Abstract
AimsTo assess trends in hospital admissions for non-traumatic lower extremity amputations (LEAs) and for mortality following LEAs in adult patients with type 1 diabetes (T1DM) or type 2 diabetes (T2DM) admitted to hospitals in Victoria, Australia during 2004–2016. MethodsUsing hospital discharge data, we calculated age- and sex- adjusted admission rates for incident cases of any LEA, minor LEAs, major LEAs and 12-month mortality following any LEAs for patients according to diabetes type. Joinpoint regression analysis was used to identify changes in linear trends that were described as average annual percentage change (AAPC). ResultsSignificant declines in rates of admission for any LEA (AAPC −4.9), minor LEAs (−3.0 %) and major LEAs (AAPC -11.5 %) were seen for patients with T2DM. Overall, admission rates for any LEA did not significantly change for patients with T1DM during 2004 and 2016, however, we detected a significant rise in admissions for any LEAs (AAPC +5.1) in female patients with T1DM. This increase was most prominent in younger (<60 years) patients undergoing minor LEAs. During 2009–2016, younger patients with type 1 DM, regardless of sex, also experienced significant increases in admissions for any LEA (AAPC +14) and major LEAs (AAPC +15). Mortality associated with LEAs in T2DM declines, with a 12-month mortality rate of 6.3 %) associated with LEAs in T2M decline (AAPC -4.2 %) whereas rates for T1DM remained stable (1.9 %) during 2004–2016. ConclusionsThere were significant differences in LEA hospital admission trends by type of diabetes, age and sex. The decline in LEAs and its associated mortality is welcome news for patients with T2DM. However, reasons for the increase in LEAs in younger patients with T1DM remain to be determined.
Published Version
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