Table 2.
Association between Barrett’s oesophagus and SIM, and cause specific mortality
| Observed mortality (No of deaths) | Expected mortality (No of deaths) | SMR (95% CI) | ||||
| Cause of death (ICD9.0 codes) | BO | SIM | BO | SIM | BO | SIM |
| All causes (1–999) | 253 | 149 | 265 | 163 | 96 (84–107) | 91 (77–106) |
| All cancers (140–239) | 69 | 41 | 56 | 35 | 122 (93–151) | 118 (82–155) |
| Oesophageal cancer (150) | 12 | 11 | 2 | 1 | 518 (225–812)* | 774 (317–1231)* |
| Stomach cancer (151) | 3 | 2 | 3 | 2 | 97 (0–207) | 106 (0–252) |
| Colorectal cancer (153, 154) | 10 | 4 | 7 | 4 | 139 (53–225) | 90 (2–179) |
| Lung cancer (162) | 13 | 8 | 12 | 7 | 107 (49–165) | 107 (33–181) |
| Digestive system disease (520–579) | 17 | 10 | 8 | 5 | 211 (111–311)* | 202 (77–327) |
| Ischaemic heart disease (410–414) | 60 | 37 | 66 | 41 | 91 (68–113) | 90 (61–119) |
| Stroke (430–438) | 21 | 10 | 32 | 20 | 65 (37–93)* | 50 (19–81)* |
| Other circulatory disease (390–409, 415–429, 439–459) | 16 | 11 | 21 | 13 | 74 (38–111) | 83 (34–132) |
| Respiratory system disease (460–519) | 46 | 27 | 57 | 35 | 81 (57–104) | 76 (48–105) |
| Other causes (1–139, 240–389, 580–999) | 24 | 13 | 23 | 14 | 103 (62–145) | 91 (42–141) |
BO, Barrett’s oesophagus; SIM, specialised intestinal metaplasia; SMR, standardised mortality ratio; 95% CI, 95% confidence interval.
*p<0.05.