TABLE 2.
Major Causes of Death and Standardized Mortality Ratios in Population-based Cohort of DCIS Patients
| Cause | ICD-10 | O | E | % | SMR (95% CI) | AEM |
| All causes | A00-Y89 | 1429 | 1557.2 | 100 | 0.92 (0.87–0.97) | −12.6 |
| Malignant neoplasm of breast | C50 | 284 | 85.4 | 20 | 3.33 (2.95–3.74) | 19.6 |
| Malignant neoplasm other than breast | C00-97 (excl. C50) | 333 | 406.6 | 23 | 0.82 (0.73–0.91) | −7.62 |
| Malignant neoplasm of digestive tract and peritoneum | C15-26, 48 | 137 | 143.6 | 10 | 0.95 (0.80–1.13) | −0.7 |
| Malignant neoplasm of lung, bronchus, and trachea | C33-34 | 72 | 96.9 | 5 | 0.74 (0.58–0.94) | −2.5 |
| Diseases of circulatory system | I00–99 | 368 | 477.1 | 26 | 0.77 (0.69–0.85) | −10.8 |
| Myocardial infarction | I21–22 | 85 | 98.3 | 6 | 0.87 (0.69–1.07) | −1.3 |
| Other heart disease | I30–33, 39–52 | 88 | 133.6 | 6 | 0.66 (0.53–0.81) | −4.5 |
| Cerebrovascular disease | I60–69 | 107 | 129.4 | 7 | 0.83 (0.68–1.00) | −2.2 |
| Diseases of respiratory system | J00-99 | 103 | 140.7 | 7 | 0.73 (0.60–0.89) | −3.7 |
AEM indicates absolute excess mortality per 10,000 patients per year; CI, confidence interval; E, expected number of deaths; O, observed number of deaths; SMR, standardized mortality ratio.