Table 2 Attack rate of malaria according to the number of abandoned wells within two kilometres, Naxalbari block, Darjeeling district, West Bengal, India, April 2005-March 2006a
Number of wells within 2 kilometres | # Cases | Population | Attack rate per 1,000 | Ratio |
|---|---|---|---|---|
0 | 636 | 35,063 | 18 | Reference |
1 | 1,511 | 25,792 | 59 | 3 |
2 | 4,010 | 22,245 | 180 | 10 |
3 | 552 | 670 | 824 | 45 |
Overall | 6,709 | 83,770 | 80 | - |