The impact of type 2 diabetes mellitus on the clinical profile, myocardial fibrosis, and prognosis in non-ischemic dilated cardiomyopathy: a prospective cohort study

Table 5 Subgroup analysis of T2DM on the composite endpoint among DCM patients

T2DM		HR (95% CI)	P value	P-interaction
Sex	Male	2.11 (1.45–3.02)	< 0.001	< 0.001
	Female	1.39 (0.71–2.71)	0.33
Age (years)	< 60	1.78 (1.19–2.68)	0.005	< 0.001
	≥ 60	1.81 (1.10–2.98)	0.02
BMI (kg/m²)	< 24	2.05 (1.39–3.04)	< 0.001	< 0.001
	≥ 24	2.02 (1.20–3.40)	0.008
Hypertension	Yes	2.20 (1.17–4.16)	0.02	0.47
	No	2.06 (1.43–2.97)	< 0.001
Atrial fibrillation	Yes	1.81 (1.10–2.97)	0.02	< 0.001
	No	1.61 (1.07–2.44)	0.02
LBBB	Yes	2.74 (1.38–5.43)	0.004	< 0.001
	No	1.77 (1.24–2.51)	0.002
LVEF (%)	< 30	1.45 (1.03–2.05)	0.04	< 0.001
	≥ 30	4.98 (2.11–11.81)	< 0.001
LGE presence	Yes	1.76 (1.20–2.58)	0.004	< 0.001
	No	1.79 (1.05–3.08)	0.03
ECV (%)	≥ 30.8	1.56 (1.06–2.32)	0.02	< 0.001
	< 30.8	2.54 (1.36–4.78)	0.004

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