Table 4.

The number of dogs in each treatment reaching the component parts of the primary endpoint and the median [IQR] time taken to do so. CHF, congestive heart failure. The comparison between groups compares the time to subendpoint only for those dogs that reached that subendpoint

	Treatment group
	Pimobendan	Placebo	P Value for Comparison (Mann Whitney)
Number reaching primary endpoint	19	25
Subendpoint: Onset of CHF	N = 12	N = 17	P = .14
Median [IQR] time in days to that endpoint.	395 [274.3–969]	256 [130.5–536.5]
Subendpoint: Sudden cardiac death	N = 7	N = 8	P = .15
Median [IQR] time in days to that endpoint.	576 [45–623]	141 [54.75–320.3]