Relative mortality in lower limb amputees with diabetes mellitus

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Abstract
A nationwide epidemiological study included 3516 primary major lower limb amputations in diabetic patients, during the period 1982 to 1992. On this well defined diabetic amputee population the relative mortality (Standard Mortality Ratio, SMR) has been analysed. The mortality rate was found to be 8 times the expected during the first year following amputation. The relative mortality is higher for females than males. An inverse relation between age and SMR was found, and the SMR was significantly related to the level of amputation. No significant difference could be detected when analysing SMR in relation to subdiagnosis (NIDDM vs IDDM) or SMR in relation to the period of treatment 1982–87 versus 1988–92.