highly significantp -value < 0.0001
In the ‘immediately after surgery’ subgroup, the SMD with a 95% CI is −0.76 [−1.10, −0.42], with a highly significant p -value < 0.0001, I 2 = 9%.
In the ‘immediately after surgery’ subgroup, the SMD with a 95% CI is −0.76 [−1.10, −0.42], with a highly significant p -value < 0.0001, I 2 = 9%.