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Table 5 Cost function estimates

From: A cost function for HIV prevention services: is there a 'u' – shape?

Variable AP financial data Case studies
  Coefficient Standard error Coefficient Standard error
Constant 8.053843* 0.909046 11.55254* 0.718119
Ln(price) 0.4827907* 0.0849852 0.1729654** 0.0627868
Coverage 2.01 × 10-5 * 4.52 × 10-6 0.000347** 0.000127
Vulnerable group 0.1143** 0.04873   
Tamil Nadu    -0.2801** 0.12508
N 76§ 16
F 22.48* 19.71*
Adjusted R2 0.4622 0.7891
Test for heteroscedasticity (χ2(1)) 5.81** 3.29***
Additional tests     
  1. *significant at 99%; **significant at 95%; ***significant at 90%; § Two cases are dropped as rent = 0