Table 3
Results of sensitivity to zeros analyses
| Disease | Excluding studies with no cases | Adding 1 to observed and expected | Setting observed = expected | Number of studies with no cases | |||
| SMR (n) | 95% CI | SMR (n) | 95%CI | SMR (n) | 95% CI | ||
| Cancer of the buccal cavity and pharynx | 2.34 (12) | 1.45 to 3.77 | 1.42 (28) | 1.01 to 2.00 | 2.06 (28) | 1.49 to 2.93 | 16 |
| Cancer of the oesophagus | 2.25 (14) | 1.55 to 3.29 | 1.64 (26) | 1.20 to 2.24 | 2.07 (26) | 1.45 to 2.96 | 12 |
| Cancer of the stomach | 1.35 (20) | 1.06 to 1.72 | 1.20 (32) | 0.98 to 1.48 | 1.30 (32) | 1.04 to 1.79 | 12 |
| Cancer of the rectum | 1.57 (17) | 1.19 to 2.07 | 1.37 (28) | 1.07 to 1.76 | 1.52 (28) | 1.16 to 1.97 | 11 |
| Cancer of the larynx | 3.49 (8) | 1.98 to 6.14 | 1.58 (23) | 1.09 to 2.31 | 2.69 (23) | 1.63 to 4.46 | 15 |
| Cancer of the lung | 1.23 (30) | 1.06 to 1.43 | 1.22 (32) | 1.05 to 1.41 | 1.23 (32) | 1.06 to 1.42 | 2 |
| All lymphatic and haemapoietic cancer | 1.41 (25) | 1.17 to 1.69 | 1.34 (33) | 1.12 to 1.60 | 1.39 (33) | 1.16 to 1.66 | 8 |
| Lymphoma | 2.79 (14) | 1.97 to 3.97 | 1.98 (26) | 1.45 to 2.69 | 2.57 (26) | 1.88 to 3.52 | 12 |
