糖尿病足部潰瘍為糖尿病併發症之一且會造成非創傷性截肢。足部潰瘍的原因以糖尿病周邊神經病變或周邊動脈血管疾病為主，因此了解糖尿病足部疾病等盛行率與風險因子對後續非創傷性截肢的預防非常重要。本研究為一橫斷面調查，收錄5,720位第2型糖尿病病人，藉由問卷了解足部病變之流行病學及危險因子。雖然這四種糖尿病足部病變息息相關，但每種疾病各有不同的危險因子，也反映了這四種疾病多元的致病機轉。整體來說，2018年台灣糖尿病周邊神經病變、動脈血管疾病、足部潰瘍以及截肢的盛行率比過去其他地區的報告還低，但疾病危險因子是相似的。

Diabetic foot ulcers are one of serious diabetes complications which major contributing causes were peripheral neuropathy and peripheral arterial diseases. Also, diabetes is an important cause of nontraumatic lower limb amputations. It is important to find how to avoid subsequent complications by knowing current prevalence of these diseases and the possible risk factors in patients with type 2 diabetes (T2D) in Taiwan. Our study is the first cross-sectional study to survey the diabetes related foot complications in health promotion institutes in Taiwan. Questionnaires were used to collect associated data. Totally, 5720 T2D patients were enrolled in this study. The prevalence of foot ulcers, peripheral arterial diseases, peripheral neuropathy and amputation were 0.9 %, 1.33 %, 4.6 % and 0.2%, respectively. Most of the patients came from north Taiwan and medical centers and were non-smokers. After comparing our data with previous epidemiology studies, we found that the prevalence of diabetic foot ulcers, peripheral neuropathy, peripheral arterial diseases and amputation were lower than previous studies. However, the risk factors were similar.