title: Erratum.
abstract: Monteiro-Soares M, Martins-Mendes D, Vaz-Carneiro A, Sampaio S, Dinis-Ribeiro M. Classification systems for lower extremity amputation prediction in subjects with active diabetic foot ulcer: a systematic review and meta-analysis. Diabetes Metab Res Rev 2014; 30(7): 610–622. The authors wish to bring to the readers' attention the following errors in the aforementioned paper. In Table 1, in the IDSA-IWGDF classification system validation by Lavery et al. [21], the minor LEA prevalence should be 12.6% and major 8%, instead of 48.1 and 29.6%, respectively. In the discussion section, the authors report that ‘Lower extremity amputation prevalence ranged from 6.4% to 77.7%’; this sentence should, instead, read ‘Lower extremity amputation prevalence ranged from 6.4% to 42.8%’. Finally, the values stated in the following sentence, ‘In addition, a great variation in major LEA also occurred, with reported values ranging from 0% to 29.6%’, should instead be ‘0% to 25%’. We apologize for this error and any confusion it may have caused.