Characteristics of participants in included studies.

Legend: Mean and (standard deviation SD) for PPDFU- Past present plantar diabetic foot ulcer (case), DPN- Diabetic peripheral neuropathy (control) groups. Weighted means (weighted by sample size) and ranges provided in final row.MPT is the monofilament perception threshold and VPT is the vibration perception threshold (both used in the diagnosis of DPN), ABPI represents ankle brachial pressure index values. DM Type is diabetes mellitus type (type 1 = T1 and type 2 = T2).aThese variables were not described with SD but reported ranges, the difference between the maximum and mean (maximum minus the mean) are reported instead of SD.bThis study reported findings as number of feet instead of patients.c26% of PPDFU group had digital or metatarsal amputations. BMI (SD) was calculated from data provided in non-metric format.dThis study used an active ulcer group (33%) for PPDFU but utilised the non-ulcerated foot for measurement of plantar pressure.说明：本数据集统计了既往/现患足底糖尿病足溃疡（PPDFU，Past present plantar diabetic foot ulcer，病例组）与糖尿病周围神经病变（DPN，Diabetic peripheral neuropathy，对照组）两组的均值及（标准差，SD，standard deviation）。 按样本量加权的加权均值及取值范围列于最后一行。 单丝感觉阈值（MPT，monofilament perception threshold）与振动感觉阈值（VPT，vibration perception threshold）均用于DPN的临床诊断；踝肱指数（ABPI，ankle brachial pressure index）为踝肱压力指数值。糖尿病分型（DM Type）指糖尿病类型（1型=T1，2型=T2）。 注a：此类变量未报告标准差，仅给出取值范围，故以最大值与均值的差值（最大值减均值）替代标准差进行报告。 注b：本研究以足例数而非患者例数报告研究结果。 注c：PPDFU组中有26%的受试者接受了趾骨或跖骨截肢术；体重指数（BMI，Body Mass Index）由非公制单位提供的数据换算得到。 注d：本研究将PPDFU亚组中33%的活动性溃疡患者作为研究对象，但却采用非溃疡足进行足底压力测量。