Parameters | Model 5 | Model 6 | Model 7 | |||
Estimate | SE | Estimate | SE | Estimate | SE | |
Constant | 3.153*** | 0.437 | 3.110*** | 0.418 | 2.963*** | 0.191 |
Scale (in thousands) | −1.578*** | 0.291 | −1.630*** | 0.271 | −1.662*** | 0.257 |
Scale∧2 (in millions) | 0.553*** | 0.137 | 0.575*** | 0.129 | 0.585*** | 0.126 |
Scale∧3 (in billions) | −0.056*** | 0.016 | −0.059*** | 0.015 | −0.060*** | 0.015 |
Campaign style | 0.174* | 0.100 | 0.187** | 0.093 | 0.205** | 0.080 |
Efficiency | −0.049 | 0.109 | −0.037 | 0.092 | ||
% HIVST kits distributed to men | 0.511** | 0.221 | 0.519** | 0.216 | 0.542** | 0.208 |
% HIVST kits distributed to people who never tested for HIV | −0.097 | 0.748 | ||||
Distance (in thousands) | 0.603** | 0.292 | 0.582** | 0.245 | 0.623*** | 0.222 |
Positivity | 0.177 | 0.327 | ||||
HTS average cost | −0.004 | 0.006 | ||||
Price_level (in thousands) | 0.139*** | 0.041 | 0.133*** | 0.035 | 0.126*** | 0.029 |
No. of obs. | 74 | 74 | 74 | |||
R2 | 0.78 | 0.77 | 0.77 | |||
R2 adjusted | 0.74 | 0.75 | 0.75 | |||
Likelihood ratio test: model 5 versus model 6, and model 6 versus model 7 | ||||||
Difference of χ2 values (df) | 0.93 (3) | 0.18 (1) | ||||
P value | 0.82 | 0.67 |
***P<0.01, **p<0.05, *p<0.10; df calculations: model 5 versus model 6: 13–10=3, model 6 versus model 7: 10–9=1.
HIVST, HIV self-testing; SE, Standard error.