Table 3.

Results (PORL regression test): Distribution of wing fray categories, hunger stages and ovarian categories in tsetse flies in relation to increase in distance away from the edge of the tsetse belt in the Lundazi, Mpika, and Rufunsa sites in north-eastern Zambia

Site	Wing fray categories				Hunger stages				Ovarian categories
	G. m. morsitans			G. pallidipes	G. m. morsitans			G. pallidipes	G. m. morsitans	G. pallidipes
	Males+ Females	Males only	Females only	Males+ Females	Males+ Females	Males only	Females only	Males+ Females	Females	Females
Lundazi site
Coefficient	−0.005	−0.005	0.003	−0.031	−0.015	−0.008	−0.009	−0.033	−0.004	−0.014
P-value	0.648	0.738	0.876	0.249	0.166	0.526	0.526	0.231	0.880	0.767
Mpika site
Coefficient	−0.042	−0.048	−0.054	−0.038	−0.056	−0.056	−0.042	−0.034	−0.039	−0.074
Odds Ratio	0.959	0.954	0.947	–	0.946	0.952	0.959	–	–	–
Confidence Interval	0.939–0.980	0.928–0.979	0.913–0.982	–	0.925–0.966	0.928−0.978	0.924–0.996	–	–	*
P-value	< 0.001*	< 0.001*	0.003*	0.260	< 0.0001*	< 0.0001*	0.028*	0.303	0.117	0.162
Rufunsa site†
Coefficient	−0.088	−0.084	−0.073	−0.094	−0.097	−0.082	−0.112	−0.096		–
Odds Ratio	0.915	0.919	0.930	–	0.907	0.922	0.894	–		–
Confidence Interval	0.873–0.959	0.870–0.972	0.815−0.980	–	0.866–0.951	0.872–0.973	0.815–0.980	–		–
P-value	< 0.001*	0.003*	0.011*	0.118	< 0.0001*	0.004*	0.016*	0.114

*Significant result.

^†No dissection for ovarian categories undertaken in the site.