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Table 2 Mean scores and correlations among hospital anxiety and depression scale, perceived stress scale, cardiac self-efficacy scale and health-related quality of life

From: Independent predictors of physical health in community-dwelling patients with coronary heart disease in Singapore

Variables Mean (SD) Pearson’s correlation
Physical component summary Mental component summary
HADS    
 HADS_Anxiety 3.36 (3.60) −0.36* −0.57*
 HADS_Depression 3.05 (2.95) −0.51* −0.56*
Perceived stress scale 11.33 (7.11) −0.43* −0.57*
Cardiac self-efficacy scale    
 Controlling symptoms 3.17 (0.73) 0.35* 0.25*
 Maintaining functioning 3.03 (0.95) 0.54* 0.42*
SF-12v 2    
 Physical component summary 46.35 (8.71) 1 0.34*
 Mental component summary 50.30 (9.22) 0.34* 1
  1. HADS Hospital Anxiety and Depression Scale, SF-12 V2 Short Form 12-item health survey version 2.
  2. *p < 0.05