Removed study | MD | 95% CI | Z value | P value | I2 |
---|---|---|---|---|---|
Güngördük K. [26] | –0.94 | (–1.58, − 0.31) | 2.93 | 0.003 | 86% |
Kiyak H. [34] | –1.15 | (–1.66, − 0.65) | 4.48 | < 0.001 | 88% |
Sharami SH. [30] | –0.99 | (–1.48, − 0.51) | 4.02 | < 0.001 | 89% |
Davari-Tanha F. [25] | –1.42 | (–1.76, − 1.09) | 8.33 | < 0.001 | 74% |
Khanna A. [27] | –1.07 | (–1.55, − 0.58) | 4.34 | < 0.001 | 90% |
Phelps P. [17] | –1.00 | (–1.75, − 0.25) | 2.62 | < 0.001 | 90% |
Tsai HW. [32] | –1.17 | (–1.63, − 0.71) | 4.95 | < 0.001 | 89% |
Tsai HW. [31] | –1.15 | (–1.63, − 0.68) | 4.77 | < 0.001 | 89% |