Table 2.

Grouped plasma epinephrine and corticosterone values are shown as mean ± SD.

		Chamber Type
Hormone		Red-Tinted	Traditional
Epinephrine	C57BL/6J	204 ± 69	183 ± 84
	BALB/cJ	2169.5 ± 1832**	2080 ± 1442**
Corticosterone	C57BL/6J	206.7 ± 94	165 ± 70
	BALB/cJ	380.3 ± 104**	400 ± 165**
	Males	240.6 ± 117	223 ± 130
	Females	357.9 ± 121*	344 ± 191*
Following ANOVA for significance, P values were generated from post hoc testing (Tukey’s test for multiple comparisons). Differences were considered highly significant and significant at P values less than 0.0001 (2 ** per result) and 0.05 (one * per result), respectively. Significant differences were only seen between strains or sexes within a given chamber type and not between chambers.