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Table 1 Patient characteristics

From: Comparison of flexible, open with semi-rigid, closed annuloplasty-rings for mitral valve repair

  Total
N = 1120 a
OA
N = 528 a
CA
N = 592 a
p-value
OA vs. CA
% or Median [IQR] % or Median [IQR] % or Median [IQR]  
Age in years 64.0 [54.0–73.0] 66.0 [55.0–74.0] 63.0 [54.0–72.0] 0.060
Female gender, % 41.1 42.2 40.0 0.455
BMI (kg/m2)b 25.8 [23.1–28.7] 26.1 [23.5–29.0] 25.6 [22.9–28.4] 0.035
CV risk factors
 Hypertension, % 53.1 52.5 53.7 0.675
 Dyslipidemia, % 16.0 15.0 16.9 0.386
Comorbidities general
 Diabetes mellitus, % 7.7 8.3 7.1 0.437
 Creatinine (mg/dL) 0.9 [0.7–1.0] 0.9 [0.7–1.0] 0.9 [0.7–1.1] 0.773
 Kidney failure (Crea. > 2.26 mg/dL), % 1.6 2.3 1.0 0.094
 Stroke, % 4.2 4.9 3.5 0.251
 COPD, % 11.1 11.0 11.1 0.931
 PAD, % 2.4 3.0 1.9 0.202
Comorbidity cardiac
 AF, % 29.7 28.1 31.2 0.257
 CAD, % 8.7 8.5 8.8 0.877
 Prior MI (≤ 90 days), % 0.4 0.4 0.5 1.000
 Prior CABG, % 2.9 2.8 2.9 0.975
 Prior aortic valve replacement, % 1.6 2.5 0.8 0.032
 Prior pacemaker, % 1.6 1.5 1.7 0.815
 NYHA class III/IV, % 73.6 75.1 72.3 0.281
 CCS class III/IV, % 3.8 4.7 3.0 0.141
 Pulmonary hypertension, % 10.0 11.6 8.6 0.104
Emergency indication for surgery, % 1.8 2.1 1.5 0.482
Log EuroSCORE I, % 3.3 [1.6–7.1] 3.5 [1.7–8.0] 3.0 [1.5–6.6] 0.032
  1. aAs data are largely complete, e.g., maximum of 3 out of 1120 variables missing for single variables we omitted to name the number of patients available for each variable
  2. b For BMI there is only data for 896 patients (418 with OA/ 478 with CA)
  3. AF atrial fibrillation, BMI body mass index, CABG coronary artery bypass graft, CAD coronary artery disease, CCS Canadian Cardiovascular Society, COPD chronic obstructive pulmonary disease, Crea. Creatinine, CV cardiovascular, MI myocardial infarction, NYHA New York Heart Association