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Fig. 3 | BMC Cardiovascular Disorders

Fig. 3

From: Development and internal validation of an OPCABG-specific prediction model for postoperative atrial fibrillation in Chinese patients: a retrospective cohort study

Fig. 3

The calibration curves for the four models: (a) OPCAB-POAF, C-index = 0.809; (b) C2HEST, C-index = 0.642; (c) CHADS2, C-index = 0.668; (d) CHA2DS2-VASC, C-index = 0.668. Each subplot presents a calibration curve, with the x-axis indicating the “Predicted Probability” and the y-axis showing the “Actual Probability”. Curves: The “Ideal” line represents the perfect 1:1 alignment between predicted and actual probabilities. The “Logistic calibration” line reflects calibration via logistic regression, while the “Nonparametric” line (dashed) shows nonparametric calibration results

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BMC Cardiovascular Disorders

ISSN: 1471-2261

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