Table 3.

Weighted prevalence of left ventricular dysfunction in patients with chronic kidney disease.

Characteristics	LV systolic dysfunction*			LV diastolic dysfunction*
	40% ≤ EF < 50%	EF < 40%		Mild	Moderate	Severe
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 LV dysfunction was defined based on the echocardiographic data only. **Refers to Chi-square test was used to test whether distributions of categorical variables differ from each another. EF: ejection fraction; LV: left ventricular.
Overall	1.4 (0.8-2.7)	1.7 (0.7-4.1)		70.9 (52.5-84.2)	2.4 (1.4-4.1)	6.5 (2.2-17.9)
Age, yrs
65-74	0.9 (0.4-2.2)	0.8 (0.2-2.9)		66.7 (44.5-83.3)	1.8 (0.8-3.9)	8.7 (2.7-24.4)
≥ 75	2.0 (1.0-4.2)	2.7 (1.1-6.5)		75.2 (59.3-6.7)	3.1 (1.2-7.7)	4.3 (1.5-12.0)
P-value**	0.029			0.059
Gender
Men	1.4 (0.6-3.2)	2.2 (0.7-6.7)		61.0 (40.3-78.4)	3.9 (2.1-7.1)	9.3 (3.2-24.3)
Women	1.5 (0.6-3.9)	1.4 (0.6-3.4)		78.0 (61.1-88.9)	1.3 (0.7-2.5)	4.5 (1.3-14.5)
P-value**	0.646			< 0.001
Region
Urban	1.3 (0.3-5.2)	2.2 (1.0-5.0)		87.5 (75.5-94.1)	2.7 (1.0-7.4)	2.7 (0.9-7.9)
Rural	1.6 (0.9-2.8)	1.4 (0.3-6.3)		59.2 (43.1-73.6)	2.2 (1.2-4.1)	9.2 (3.0-24.9)
P-value**	0.743			0.004