Table 3.

Association between METS-IR (per 1 unit increase) and AF recurrence

	Model 4		Model 5		Model 6
	HR (95%CI)	P value	HR (95% CI)	P value	HR (95% CI)	P value
METS-IR	1.04 (1.03–1.06)	< 0.001	1.04 (1.03–1.06)	< 0.001	1.04 (1.03–1.05)	< 0.001
< 40.889	Reference		Reference		Reference
≥ 40.889	1.78 (1.54–2.07)	< 0.001	1.84 (1.58–2.13)	< 0.001	1.62 (1.38–1.89)	< 0.001
M1	Reference		Reference		Reference
M2	1.32 (1.08–1.61)	0.007	1.34 (1.10–1.63)	0.004	1.26 (1.02–1.54)	0.030
M3	2.05 (1.71–2.47)	< 0.001	2.14 (1.77–2.58)	< 0.001	1.82 (1.50–2.22)	< 0.001

AF, atrial fibrillation; CI, confidence interval; HR, hazard ratio; METS-IR, metabolic score for insulin resistance; M1: METS-IR ≤ 35.585; M2: 35.585 < METS-IR ≤ 40.863; M3: 40.863 < METS-IR

Model 4: Unadjusted

Model 5: Adjusted for age and sex

Model 6: Adjusted for age, sex, current drinking, diabetes mellitus, hyperlipidemia, coronary heart disease, duration of AF (≥ 24 months), AF type, HbA1c, left atrial diameter, platelet, CHA₂DS₂-VASc score