Table 2.

Prediction and discrimination assessment on the combined end-point of HF and/or AF for CMR-derived diastolic parameters (n = 1544)

	HR (95% CI)		Discrimination
	Univariate	Multivariate	AUC	Difference	P
Combined (n = 80)
log(EDSR)	0.32 (0.19–0.53)	0.51 (0.30–0.84)	0.763	0.005	0.556
log(SRI)	2.54 (1.76–3.66)	1.88 (1.29–2.74)	0.774	0.016	0.099
Torsion recoil rate	1.01 (0.99–1.03)	–	–	–	–
HF (n = 36)
log(EDSR)	0.26 (0.12–0.55)	0.45 (0.21–0.97)	0.786	0.013	0.342
log(SRI)	3.22 (1.91–5.43)	2.25 (1.30–3.89)	0.803	0.030	0.039
Torsion recoil rate	1.02 (0.98–1.05)	–	–	–	–
AF (n = 57)
log(EDSR)	0.39 (0.22–0.69)	0.57 (0.32–1.02)	0.774	0.003	0.612
log(SRI)	2.35 (1.52–3.62)	1.77 (1.13–2.76)	0.783	0.009	0.421
Torsion recoil rate	0.99 (0.97–1.02)	–	–	–	–

End-point is the participants who had atrial fibrillation and heart failure, whichever happened first. In multivariate analysis, adjustments were made for age, race, gender; body mass index, smoking status, systolic blood pressure, use of hypertension medication, diabetes mellitus/impaired fasting glucose, low-density lipoprotein (LDL) cholesterol, total cholesterol, and log(SRI).

SRI: strain relaxation index; EDSR: early diastolic strain rate; Combined, AF, or HF; HF: heart failure; AF: atrial fibrillation; AUC: area under the curve.