title: [Clinical characteristics and medical costs of diabetics with amputation at central urban hospitals in China].
abstract: OBJECTIVE
  To explore the clinical characteristics, medical costs and its influencing factors in diabetics with amputation.
  
  
  METHODS
  The data of diabetic amputation for the whole year of 2010 at 39 central municipal Class 3A hospitals all across China were retrospectively analyzed according to a unified protocol, including demographic characteristics, diabetic complications, classification of diabetic foot disease, level and prognosis of amputation and medical costs at hospitals.
  
  
  RESULTS
  Among them, 28.2% of all amputated patients or 39.5% of non-traumatic patients were diabetics. There were 313 males and 162 females. The average age and duration of diabetes were (66 ± 12) years and (130 ± 94) months. The level of HbA1c was 8.9% ± 2.4%. Among all amputated diabetics, the concurrent conditions included neuropathy (50.1%), peripheral artery disease (74.8%), nephropathy (28.4%) and retinopathy (25.9%). The patients with foot ulcer at Wagner 4 (50.3%) were more common. Among them, 67.5% had minor amputation with a median hospitalization stay of 33.0 (24.0 - 45.0) days and a medical cost of 26 138 (16 155 - 46 021) yuan RMB. The duration of diabetes, diabetic complications, severity and location of ulcers and amputation level influenced their hospitalization durations and medical costs.
  
  
  CONCLUSIONS
  The patients with diabetes and amputation are elder with more chronic diabetic complications and uncontrolled hyperglycemia. Most of them have complications of local gangrene and require minor amputation at admission. Their hospital stays are longer and medical costs higher significantly correlated with diabetic complications, severity and location of foot ulcers and level of amputations.
authors.affiliation: Department of Endocrinology, Peking University Hospital, Beijing 100044, China.
authors.forename: Ai-hong
authors.initials: AH
authors.lastname: Wang
authors.forename: Zhang-rong
authors.initials: ZR
authors.lastname: Xu
authors.forename: Li-nong
authors.initials: LN
authors.lastname: Ji
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000671:Amputation, Surgical / Q000191:economics* / Q000706:statistics & numerical data*; D002681:China; D003920:Diabetes Mellitus / Q000191:economics* / Q000601:surgery; D017719:Diabetic Foot / Q000191:economics / Q000601:surgery; D003929:Diabetic Neuropathies / Q000191:economics / Q000601:surgery; D005260:Female; D017048:Health Care Costs; D006786:Hospitals, Urban / Q000191:economics; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies