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

Figure 1 The implementation process of this study. SF: Serum ferritin; hs-CRP: High-sensitivity C-reactive protein; HDL-C: High-density lipoprotein; SI: Suicidal ideation.

Figure 2 The diagnostic value of the receiver operating characteristic curve evaluation index. AUC: Area under the receiver operating characteristic curve; SF: Serum ferritin; hs-CRP: High-sensitivity C-reactive protein; HDL-C: High-density lipoprotein.

Figure 3 Nomogram for predicting suicidal ideation in adolescents with depression. For an individual patient, each variable corresponds to a single point at the top of the nomogram (Points). The total points were the sum of all single points and are indicated in the second line from the bottom (Total Points), and each total point corresponds to a probability of suicidal ideation. SF: Serum ferritin; hs-CRP: High-sensitivity C-reactive protein; HDL-C: High-density lipoprotein.

Figure 4 The nomogram of suicidal ideation in internal validation. A: Receiver operating characteristic of the nomogram for predicting the probability of suicidal ideation (SI); B: Density curve analysis of the nomogram for predicting the probability of SI; C: Calibration curve of the nomogram for predicting the probability of SI. AUC: Area under the receiver operating characteristic curve; SF: Serum ferritin; hs-CRP: High-sensitivity C-reactive protein; HDL-C: High-density lipoprotein; DCA: Density curve analysis; SI: Suicidal ideation.