Psychological assessments for cardiac rehabilitation patients.

ABSTRACT

Psychological and quality of life measures are important in the assessment of cardiac rehabilitation (CR) patients and the outcome of treatment. This study aimed to assess the utility and sensitivity to change of three simple questionnaires in a CR setting. A total of 1403 patients who entered CR over 51 months were studied. Patients completed questionnaires before and after their phase 3 CR program-Hospital Anxiety and Depression (HAD) scale, WONCA/COOP charts and an analogue score of wellbeing. The three instruments took about 5.5 min in total to complete and 30 s to interpret. There were highly significant reductions in mean anxiety score-from 6.04 to 4.67 (P<0.001, 95% CI -1.52 to -1.16) and depression from 4.00 to 2.52 (P<0.001, 95% CI -1.62 to -1.29) The mean analogue of wellbeing score improved from 7.09 to 8.19 (P<0.001, 95% CI 0.97-1.22 ) There were highly significant improvements in five of the six WONCA domains. There were significant correlations between improvements in scores from all instruments. The sensitivity indices were in the 'good' range for changes in WONCA physical fitness domain and subjective well-being score and in the (moderate) range for changes in depression, well-being and WONCA overall health. Initial physical fitness was significantly correlated with the initial levels of all psychometric scores except anxiety and WONCA feelings, but improvements in fitness were not correlated with any changes in psychometric scores. The instruments described were quick to administer and to interpret and showed sensitivities to change superior to those which have been reported for other questionnaires. We believe them to be practical tools for use in CR units.