a significant trendP = 0.009
The subgroup analysis by analgesic type in our meta-analysis revealed a significant trend toward reduced PCA use with ESPB compared to morphine (MD: -8.78, 95%CI: -15.34 to -2.22, P = 0.009).
The subgroup analysis by analgesic type in our meta-analysis revealed a significant trend toward reduced PCA use with ESPB compared to morphine (MD: -8.78, 95%CI: -15.34 to -2.22, P = 0.009).