Studies | VR Mean (S.D.) | Control Mean (S.D.) | Mean difference (95% CI) |
Edmond 2002 [32] | 6.68 (1.09) | 6.68 (0.07) | 0.00 (−1.51 to 1.51) |
Fried 2010 [28] | 6.65 (2.53) | 2.73 (1.89) | 3.92 (2.16 to 5.68) |