Table 3. Cost function estimate.

	Coefficient	Robust Standard Error	P-value
Constant	1.927568	0.04396	0
Volume	0.000461	0.000042	0
Volume2	−0.000000143	1.83E-08	0
Volume3	1.22E-11	1.84E-12	0
Prevalence of Male Circumcision	−0.00051	0.000505	0.317
Total Labor Cost	0.002789	0.000507	0
Consumable Cost	0.004339	0.001389	0.002
Maintenance and Utility Cost	0.003324	0.000667	0
Urban	0.003889	0.011389	0.733
NGO Service Provider	0.019043	0.022677	0.401
Public Service Provider	0.027506	0.022549	0.223
Health Center	−0.01225	0.013138	0.351
Dispensary	0.020336	0.012379	0.1
Outreach	0.011413	0.013611	0.402
Campaign	−0.00789	0.025773	0.759
Namibia	−0.22291	0.048898	0
South Africa	−0.06832	0.035021	0.051
Tanzania	−0.10329	0.034536	0.003
Uganda	−0.00994	0.021406	0.643
Zambia	−0.00223	0.026449	0.933

Source: Authors' calculations.