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Table 1 Associations between baseline demographic/clinical variables and six month health-related quality of life (HRQoL) outcomes (N=294)

From: Predictors of physical and mental health-related quality of life outcomes among myocardial infarction patients

   Physical HRQoL Mental HRQoL
Characteristic N Mean (SD) Mean diff p Mean (SD) Mean diff p
    (95% CI)    (95% CI)  
Age        
  Age ≤60 141 47.7 (10.2)    48.5 (11.3)   
  Age >60 153 43.5 (11.8) -4.2 (-6.8, -1.7) 0.001 52.4 (10.7) 3.9 (1.4, 6.4) <0.01
Gender        
  Female 62 44.1 (11.8)    48.3 (12.7)   
  Male 232 45.9 (11.1) 1.8 (-1.4, 5.0) 0.27 51.1 (10.6) 2.8 (-0.3, 5.9) 0.08
Marital Status        
  Not married 87 44.3 (11.6)    50.5 (11.9)   
  Married/de-facto relationship 207 46.0 (11.1) 1.8 (-1.1, 4.6) 0.22 50.62 (10.8) 0.1 (-2.7, 2.9) 0.92
Education        
  Did not complete high school 52 42.2 (10.8)    49.6 (14.0)   
  Completed at least high school 242 46.2 (11.2) 4.0 (0.7, 7.4) 0.02 50.7 (10.4) 1.1 (-2.2, 4.5) 0.51
Employment        
  Unemployed/Retired 154 41.2 (12.1)    48.4 (12.2)   
  Employed 140 48.8 (9.5) 7.6 (3.8, 11.4) <0.001 50.1 (10.0) 1.7 (-2.1, 5.5) 0.39
Income        
  Income <AUD$65,000/annuma 196 44.0 (12.2)    50.9 (11.0)   
  Income ≥AUD$65,000/annuma 63 50.2 (7.5) 6.2 (3.0, 9.4) <0.001 49.2 (11.4) -1.7 (-4.9, 1.4) 0.28
Medical Procedureb        
  Non-invasive procedure (e.g. angiogram) 98 44.3 (11.7)    51.1 (11.5)   
  Percutaneous coronary intervention 153 45.8 (11.2) 1.5 (-1.4, 4.4)   50.8 (10.5) -0.3 (-3.2, 2.6)  
  Coronary bypass surgery 27 46.9 (10.6) 2.6 (-2.3, 7.5) 0.29 48.4 (14.0) -2.7 (-7.5, 2.1) 0.27
Participation in another cardiac rehabilitation program        
  No 210 46.1 (9.6)    49.3 (12.4)   
  Yes 84 44.5 (10.9) 1.3 (-1.6, 4.1) 0.39 50 5 (10.1) -1.6 (-4.5, 1.2) 0.26
Family History of Heart Diseasec        
  No 91 47.0 (10.0)    52.3 (10.1)   
  Yes 192 44.9 (11.7) -2.2 (-0.6, 5.0) 0.12 50.0 (11.5) -2.3 (-0.5, 5.1) 0.10
Diabetes        
  No 226 46.6 (10.4)    51.0 (10.4)   
  Yes 68 41.9 (13.0) -4.7 (-1.6, -7.7) <0.01 49.0 (13.2) -2.0 (-5.1, 1.0) 0.18
Hypertension        
  No 132 47.4 (10.3)    51.0 (10.2)   
  Yes 162 44.0 (11.8) -3.3 (-5.9, -0.8) 0.01 50.1 (11.9) -0.9 (-3.4, 1.7) 0.51
Body Mass Index, kg/m2 d        
  Healthy weight 81 47.5 (10.0)    49.0 (11.1)   
  Overweight 100 46.0 (11.5) -1.5(-4.8, 1.8)   52.1 (10.0) 3.1 (-0.2, 6.4)  
  Obese 84 43.3 (12.0) -4.2(-7.6, -0.8) 0.02 48.6 (12.5) -0.4 (-3.8, 3.1) 0.83
Waist circumference, cme        
  Healthy waist (<80 cm: women, <94 cm: men) 85 47.2 (10.1)    50.3 (10.4)   
  Increased risk (≥80 cm: women, ≥94 cm: men) 189 44.9 (11.6) -2.3(-5.2, 0.6) 0.12 50.7 (11.4) 0.3 (-2.5, 3.2) 0.82
Randomisation to group        
  Intervention 141 44.8 (11.8)    51.8 (9.8)   
  Usual care 153 46.1 (10.7) -1.3 (-3.9, 1.3) 0.33 49.3 (12.1) 2.5 (-0.0, 5.1) 0.04
  1. Due to missing data: aN=259, bN=278, cN=283, dN=265, eN=274.