Table 4. Association between oesophageal cancer and type of energy used for cooking, lighting and heating in homes.
| Cooking | Lighting | Heating | ||||
|---|---|---|---|---|---|---|
| Cases, n = 131 n (%) | Controls, n = 234 n (%) | Cases, n = 127 n (%) | Controls, n = 226 n (%) | Cases, n = 77 n (%) | Controls, n = 154 n (%) | |
| Electricity | 22 (17) | 82 (35) | 65 (51) | 149 (66) | 5 (6) | 12 (8) |
| Charcoal | 75 (57) | 116 (50) | 12 (9) | 11 (5) | 35 (45) | 100 (65) |
| Firewood | 33 (25) | 34 (15) | 9 (7) | 7 (3) | 28 (36) | 37 (24) |
| Kerosene | 1 (1) | 34 (15) | 2 (2) | 0 (0) | 7 (9) | 2 (1) |
| Gas | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (1) | 0 (0) |
| Solar | 0 (0) | 1 (0.5) | 24 (19) | 40 (18) | 1 (1) | 3 (2) |
| Candles | - | - | 15 (12) | 19 (8) | 0 (0) | 0 (0) |
| *p-value | <0.001 | 0.02 | 0.003 | |||