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Table 4 Univariate and multivariate linear regression analyses to identify the factors associated with blood loss during quadrantectomy

From: Protective effect of remifentanil on blood loss in endoscopic subcutaneous mastectomy: a retrospective study

  Univariate Multivariate
Factor Coefficient Standard error P value Coefficient Standard error P value
Age, years − 0.96 9.74 0.2 − 0.33 0.71 0.65
Operative time 1.18 0.18 < 0.001 1.08 0.18 < 0.001
Ephedrine use − 22.33 21.9 0.31 − 7.4 20.79 0.72
Phenylephrine use − 82.66 122.77 0.5 − 77.67 113.72 0.5
Atropine use − 39.28 19.02 0.04 − 15.21 18.36 0.41
Diclofenac suppository use 5.7 22.95 0.8 − 7.08 22.27 0.75
Flurbiprofen axetil use − 13.79 17.35 0.43 − 0.25 18.18 0.99
Remifentanil use − 56.11 18.7 0.003 − 39.12 19.68 0.048
   n = 212
   R2/adj. R2 = 0.199/0.167
   P < 0.001
  1. R2/adj. R2 determination coefficient/adjusted determination coefficient
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