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Wellness coaching and health-related quality of life: a case-control difference-in-differences analysis
Jyothi Menon1, Mindy Paulet, Joseph Thomas
1College of Pharmacy, and Regenstrief Center for Healthcare Engineering, Center for Health Outcomes Research and Policy, Purdue University, West Lafayette, IN, USA.
Objectives:
Association between wellness coaching and changes in health-related quality of life over 1 year and 2 years was assessed.
Methods:
Difference-in-differences analysis of covariance assessed association between coaching and change in 8-item short-form health survey (SF-8) summary scores. Ordered logistic models assessed coaching and change in SF-8 individual domain scores. This was a case-control study.
Results:
Participants in at least one coaching program were more likely to have increases in social functioning after 1 year and less likely to have increases in role physical after 2 years. Participants in nutrition coaching had more positive change in mental component summary scores after 1 year. Participants in stress management had more negative change in mental component summary scores after 1 year and after 2 years and had more negative change in physical component summary scores after 2 years.
Conclusions:
Findings were mixed regarding association between coaching and change in health-related quality of life.
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