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Table 2 Parameters of the generalized linear model on the association between singe bundle and double bundle ACL reconstruction groups and post-operative pain with potential confounders (N = 209 patients) (* Statistically significant, p-value < 0.05)

From: Comparing post-operative pain between single bundle and double bundle anterior cruciate ligament reconstruction: a retrospective study

Variable Regression Coefficient (beta) Standard Error 95% CI (Lower) 95% CI (Upper) P-value
Numbers of bundle ACL Reconstruction: double bundle (Ref. single bundle) −0.45 0.198 −0.838 − 0.062 0.0228*
Post-operative time (Ref. 0 h)
 4 h 1.94 0.193 1.562 2.318 < 0.001*
 8 h 2.16 0.193 1.782 2.538 < 0.001*
 12 h 1.43 0.193 1.052 1.808 < 0.001*
 16 h 1.26 0.193 0.882 1.638 < 0.001*
 20 h 1.24 0.193 0.862 1.618 < 0.001*
 24 h 1.07 0.193 0.692 1.448 < 0.001*
 Age in years (continuous) − 0.04 0.010 − 0.060 − 0.020 < 0.001*
 Sex: Female (Ref. Male) 0.52 0.317 − 0.101 1.141 0.106
  Concomitant intraarticular injuries (Ref. no injury) 0.04 0.274 −0.497 0.577 0.885
 Meniscal repair (Ref. no repair) −0.16 0.227 −0.605 0.285 0.487
  1. Single bundle reconstruction versus Double bundle reconstruction: Morphine consumption.