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Table 1 Demographical, medical and psychological characteristics at baseline of patients receiving Standard Medical Care (SMC; 44), Supportive Intervention (SUPPORT; 39) or Expectation Manipulation Intervention (EXPECT; 39)

From: Preoperative optimization of patient expectations improves long-term outcome in heart surgery patients: results of the randomized controlled PSY-HEART trial

  SMC SUPPORT EXPECT Test statistic
Age in years, median (SD) 67.07 (8.9) 64.62 (8.1) 65.76 (7.8) F(2, 112) = 0.856; P = 0.427
Sex, male, n (%) 36 (87.8) 30 (81) 32 (86.5) χ 2 (2) = 0.768; P = 0.681
Education, high school, n (%) (MD = 1) 7 (17.1) 10 (27) 10 (27) χ 2 (2) = 1.304; P = 0.521
Marital status, married, n (%) (MD = 1) 33 (80.5) 34 (91.9) 31 (83.8) χ 2 (2) = 2.097; P = 0.350
BMI, median (SD) (MD = 3) 29.67 (5.2) 29.5 (6.6) 29.03 (5.01) F(2, 109) = 0.13; P = 0.876
Smoking status, n (%) 6 (14.6) 2 (5.4) 6 (16.2) χ 2 (2) = 2.383; P = 0.304
EuroSCORE II, median (SD) (MD = 11)a 1.53 (0.8) 1.47 (0.8) 1.25 (0.8) F(2, 101) = 2.30; P = 0.105
NYHA, n (%) (MD = 10)     χ 2 (6) = 4.644; P = 0.590
 I 1 (2.4) 1 (2.7) 0 (0)  
 II 9 (22.0) 11 (29.7) 12 (32.4)  
 III 28 (68.3) 20 (54.1) 17 (45.9)  
 IV 1 (2.4) 2 (5.4) 3 (8.1)  
LVEF, n (%) (MD = 9)     χ 2 (4) = 9.944; P = 0.041
  ≥ 50 23 (48.8) 19 (51.4) 30 (78.4)  
 49–30 13 (31.7) 13 (35.1) 4 (10.8)  
  < 30 2 (4.9) 2 (5.4) 0 (0)  
Previous myocardial infarction, n (%) (MD = 5) 9 (23.1) 6 (17.1) 6 (16.7) χ 2 (4) = 2.398; P = 0.663
Combined surgery, n (%) 6 (14.6) 6 (16.2) 3 (8.1) χ 2 (2) = 1.214; P = 0.545
Current mental disorder, n (%) (MD = 1) 4 (9.8) 5 (13.5) 8 (21.6) χ 2 (2) = 2.130; P = 0.345
Anxiety, median (SD) (MD = 7)b 4.03 (3.0) 4.55 (3.2) 5.17 (5.0) F(2, 105) = 0.838; P = 0.435
Depression, median (SD) (MD = 8)c 4.59 (3.1) 4.0 (3.1) 5.11 (4.0) F(2, 104) = 0.894; P = 0.412
Disability, median (SD) (MD = 3)d 22.78 (13.8) 22.14 (15.3) 25.89 (15.0) F(2, 110) = 0.683; P = 0.507
Mental quality of life, median (SD) (MD = 7)e 48.96 (9.9) 51.6 (8.7) 47.98 (12.8) F(2, 105) = 1.081; P = 0.343
Physical quality of life, median (SD) (MD = 5)f 40.26 (10.5) 39.55 (11.0) 37.15 (9.2) F(2, 107) = 0.920; P = 0.402
gPhysical activity, median (SD) (MD = 20) 2668.4 (2146.2) 2635.5 (2806) 2433.6 (3339.5) F(2, 92) = 0.067; P = 0.935
hCardiac anxiety, median (SD) (MD = 4) 2.48 (0.6) 2.68 (0.6) 2.67 (0.7) F(2, 108) = 1.260; P = 0.288
  1. a EuroSCORE European System for Cardiac Operative Risk Evaluation; untransformed data is displayed to facilitate interpretation; statistical analyses are based on log-transformed data
  2. bAnxiety (Hamilton Anxiety and Depression Scale; HADS) range = 0–21
  3. cDepression (HADS) range = 0–21
  4. dDisability (Pain Disability Index) range = 0–70
  5. eMental quality of life (Mental component of the Short-Form Health Survey (SF-12))
  6. fPhysical quality of life (Physical component of the SF-12)
  7. gPhysical activity (International Physical Activity Questionnaire, weighted estimate of total physical activity per week
  8. hCardiac Anxiety Questionnaire, range = 0–4
  9. SMC Standard Medical Care, SUPPORT Supportive Intervention, EXPECT Expectation Manipulation Intervention, BMI body mass index, NYHA New York Heart Association functional classification, LVEF left ventricular ejection fraction, MD missing data