Survival rate of patients with diabetic retinopathy after vitreous surgery
Matsumoto, T.; Uchio, E.; Gotoh, K.; Saeki, K.; Ohno, S.
Nippon Ganka Gakkai Zasshi 98(10): 989-993
1994
ISSN/ISBN: 0029-0203 PMID: 7976836 Document Number: 433403
We studied various factors affecting the survival rate after vitreous surgery in 140 patients with diabetic retinopathy, who had undergone vitreous surgery between 1982 and 1990, according to the life-table theory and Cox proportional hazards model. The 5-year survival rate was 95.8%. The most common cause of death was cerebro-cardiovascular disease in 75.0%. The ratio of the observed number of deaths (O) to the expected ones (E), the O/E ratio, was significantly higher in patients who had undergone surgery between 55 and 69 years of age. The O/E ratio was significantly higher in both cardiovascular disease and cerebrovascular disease groups. Factors associated with a lower survival rate included age at operation, history of nephropathy, and neuropathy.