“…However, in all cases heterogeneity remained extremely high. Due to the smaller number of studies available to analyze acetaminophen and adjuvant use, as well as the data characterized as nonopioid, weak opioid, or strong opioid, many Overall analgesic 14,[16][17][18]20,23,25,29,33,36,37,43,45,46,48,49,52 17 50.8% (38.3%-63.3%) 99.4% Opioid [14][15][16]18,19,21,24,26,31,37,38,40,44 13 23.8% (15.2%-33.7%) 100.0% Weak opioid a, 17,20,23,26,36,43,45,46 8 17.1% (10.8%-24.5%) 83.8% Strong opioid a, 20,26,33,36,45,46 6 6.7% (3.2%-11.2%) 74.8% NSAID 14,15,19,20,…”