Table 2.

Weighted prevalence of heart failure in patients with chronic kidney disease.

Characteristics	HF	HF types
		HFpEF	HFmrEF	HFrEF
Data are presented as n (95% CI). All values were weighted to represent the total Chinese population aged 65 years or older based on 2010 Chinese census data. *Refers to Chi-square test was used to test whether distributions of categorical variables differ from each another. HF: heart failure; HFmrEF: heart failure with mid-range ejection fraction; HFpEF: heart failure with preserved ejection fraction; HFrEF: heart failure with reduced ejection fraction.
Overall	4.8 (3.4-6.7)	2.5 (1.5-4.2)	0.8 (0.3-2.0)	1.7 (0.7-4.1)
Age, yrs
65-74	3.9 (3.0-5.2)	2.6 (1.4-4.8)	0.8 (0.3-2.1)	0.8 (0.2-2.9)
≥ 75	5.6 (3.4-9.2)	2.5 (1.4-4.2)	0.8 (0.1-4.8)	2.7 (1.1-6.5)
P-value*	0.108	0.242
Gender
Men	6.3 (3.7-10.4)	3.6 (1.4-9.3)	0.5 (0.2-1.5)	2.2 (0.7-6.7)
Women	3.7 (2.3-5.8)	1.7 (0.7-4.2)	1.0 (0.2-4.0)	1.4 (0.6-3.4)
P-value*	0.114	0.442
Region
Urban	5.9 (3.7-9.4)	3.4 (1.5-7.5)	1.1 (0.2-5.5)	2.2 (1.0-5.0)
Rural	4.0 (2.4-6.3)	1.9 (0.8-4.3)	0.5 (0.2-1.6)	1.4 (0.3-6.3)
P-value*	0.173	0.472