Table 2 Water supply and cases of Cryptosporidiosis Correlation between water supply zone specific attack rate and proportion of water received from each of the five main water treatment works supplying Greater Manchester.
Water treatment works | Z | P value |
|---|---|---|
Lostock | -1.084 | 0.2782 |
Woodgate Hill | 1.713 | 0.0867 |
Arnfield – Godley | -1.186 | 0.2353 |
Buckton Castle | -0.628 | 0.5294 |
Wybersley | 0.451 | 0.6517 |