Waist to height ratio is associated with an increased risk of mortality in Chinese patients with heart failure with preserved ejection fraction

Table 2 Outcome in HFpEF patients by WHtR category

	Low-WHtR (N = 378)	High-WHtR (N = 1663)	p-value
All-cause death
N	21	164
Event rate	5.56	9.86
Unadjusted HR (95% CI)	1.00 (ref)	1.57(1.06–2.31)	0.045
Model 1: adjusted HR (95% CI)	1.00 (ref)	1.40(0.89–2.21)	0.151
Model 2: adjusted HR (95% CI)	1.00 (ref)	1.91(1.06–3.45)	0.032
Cardiovascular death
N	9	70
Event rate	2.38	4.21
Unadjusted HR (95% CI)	1.00 (ref)	1.52(0.83–2.75)	0.236
Model 1: adjusted HR (95% CI)	1.00 (ref)	1.33(0.66–2.66)	0.429
Model 2: adjusted HR (95% CI)	1.00 (ref)	2.58(1.01–6.67)	0.048
Non-cardiovascular death
N	12	94
Event rate	3.18	5.65
Unadjusted HR (95% CI)	1.00 (ref)	1.61(0.97–2.66)	0.118
Model 1: adjusted HR (95% CI)	1.00 (ref)	1.45(0.79–2.65)	0.232
Model 2: adjusted HR (95% CI)	1.00 (ref)	1.51(0.71–3.22)	0.285
Heart failure rehospitalization
N	11	83
Event rate	2.91	4.99
Unadjusted HR (95% CI)	1.00 (ref)	1.51(0.88–2.60)	0.195
Model 1: adjusted HR (95% CI)	1.00 (ref)	1.29(0.69–2.43)	0.427
Model 2: adjusted HR (95% CI)	1.00 (ref)	3.04(1.26–7.31)	0.013

HFpEF, heart failure with preserved ejection fraction; WHtR, waist to height ratio; HR, hazard ratio; CI, confidence interval

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