Non-insulin-based insulin resistance indexes in predicting atrial fibrillation recurrence following ablation: a retrospective study

Table 6 Added predictive ability and reclassification statistics of insulin resistance

	C-statistic (95% CI)	P value	IDI (95% CI)	P value	Continuous NRI (95% CI)	P value
Baseline risk model	0.690 (0.667–0.714)	Reference	Reference		Reference
+TyG index	0.691 (0.667–0.714)	0.855	0.003 (-0.004-0.012)	0.432	0.042 (-0.034-0.109)	0.334
+METS-IR	0.701 (0.677–0.724)	0.047	0.020 (0.008–0.034)	0.004	0.119 (0.056–0.170)	0.002
+TyG-BMI index	0.702 (0678-0.725)	0.045	0.024 (0.012–0.038)	< 0.001	0.134 (0.079–0.182)	< 0.001
+TG/HDL-C ratio	0.692 (0.669–0.716)	0.455	0.001 (-0.005-0.006)	0.819	-0.001 (-0.059-0.079)	0.429

Baseline risk model: age, sex, body mass index, current drinking, diabetes mellitus, hyperlipidemia, coronary heart disease, duration of AF (≥ 24 months), AF type, fasting blood glucose, HbA1c, left atrial diameter, platelet, CHA₂DS₂-VASc score
AF, atrial fibrillation; CI, confidence interval; IDI, integrated discrimination improvement; METS-IR, metabolic score for insulin resistance; NRI, net reclassification improvement; TyG, triglyceride and glucose; TyG-BMI, triglyceride glucose-body mass index; TG/HDL-C, triglyceride to high-density lipoprotein cholesterol

ISSN: 1475-2840