A randomised controlled trial to determine if the additional assessment and communication of lung age or feedback on exhaled carbon monoxide levels among smokers in primary care increases their likelihood of quitting smoking compared to giving very brief smoking cessation advice alone?
RESEARCH QUESTION
Does additional assessment and communication of lung age or feedback on exhaled CO levels among smokers in primary care increase their likelihood of quitting smoking compared to giving very brief smoking cessation advice (VBA) alone?
Population:
Current smokers, age 35+, smoking at least 10 cigarettes per day
Intervention:
(1) VBA with additional communication of lung age
(2) VBA with additional communication of exhaled CO
Comparator:
VBA alone
Primary and secondary outcomes:
Primary outcome – Proportion who are quit at 1 month (prolonged abstinence, confirmed CO≤10ppm).
Secondary outcomes – Proportion who have made a quit attempt at 1 month, proportion who quit smoking at 6 months (prolonged abstinence, confirmed CO≤10ppm), proportion who have reduced the number of cigarettes smoked per day at 1 month and 6 months, motivation to quit at 1 month and 6 months, quality of life at 1 month and 6 months.
Process/implementation measures:
Fidelity, acceptability, compliance/response to intervention, cost effectiveness.
Study type:
Randomised controlled trial with process and cost effectiveness analysis.