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Objective: To evaluate the cost-effectiveness of a technology-based physical activity (PA) intervention for chronic obstructive pulmonary disease (COPD). Design: A secondary data analysis was performed from a randomized controlled trial in COPD of an activity monitor alone or an activity monitor plus a web-based PA intervention. Models estimated cost per quality-adjusted life year (QALY) and incremental cost-effectiveness ratios (ICERs) compared with usual care. Results: The estimated ICER for both groups was below the willingness-to-pay threshold of 50, 000/QALY (activity monitor alone = 10, 437/QALY; website plus activity monitor intervention = 13, 065/QALY). A probabilistic simulation estimated 76% of the activity monitor-alone group and 78% of the intervention group simulations to be cost-effective. Conclusion (s): Both the activity monitor-alone group and the activity monitor plus website group were cost-effective at the base case by using conventional willingness-to-pay thresholds. Further research would benefit from a more direct estimate of health utilities and downstream health care costs. Clinical Trials. gov NCT01102777.
Ney et al. (Wed,) studied this question.