Table 2 Comparison of mortality rates among people above 5 years of age in S County and Y District, July 2002-June 2005
| Â | Disease | Number of deaths | Mortality rate (1/100,000) | SMR (1/100,000)* (95% CI) | Relative risk(RR) | p-value | |||
|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Study area | Control area | Study area | Control area | Study area | Control area | Â | Â |
S County | Total | 972 | 617 | 671.4 | 439.0 | 586.1 (549.1, 623.1) | 338.6 (311.6, 365.7) | 1.7 | 0.000 |
| Â | Total cancer | 462 | 128 | 319.1 | 91.1 | 277.8 (252.4, 303.2) | 72.1 (59.5, 84.7) | 3.9 | 0.000 |
| Â | Esophageal cancer | 108 | 21 | 74.6 | 14.9 | 64.1 (52.0, 76.2) | 11.8 (6.7, 16.8) | 5.5 | 0.000 |
| Â | Stomach cancer | 83 | 14 | 57.3 | 10.0 | 49.4 (38.8, 60.0) | 8.0 (3.8, 12.1) | 6.2 | 0.000 |
| Â | Liver cancer | 84 | 25 | 58.0 | 17.8 | 50.2 (39.4, 60.9) | 14.0 (8.5, 19.6) | 3.6 | 0.000 |
| Â | Colorectal cancer | 14 | 5 | 9.7 | 3.6 | 8.4 (4.0, 12.8) | 2.5 (0.3, 4.8) | 3.3 | 0.018 |
| Â | Lung cancer | 107 | 36 | 73.9 | 25.6 | 63.6 (51.6, 75.7) | 19.8 (13.3, 26.2) | 3.2 | 0.000 |
Y District | Total | 967 | 745 | 676.7 | 534.0 | 493.2 (461.4, 525.1) | 415.7 (385.7, 445.8) | 1.2 | 0.000 |
| Â | Total cancer | 429 | 139 | 300.2 | 99.6 | 223.6 (201.9, 245.3) | 78.4 (65.3, 91.6) | 2.9 | 0.000 |
| Â | Esophageal cancer | 51 | 22 | 35.7 | 15.8 | 25.7 (18.5, 33.0) | 11.8 (6.8, 16.7) | 2.2 | 0.002 |
| Â | Stomach cancer | 88 | 23 | 61.6 | 16.5 | 43.2 (33.9, 52.4) | 12.9 (7.6, 18.3) | 3.3 | 0.000 |
| Â | Liver cancer | 97 | 22 | 67.9 | 15.8 | 53.3 (42.4, 64.2) | 12.6 (7.3, 17.9) | 4.2 | 0.000 |
| Â | Colorectal cancer | 21 | 7 | 14.7 | 5.0 | 10.2 (5.7, 14.6) | 4.0 (1.0, 7.0) | 2.5 | 0.028 |
| Â | Lung cancer | 90 | 26 | 63.0 | 18.6 | 46.1 (36.3, 55.8) | 14.6 (9.0, 20.3) | 3.2 | 0.000 |