Table 4 Mortality among men exposed and non‐exposed to potentially hazardous substances in the shipyard: number of observed (Obs) and expected (Exp) deaths and standardised mortality ratios (SMRs)* with 95% confidence intervals, follow‐up period to 2001.
| Cause of death (ICD‐9) | Exposed in shipyard | Non‐exposed in shipyard | ||||
|---|---|---|---|---|---|---|
| Obs | Exp | SMR (95% CI) | Obs | Exp | SMR (95% CI) | |
| All causes (001–999) | 3038 | 2804.6 | 1.08 (1.05–1.12) | 172 | 170.3 | 1.01 (0.86–1.17) |
| All cancers (140–209) | 690 | 669.4 | 1.03 (0.96–1.11) | 53 | 41.8 | 1.27 (0.95–1.66) |
| Oral and nasopharyngeal (140–149) | 18 | 19.1 | 0.94 (0.56–1.49) | 0 | 1.2 | 0.00 |
| Oesophagus (150) | 28 | 24.6 | 1.14 (0.76–1.65) | 0 | 1.6 | 0.00 |
| Stomach (151) | 22 | 24.8 | 0.89 (0.56–1.34) | 1 | 1.5 | 0.68 (0.01–3.80) |
| Colon (153, 159) | 54 | 60.2 | 0.90 (0.67–1.17) | 6 | 3.8 | 1.60 (0.58–3.49) |
| Rectum (154) | 12 | 14.2 | 0.85 (0.44–1.48) | 0 | 0.9 | 0.00 |
| Liver (155, 156) | 9 | 12.7 | 0.71 (0.32–1.35) | 0 | 0.8 | 0.00 |
| Pancreas (157) | 24 | 31.0 | 0.77 (0.50–1.15) | 3 | 1.9 | 1.56 (0.31–4.5) |
| Respiratory system (160–163, 1642–3, 164.8–9, 165) | 308 | 240.4 | 1.28 (1.14–1.43) | 21 | 15.1 | 1.39 (0.86–2.12) |
| Mesothelioma (163) | 6 | 1.1 | 5.39 (1.97–11.74) | 0 | 0.1 | 0.00 |
| Laryngeal (161) | 16 | 10.9 | 1.47 (0.84–2.39) | 2 | 0.7 | 2.92 (0.33–10.55) |
| Lung (162) | 286 | 227.6 | 1.26 (1.11–1.41) | 19 | 14.3 | 1.33 (0.80–2.07) |
| Skin (172–173; 187.7, 154.3) | 10 | 9.6 | 1.04 (0.50–1.92) | 0 | 0.6 | 0.00 |
| Breast (174–175) | 1 | 1.0 | 1.00 (0.01–5.54) | 0 | 0.1 | 0.00 |
| Prostate (185) | 65 | 69.7 | 0.93 (0.72–1.19) | 10 | 4.4 | 2.30 (1.10–4.22) |
| Bladder (188) | 15 | 19.1 | 0.78 (0.44–1.29) | 0 | 1.2 | 0.00 |
| Kidney (189) | 10 | 13.4 | 0.74 (0.36–1.37) | 0 | 0.9 | 0.00 |
| Hodgkin's disease (201) | 6 | 3.4 | 1.77 (0.65–3.86) | 0 | 0.2 | 0.00 |
| Multiple myeloma (203.0, 238.6) | 11 | 10.4 | 1.05 (0.53–1.88) | 2 | 0.7 | 3.08 (0.35–11.10) |
| Benign neoplasm (201–236; 237.6, 2378–9; 238.0–238.3; 238.8–238.9) | 8 | 8.9 | 0.90 (0.39–1.78) | 0 | 0.6 | 0.00 |
| Blood and blood‐forming organs (280–289.9) | 8 | 7.3 | 1.10 (0.5–2.2) | 1 | 0.5 | 2.21 (0.03–12.31) |
| Mental and psychoneurotic diseases (290–319) | 27 | 28.9 | 0.93 (0.62–1.36) | 1 | 1.9 | 0.53 (0.01–2.94) |
| Cardiovascular diseases (390–459) | 1146 | 1198.2 | 0.96 (0.90–1.01) | 59 | 72.9 | 0.81 (0.62–1.04) |
| Arteriosclerotic heart disease (410–414, 429.2) | 793 | 816.9 | 0.97 (0.90–1.04) | 39 | 49.2 | 0.79 (0.56–1.08) |
| Vascular lesions of CNS (430–438) | 116 | 144.2 | 0.80 (0.66–0.96) | 7 | 8.8 | 0.79 (0.32–1.64) |
| Respiratory diseases (460–519) | 218 | 197.3 | 1.11 (0.96–1.26) | 12 | 12.3 | 0.97 (0.50–1.79) |
| Emphysema (492) | 34 | 23.7 | 1.44 (0.99–2.01) | 2 | 1.4 | 1.44 (0.16–5.21) |
| Cirrhosis of the liver (571.0–571.8) | 25 | 61.3 | 0.41 (0.26–0.60) | 0 | 3.7 | 0.00 |
| Chronic nephritis (582) | 8 | 5.2 | 1.55 (0.67–3.05) | 1 | 0.3 | 3.42 (0.04–19.04) |
| All external causes of death (800–998) | 84 | 148.6 | 0.57 (0.45–0.70) | 3 | 9.3 | 0.32 (0.06–0.94) |
| All accidents (800–949) | 49 | 88.5 | 0.55 (0.41–0.73) | 1 | 5.53 | 0.18 (0.00–1.01) |
| Motor vehicle accidents (810–829) | 9 | 34.3 | 0.26 (0.12–0.50) | 1 | 2.2 | 0.46 (0.01–2.56) |
| Number of person‐years | 120619 | 7771 | ||||
Bold italic, statistically significant.
CNS, central nervous system.
*Maryland mortality rates.