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. 2022 Oct 28;19(10):761–767. doi: 10.11909/j.issn.1671-5411.2022.10.004

Table 1. Clinical characteristics and echocardiographic parameters of the study population.

Characteristics All (n = 340) Oldest-old (n = 54) Younger (n = 286) P-value
Data are presented as n (%). *Presented as median (interquartile range). NYHA: New York Heart Association.
Clinical characteristics
 Age, yrs 78 (73–82)* 86 (86–88)* 77 (71–81)* < 0.001
 Male 218 (64.1%) 34 (62.9%) 184 (64.3%) 0.82
 Primary mitral regurgitation 98 (28.8%) 24 (44.4%) 74 (25.8%) 0.006
 Ischemic cardiomyopathy 180 (52.9%) 21 (38.9%) 159 (55.6%) 0.012
 Previous coronary artery bypass graft 82 (24.1%) 6 (11.1%) 76 (26.6%) 0.03
 Previous percutaneous coronary intervention 166 (48.8%) 27 (50%) 139 (48.6%) 0.96
 Non-ischemic cardiomyopathy 68 (20%) 9 (16.7%) 59 (20.6%) 0.43
 Diabetes mellitus 106 (31.2%) 10 (18.5%) 96 (33.5%) 0.019
 Arterial hypertension 266 (78.2%) 42 (77.8%) 224 (78.3%) 0.56
 Atrial fibrillation 239 (70.2%) 43 (79.6%) 196 (68.5%) 0.20
 Estimated glomerular filtration rate < 60 mL/min 225 (66.1%) 45 (83.3%) 180 (62.9%) 0.01
 Dialysis 18 (5.3%) 2 (3.7%) 16 (5.6%) 0.53
 Peripheral artery disease 85 (25%) 20 (37%) 65 (22.7%) 0.10
 Chronic obstructive pulmonary disease 131 (38.5%) 18 (33.3%) 113 (39.5%) 0.26
 NYHA class 0.14
  I
  II 40 (11.7%) 6 (11.1%) 34 (11.9%)
  III 193 (56.7%) 33 (61.1%) 160 (55.9%)
  IV 107 (31.4%) 15 (27.8%) 92 (32.2%)
Imaging characteristics
 Left ventricle ejection fraction, % 38 (28–53)* 49 (35–55)* 37 (27–50)* 0.001
 Left ventricular end diastolic diameter, mm 57 (51–64)* 53 (46–59)* 58 (51–65)* < 0.001
 Left ventricular end systolic diameter, mm 46 (37–56)* 42 (33–50)* 47 (38–57)* 0.017
 Effective regurgitant orifice area, mm² 31 (24–41)* 30 (23–40)* 31 (24–41)* 0.65
 Regurgitant volume, mL 51 (38–63)* 59 (41–77)* 51 (37–62)* 0.05
 Left atrium area, cm² 28 (23–34)* 30 (23–35)* 28 (23–34)* 0.61
 Right atrium area, cm² 23 (18–27)* 23 (19–29)* 23 (17–27)* 0.28
 Tricuspid regurgitation 0.31
  Mild 139 (40.8%) 18 (33.4%) 121 (42.4%)
  Moderate 162 (47.6%) 22 (40.7%) 140 (48.9%)
  Severe 39 (11.6%) 14 (25.9%) 25 (8.7%)
 Systolic pulmonary artery pressure 42 (34–55)* 46 (37–60)* 42 (34–53)* 0.10