Analysis of risk factors of suicidal ideation in adolescent patients with depression and construction of prediction model

Table 4 Diagnostic value of receiver operating characteristic curve evaluation index

Independent variable	Cutoff	AUC	Sensitivity	Specificity	Youden index	P value	95%CI
Trauma history	-	0.647	0.429	0.864	0.293	0.002	0.558–0.734
Triggers	-	0.651	0.538	0.763	0.301	0.002	0.562–0.740
SF (μg/L)	49.76	0.695	0.989	0.322	0.311	0.000	0.607–0.783
hs-CRP (mg/L)	3.829	0.643	0.593	0.712	0.305	0.003	0.556–0.731
HDL-C (mmol/L)	0.683	0.656	0.967	0.068	0.035	0.001	0.250–0.439

AUC: Area under the receiver operating characteristic curve; SF: Serum ferritin; hs-CRP: High-sensitivity C-reactive protein; HDL-C: High-density lipoprotein.