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Linear discriminant function coefficients
| Factor | Linear discriminant | Function coefficient | |
| < 3% | 3%-6% | 6% | |
| Disinfection of toilets | 29.354 | 46.645 | 45.882 |
| Garbage disposal methods | -14.564 | -34.839 | -25.324 |
| Density of flies in toilets | 9.127 | 7.143 | 19.911 |
| Density of flies in garbage dumps | 8.753 | 16.595 | 16.056 |
| Density of flies near waste-water | 15.855 | 38.361 | 27.858 |
| Use of anti-fly cover | 21.243 | 34.128 | 32.386 |
| Constant | -46.378 | -117.197 | -133.264 |
