The cause-specific mortality experience of a cohort inclusive of all subjects compensated for asbestosis in Italy (altogether 3417 persons--2776 men and 641 women), was studied from 31.12.1979 through 30.6.1990. Forty-eight subjects, corresponding to 1.4% of the cohort, were lost to follow-up, while it was not possible to ascertain the cause of death of 78 subjects, corresponding to 6.9% of the deceased. Observed mortality was compared with expected figures, derived from the Italian population mortality rates. The study showed significant increases in mortality from all causes (SMR 153, 1134 obs), respiratory disease (SMR 388, 218 obs), all neoplasms (SMR 192, 438 obs), namely lung (SMR 289, 190 obs), pleura (SMR 2745, 34 obs), peritoneum (SMR 1372, 14 obs), intestine and rectum (SMR 186, 36 obs) and ovary (SMR 545, 6 obs). A significantly decreased mortality was observed for cardiovascular disease (SMR 85, 266 obs), diabetes (SMR 37, 8 obs) and disease of the nervous system (SMR 29, 3 obs). The increase in neoplasms of lung, pleura and peritoneum was significant in both genders, while the increase in intestinal neoplasms was significant among women but not among men. Exposure in the manufacture of asbestos-cement products, the shipbuilding and textile industries accounted for most of the observed mortality excess.