Table 3. Age- and sex-specific survival percentages for barrier colony, CLEA closed colony and SNPRC conventionally-housed, open colony. (^* from Nishijima et al., 2012).

		Survival
Colony	Sex	2 years	5 years	8 years
Barrier	Male	100	90	68
	Female	100	80	68
CLEA*	Male	95	92	87
	Female	92	78	62
SNPRC	Male	78	60	38
	Female	80	50	22