − 1.30 to 0.51 | − 0.861 | 0.390 | 100.00 | 100.00 | Total (random effects) |