Table 2.

Mean optical density values for glutathione S-transferase (GST), monooxygenase (Oxy) and esterase (Est) enzymes using α and β napthyl acetate as substrates.

		n	GST	Oxy	αEst	βEst
Females	An. parensis	24	0.024 (0.003)	0.335 (0.022)	0.134 (0.018)	0.115 (0.016)
	An. funestus (FANG)	24	0.022 (0.002)	0.324 (0.016)	0.201 (0.026)	0.16 (0.021)
	p		0.73	0.69	0.04	0.1
Males	An. parensis	24	0.024 (0.003)	0.245 (0.007)	0.173 (0.023)	0.178 (0.017)
	An. funestus (FANG)	24	0.024 (0.002)	0.246 (0.01)	0.207 (0.027)	0.14 (0.018)
	p		0.86	0.94	0.35	0.16

"n" = sample size; Figures in parentheses are the standard errors for each sample; p indicates significance in difference between An. parensis and An. funestus samples by enzyme system by gender following 2-sample t tests.