Key result
Participants attending a 10-week cardiac rehabilitation program demonstrated a significant response shift in quality of life assessment, retrospectively rating their baseline functioning lower (mean difference -9.56, p<0.001).
Why the study?
Does response shift occur in the assessment of quality of life among patients attending a 10-week cardiac rehabilitation programme?
Observational (n=57)
Does response shift occur in the assessment of quality of life among patients attending a 10-week cardiac rehabilitation programme?
Mean Difference: -9.56
p-value: p=<0.001
Response shift, primarily due to recalibration, occurs during cardiac rehabilitation, and incorporating it into quality of life analysis reveals a larger treatment effect.
OBJECTIVES: To examine whether any response shift in quality of life (QoL) assessment over the course of a cardiac rehabilitation (CR) programme could be explained by changes in individuals' internal standards (recalibration), values (reprioritization), and/or conceptualization of QoL and the extent to which any response shift could be explained by health locus of control, optimism, and coping strategy. DESIGN: Longitudinal survey design. METHODS: The schedule for evaluation of individual QoL-direct weighting (SEIQoL-DW) was administered at the beginning and end of a CR programme. At the end of the programme, the SEIQoL-DW then-test was also administered to measure response shift. A total of 57 participants completed these measures and other measures to assess health locus of control, optimism, and coping. RESULTS: Response shift effects were observed in this population mainly due to recalibration. When response shift was incorporated into the analysis of QoL a larger treatment effect was observed. Active coping as a mechanism in the response shift model was found to have a significant positive correlation with response shift. CONCLUSION: This study showed that response shift occurs during CR. The occurrence of response shift in QoL ratings over time for this population could have implications for the estimation of the effectiveness of the intervention.
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Dempster et al. (2009) conducted an observational in Heart disease (attending cardiac rehabilitation) (n=57). Cardiac rehabilitation vs. Pre-test (baseline) was evaluated on Response shift (difference between then-test and pre-test QOL index) (MD -9.56, p=<0.001). Participants attending a 10-week cardiac rehabilitation program demonstrated a significant response shift in quality of life assessment, retrospectively rating their baseline functioning lower (mean difference -9.56, p<0.001).
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