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Table 6 Multivariable logistic regression model of association between clinical signs, physical examination findings and laboratory data and the risk of prolonged postoperative hospitalization (≥ 3 days) in bitches with pyometra (n = 184)

From: Outcome of pyometra in female dogs and predictors of peritonitis and prolonged postoperative hospitalization in surgically treated cases

Variablea   Estimated coefficient Odds Ratio (95% confidence interval) p-value
Polydipsiab Yes -0.83 (±0.44) 0.43 0.056
(0.18 - 1.02)
Vomitingb Yes 0.77 (±0.46) 2.16 0.097
(0.87 - 5.38)
Depression Mild 1.14 (±0.57) 3.14 0.008
(1.02 - 9.64)
  Moderate to severe 1.91 (±0.61) 6.78  
(2.03 - 22.59)
Mucous membranes Pale 1.13 (±1.37) 3.09 0.021
(1.06 - 8.96)
  Hyperemic -0.95 (±0.64) 0.39  
(0.11 - 1.35)
WBC Leucopenia 1.26 (±1.37) 3.53 0.012
(0.24 - 51.73)
  Leucocytosis -1.31 (±0.49) 0.27  
    (0.1 - 0.71)  
  1. aNormal = Within the reference range for healthy bitches and for laboratory variables at the main Clinical chemistry laboratory, University Animal Hospital, Swedish University for Agricultural Sciences, Sweden; WBC = White blood cell count (ref. range 5.8-16 ×109/L); bThe variable is not statistically significant (p > 0.05), but included as a confounder in the model.