Fig. 2. Forest plots for the number of patients needing rescue analgesia (A) 12 hr and (B) 24 hr after surgery. QLB reduced the need for rescue analgesia at both 12 hr (P value < 0.001) and 24 hr (P value < 0.001, Egger’s P value = 0.506) after surgery. QLB: quadratus lumborum block, TFB: transversalis fascia block, IO: intravenous opioid, TAP: transversus abdominis plane block, II/IH: ilioinguinal/iliohypogastric nerve block, ESPB: erector spinae plane block, CB: caudal block, II: incision line injection, CI: confidence interval, FE: fixed effects, RE: random effects. aDifferent study by the same author published at a different year (patient enrollment periods do not overlap).
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