Table 4. Comparison of age-related retinal degeneration in pigmented versus albino and male versus female mice¹_.

Mice	Mean ONL in μm±SEM (n)	p value from Student's t test
B x A/J, F2 pigmented	39.75±0.25 (119)
B x A/J, F2 albino	39.96±0.34 (51)	p=0.670
B x A/J, F2 male	40.48±0.26 (93)
B x A/J, F2 female	39.06±0.34 (77)	p=8.7x10-4

¹Mice were aged to 8 months in dim cyclic light.