Table 1.

Distribution of body weight of 115 male and 111 female kittens from birth through 8 weeks of age

Age (weeks)	Weight (kg)*	Male weight (kg)	Female weight (kg)	P value (male vs female)
0	0.11 ± 0.02	0.11 ± 0.02	0.11 ± 0.01	1.00
2	0.30 ± 0.05	0.30 ± 0.05	0.29 ± 0.04	0.489
4	0.48 ± 0.10	0.49 ± 0.1	0.47 ± 0.11	0.128
6	0.66 ± 0.12	0.69 ± 0.12	0.63 ± 0.11	<0.001
8	0.92 ± 0.14	0.96 ± 0.14	0.88 ± 0.13	<0.001

Data are mean ± SD

^*Column also includes weights from an additional 20 kittens of unknown sex