Table 1.

Baseline characteristics of patients undergoing MitraClip implantation

	Total population 2009–2016
	(n = 1151)
Male, n (%)	684 (59)
Age, median (IQR)	76 (69–82)
Etiology MR
Degenerative, n (%)	198 (17)
Functional, n (%)	832 (72)
Mixed, n (%)	118 (10)
Unknown, n (%)	3 (0.3)
Severity of MR at baseline
Moderate, n (%)	19 (2)
Moderate-to-severe, n (%)	388 (34)
Severe, n (%)	744 (65)
LVEF <30%, n (%)	500 (43)

IQR interquartile range, MR mitral regurgitation, LVEF left ventricular ejection fraction