Clinical validity of outcome pain measures in naturally occurring canine osteoarthritis

BMC Veterinary Research

Table 1 Mean dog coefficient of variation ^a on the primary clinical endpoints ^b

Variable	D0 mean (SD)	D30 mean (SD)	D90 mean (SD)	Time effect^c F value (P)
PVF_BW	3.9 (2.2)	3.6 (1.8)	4.0 (3.2)	0.19 (0.82)
CSOM	11.3 (16.3)	5.7 (12.1)	3.9 (10.5)	0.94 (0.34)
EDA	15.6 (14.4)	11.4 (12.7)	10.7 (8.6)	16.76 (< 0.001)

^aCoefficient of variation (CV) is calculated as the ratio of the standard deviation to the mean. ^bPVF_BW: peak vertical ground reaction force adjusted for body weight change; CSOM: client-specific outcome measures; EDA: electrodermal activity.
Descriptive data are represented as mean (SD).^cThe mean CV were considered not variable at each time point, when time did not exert a significant effect with P-value higher than 0.05.

ISSN: 1746-6148