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Table 3 Description of additional metrics to be measured in the study

From: A recommender system to quit smoking with mobile motivational messages: study protocol for a randomized controlled trial

Metric

Calculation

Pilot

User reliability

Comparison of the abstinence self-report at 2-week intervals with the measurements of the CO-oximeter

Clinical

QALY (financial aspects)

Healthcare resource utilization and cost analysis (cost of devices used, pharmacological treatment and time spent for various purposes)

Clinical

Precision of the recommender system

Messages sent and rated more than four stars / total number of rated messages

Public

Clinical

Smoke-free period

Time range between quitting date and the last smoke-free report

Clinical

  1. CO carbon monoxide, QALY quality-adjusted life year