Fig. 1.

Predictions produced by a 10-fold cross-validation technique for the multivariate model generated an area under the receiver operating characteristic (AUROC) curve of 0.64 (95% CI 0.55–0.74).

Predictions produced by a 10-fold cross-validation technique for the multivariate model generated an area under the receiver operating characteristic (AUROC) curve of 0.64 (95% CI 0.55–0.74).