Background Measuring self-reported experience of health and functioning is important for understanding the changes in the health status of individuals switching from cigarettes to less harmful tobacco and/or nicotine products (TNP) or reduced-risk products (RRP) and for supporting tobacco harm reduction strategies. Methods This paper presents insights from three research activities from the preparatory phase of the development of a new self-report health and functioning measure. A scoping literature review was conducted to identify the positive and negative impact of TNP use on health and functioning. Focus groups (n = 29) on risk perception and individual interviews (n = 40) on perceived dependence in people who use TNPs were reanalyzed in the context of health and functioning, and expert opinion was gathered from five key opinion leaders and five technical consultants. Results Triangulating the findings of the review of 97 articles, qualitative input from people who use TNPs, and expert feedback helped generate a preliminary conceptual framework including health and functioning and conceptually-related domains impacted by TNP use. Domains related to the future health and functioning measurement model include physical health signs and symptoms, general physical appearance, functioning (physical, sexual, cognitive, emotional, and social), and general health perceptions. Conclusions This preliminary conceptual framework can inform future research on development and validation of new measures for assessment of overall health and functioning impact of TNPs from the consumers’ perspective.

BACKGROUND: The Stages of Change (SOC) measure and Motivation To Stop Scale (MTSS) are regularly used to capture current smokers’ intention to quit (ITQ) cigarette smoking. They were shown to have comparable performances in construct and predictive validity, but their immediate test-retest reliabilities have not been investigated. In this randomized online two-arm study, we examined the immediate test-retest reliability of both SOC and MTSS measures. METHODS: Adult current smokers were randomized to complete an electronic version of either the SOC or MTSS, which was filled out before and after completing a filler task. Test-retest reliability was assessed with Cohen’s kappa coefficients. Intraclass correlation coefficients (ICC) were calculated as an index of reliability for the MTSS, when expressed as a continuous variable. RESULTS: A total of 722 participants were included in the analyses, with 311 and 411 completing the SOC and MTSS, respectively. The two measures showed high reliability; Cohen’s kappa coefficients of the ITQ measures ranged from 0.73 to 0.95, corresponding to substantial agreement up to “almost perfect” or “perfect” agreement. The ICC coefficient for the MTSS was 0.86, corresponding to excellent agreement. CONCLUSIONS: Both measures have good test-retest reliability over a brief time interval. Instrument selection should be driven by the specific study objective and whether the investigation is intended to measure ITQ specifically or more broadly.

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