Meta analysis for postoperative pain, additional analgesics and intra-operative blood loss.

d: DMA, direct pair-wise meta analysis; i: ITC, indirect treatment comparison meta analysis; i(4): indirect treatment comparison meta analysis via 4PLC; i(1): indirect treatment comparison meta analysis via SPLC; i(p): pooled results of indirect treatment comparison meta analysis. *1.61 (0.30 8.80)i(4); 0.62 (0.16 2.39)i(1). # MD [95%CI]; & MD [95%CrI]; $: RR [95%CI]; @: RR [95%CrI];