Table 2.

Difference between groups in mean percentage of weight gained by cats based on the diet fed^* in the 6 months following routine spay or neuter surgery

Variable	Comparison	Difference	se	P
Diet	Control v. treatment	4·04	2·32	0·08
Sex	Neutered male v. spayed female	−1·41	2·35	0·55
Enrolment age	1 month difference	−5·17	1·52	0·007

^*Trial diet (n 90) v. standard diet (n 97).