A novel model to predict mental distress among medical graduate students in China

BMC Psychiatry

Table 3 The effective performances of the model in the validation group

Discrimination ability	AUROC	Slope^a	95% CI	CCR	Sensitivity	Specificity	False POS	False NEG
Training group	0.70	0.06	0.04 ~ 0.08	82.30%	11.80%	94.70%	71.90%	14.10%
Validation group	0.66	0.04	0.02 ~ 0.06	81.30%	4.70%	96.70%	77.80%	16.60%
Calibration ability	Slope^b	95% CI	X-intercept	95% CI	Y-intercept	95% CI	P^c
Training group	0.90	0.65 ~ 1.15	−0.02	−0.09 ~ 0.03	0.02	−0.03 ~ 0.06	0.82
Validation group	0.80	0.51 ~ 1.09	−0.01	− 0.11 ~ 0.04	0.01	− 0.05 ~ 0.06	0.97

Abbreviations: AUROC the area under the receiver operating characteristic curve, CI Confident interval, CCR Correct classification rate, POS Indicates positive, NEG indicates negative
^a indicates discrimination slope;
^b indicates calibration slope;
^c indicates Hosmer and Lemeshow Goodness-of-Fit Test

ISSN: 1471-244X