2. Network meta‐analysis, random‐effects model.

Treatment	RR	95% CI	95% PI
bupi	0.19	0.12 to 0.29a	0.12 to 0.30
chloro	0.18	0.02 to 1.53	0.02 to 1.75
levo	0.17	0.04 to 0.70a	0.04 to 0.77
mepi	1.54	0.76 to 3.12	0.73 to 3.27
prilo	0.23	0.10 to 0.55a	0.09 to 0.58
pro	0.17	0.05 to 0.56a	0.05 to 0.60
ropi	0.10	0.01 to 0.78a	0.01 to 0.89

bupi: bupivacaine; chloro: 2‐chloroprocaine; CI: confidence Interval; levo: levobupivacaine; lido: lidocaine; mepi: mepivacaine; PI: prediction interval; prilo: prilocaine; pro: procaine, ropi: ropivacaine.
 ^aNull hypothesis of no difference rejected.