Malignant mesothelioma (MM) cases in young (<50 years old at diagnosis) and not young adults (>50 years) by modality of asbestos exposure in the Italian national mesothelioma registry (ReNaM), Italy, 1993–2018
| MM cases (<50 years old) | MM cases (>50 years old) | ||||
| Observed | Expected | Observed | Expected | ||
| Asbestos exposure | Occupational | 497 | 700.6 | 16 403 | 16 199.3 |
| Paraoccupational | 85 | 52.4 | 1180 | 1212.6 | |
| Environmental | 93 | 44.0 | 969 | 1018.0 | |
| Leisure activities related | 26 | 15.3 | 343 | 353.7 | |
| Unknown, unlikely | 302 | 202.3 | 4579 | 4678.7 | |
| Not defined | 275 | 263.3 | 6076 | 6087.7 | |
| Overall | 1278 | 29 550 | |||
Observed cases and expected cases in the hypothesis of independence.