SMR (95% CI) for specific causes of death in 724 Sardinian silicotic patients (follow up 1964–97)
| Cause of death | ICD IX | Observed | Expected | SMR | 95% CI |
| All cause | (001–999.9) | 579 | 430.2 | 1.35 | 1.24 to 1.462-150 |
| All cancers | (140–239.9) | 94 | 100.8 | 0.93 | 0.76 to 1.14 |
| Stomach | (151–151.9) | 10 | 11.5 | 0.87 | 0.47 to 1.62 |
| Lung | (162–162.9) | 34 | 24.9 | 1.37 | 0.98 to 1.91 |
| Urinary tract | (185–189.9) | 13 | 15.9 | 0.82 | 0.48 to 1.41 |
| Lymphomas, leukaemia | (200–208.9) | 5 | 6.1 | 0.82 | 0.34 to 1.97 |
| All others | 32 | 42.4 | 0.75 | 0.53 to 1.07 | |
| Tuberculosis | (011–011.9) | 33 | 1.5 | 22.00 | 17.38 to 27.842-150 |
| Cardiocirculatory system | (390–459.9) | 112 | 119.2 | 0.94 | 0.78 to 1.13 |
| NMCRD | (490–505) | 278 | 46.1 | 6.03 | 5.44 to 6.692-150 |
| Digestive system | (520–579.9) | 34 | 32.9 | 1.03 | 0.74 to 1.45 |
| Urinary system | (580–599.9) | 12 | 6.1 | 1.97 | 1.13 to 3.432-150 |
| All accidents | (800–999.9) | 16 | 17.9 | 0.89 | 0.55 to 1.46 |
↵2-150 p<0.05.
SMR=standardised mortality ratio based on Sardinian regional rates, 1969–97.
NMCRD=non-malignant chronic respiratory diseases.