approached significanceP = .054
GLM results for the days of opioid use outcome only approached significance for the BE × Plasma 2-AG interaction ( P = .054), so this interaction was not further interpreted.
GLM results for the days of opioid use outcome only approached significance for the BE × Plasma 2-AG interaction ( P = .054), so this interaction was not further interpreted.
Simple effects analyses indicated that there was a significant inverse association between plasma AEA and average pain intensity (ie, higher preoperative AEA was associated with lower postoperative pain) only in the low CSF BE group (beta = −3.009, SE = 1.298, P = .025) whereas there was a positive association approaching significance noted in the high BE group (beta = 3.003, SE = 1.557, P = .060).
Results for CSF 2-AG revealed only a nonsignificant trend for interaction between CSF BE and CSF 2-AG ( P = .091), so this interaction was not pursued further.