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Table 1 Mean surgery and extubation times by treatment group

From: Evaluation of the effects of methadone and tramadol on postoperative analgesia and serum interleukin-6 in dogs undergoing orthopaedic surgery

Group Surgery time* (mean ± SD) Extubation time* (mean ± SD)
TRA 95.3 ± 17.4 6.6 ± 2.4
MET 0.5 98.2 ± 15.2 7.2 ± 1.6
MET 0.7 98.5 ± 12.8 7.3 ± 2.2
  1. *measured in minutes.