Table 3 Area under the receiver operating characteristics curve, standard deviations and confidence intervals for models discriminating between female patients with NSSI + SA and those with NSSI alone using the full set, and the reduced set respectively.

From: A biological phenotype of suicide attempt in adolescents with nonsuicidal self-injury: a machine-based learning approach

 

Models including the full set

Models including the reduced set

Model

AUC

AUCSD

LB

UB

AUC

AUCSD

LB

UB

Logistic regression

0.641

0.089

0.599

0.860

0.639

0.089

0.598

0.679

Elastic net

0.643

0.092

0.600

0.863

0.641

0.090

0.599

0.681

Random forest

0.635

0.094

0.592

0.677

0.690

0.096

0.650

0.726

Gradient-boosted tree

0.659

0.110

0.611

0.704

0.717

0.096

0.677

0.754

  1. A model with AUC = 1 would be considered as perfect, 0.9 < AUC < 1 as excellent, 0.8 < AUC < 0.9 as good, 0.7 < AUC < 0.8 as fair, 0.6 < AUC < 0.7 as poor and 0.5 < AUC < 0.6 as being slightly better than chance. Lower (LB) and upper bounds (UB) of the 95% confidence intervals (CIs) of AUC values are reported.
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