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To the Editor A Viewpoint by Dr Rogers and colleagues1 discussed the underuse of commitment devices to improve unhealthy behaviors. The authors underlined 2 basic features of these devices: their voluntary use by patients who want to change behaviors and their reinforcement of consequences related to failed goal achievement by patients.
One of the ways that Rogers et al1 proposed to increase the uptake of these devices was by requiring patients to opt out of commitment devices. Even though I support nudge interventions to modify population health, I foresee some barriers or precautions to take when generalizing findings from studies on commitment devices.
Blondon K. Commitment Devices to Improve Unhealthy Behaviors. JAMA. 2014;312(15):1591-1592. doi:10.1001/jama.2014.10155