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Table 5 Multivariable model for clinical variables from 822 horses on the primary presentation to veterinary practitioners for clinical signs of colic, categorised as critical or non-critical on the basis of case outcome

From: Prospective study of the primary evaluation of 1016 horses with clinical signs of abdominal pain by veterinary practitioners, and the differentiation of critical and non-critical cases

Variable Coefficient SE Odds ratio 95 % CI P value
Combined pain score 0.171 0.045 1.187 1.086–1.297 <0.001
Heart rate (beats per minute) 0.057 0.010 1.058 1.037–1.080 <0.001
Capillary refill time
 <2.5 s Ref.     
 >2.5 s 1.167 0.372 3.213 1.023–10.09 0.046
Pulse character
 Strong Ref.     
 Weak 1.061 0.372 2.889 1.394–5.987 0.004
Absence of gut sounds
 No Ref.     
 Yes 1.295 0.287 3.652 2.082–6.406 <0.001