Table 3.
Multinomial logistic regression model results for the effect of wastewater on community health
| I have had malaria several times | Parameter estimate | Standard error | Wald | P-value | Odds ratio |
|---|---|---|---|---|---|
| Wastewater stream is close (agree = 1) | 0.528 | 1.419 | 0.139 | 0.710 | 1.696 |
| Wastewater flows all the year (agree = 1) | 1.033 | 0.956 | 1.168 | 0.280 | 2.810 |
| Wastewater mixed with water body (agree = 1) | 1.664 | 1.036 | 2.580 | 0.108 | 5.280 |
| Wastewater contaminates water bodies (agree = 1) | 1.118 | 0.972 | 1.323 | 0.250 | 3.058 |
| Wastewater creates swamps (agree = 1) | 0.085 | 0.898 | 0.009 | 0.925 | 1.089 |
| Wastewater creates an off-odor (agree = 1) | 0.436 | 0.869 | 0.251 | 0.616 | 1.546 |
| Wastewater creates flies (agree = 1) | 1.503 | 0.713 | 4.449 | 0.035* | 4.495 |
| Wastewater creates mosquitoes (agree = 1) | 2.534 | 0.813 | 9.712 | 0.002** | 12.61 |
| Constant | − 3.911 | 1.603 | 5.950 | 0.015 | 0.021 |
| Wastewater stream is close (disagree = 2) | − 1.271 | 1.499 | 0.719 | 0.397 | 0.281 |
| Wastewater flow all the year (disagree = 2) | 0.630 | 1.343 | 0.220 | 0.639 | 1.877 |
| Wastewater mixed with water body (disagree = 2) | 2.074 | 1.242 | 2.790 | 0.095 | 7.956 |
| Wastewater contaminates water bodies (disagree = 2) | − 0.653 | 1.226 | 0.284 | 0.594 | 0.520 |
| Wastewater creates swamps (disagree = 2) | − 0.834 | 1.114 | 0.560 | 0.454 | 0.434 |
| Wastewater creates an off-odor (disagree = 2) | 1.131 | 1.150 | 0.969 | 0.325 | 3.100 |
| Wastewater creates flies (disagree = 2) | 0.862 | 0.986 | 0.764 | 0.382 | 2.367 |
| Wastewater creates mosquitoes (disagree = 2) | 1.094 | 1.058 | 1.069 | 0.301 | 2.986 |
| Constant | − 2.799 | 1.677 | 2.786 | 0.095 | 0.061 |
*and **Significant at P < 0.01 and P < 0.05, respectively. − 2 log likelihood = 221.351; Chi-square = 247.117 and p = 0.000. Pseudo R-square (Cox and Snell, Nagelkerke and McFadden) = 0.548, 0.669, and 0.465, respectively