Fig 1.
Flow diagram of patient selection and inclusion in the validation cohort.
Table 1.
Incidence of major amputation by clinical and epidemiological characteristics of patients with diabetic foot.
Table 2.
Incidence and relative risk of major amputation according to categories of the four diabetic foot classifications systems.
Fig 2.
Receiver operating characteristic (ROC) curves comparing the prognostic accuracy of diabetic foot classification systems for predicting six-month major amputation.
Table 3.
Discriminative ability (AUROC with 95% CI) of diabetic foot classification systems for predicting major amputation, overall and stratified by hospitalization status.
Table 4.
Pairwise differences in areas under the ROC curve (AUC) for the prognostic accuracy of diabetic foot classifications in predicting six-month major amputation.
Table 5.
Prognostic performance of diabetic foot classification cut-off points for predicting six-month major amputation.