Abstract
BackgroundSmoking cessation is beneficial for our health at any point in life, both in healthy people and in people already suffering from a smoking-related disease. Any help to quit smoking can produce considerable benefits for Public Health. The purpose of the present study is to evaluate the efficacy of the CO-oximetry technique together with brief advice in smoking cessation, in terms of reduction of the number of cigarettes or in the variation of the motivation to quit smoking at month 12 compared with brief advice alone.Methods/DesignRandomised, parallel, single-blind clinical trial in a primary health care setting in Majorca (Spain). Smokers in contemplation or pre-contemplation phase will be included in the study. Exclusion criteria: Smokers in preparation phase, subjects with a terminal illness or whose health status does not allow them to understand the study or complete the informed consent, and pregnant or breastfeeding women. The subjects will be randomly assigned to the control group (CG) or the intervention group (IG). The CG will receive brief advice, and the IG will receive brief advice together with a measurement of exhaled CO. There will be follow-up evaluations at 6 and 12 months after inclusion. 471 subjects will be needed per group in order to detect a difference between groups ≥ 5%. Primary outcome: sustained smoking cessation (at 6 and 12 months) confirmed by urine cotinine test. Secondary outcomes: point smoking cessation at 6 and 12 months both confirmed by urine cotinine analysis and self-reported, reduction in cigarette consumption, and variation in phase of smoking cessation.DiscussionCO-oximetry is an inexpensive, non-invasive, fast technique that requires little technical training; making it a technique for risk assessment in smokers that can be easily applied in primary care and, if proven effective, could serve as a reinforcement aid in smoking cessation intervention activities.Trial RegistrationCurrent Controlled Trials ISRCTN67499921
Highlights
Smoking cessation is beneficial for our health at any point in life, both in healthy people and in people already suffering from a smoking-related disease
CO-oximetry is an inexpensive, non-invasive, fast technique that requires little technical training; making it a technique for risk assessment in smokers that can be applied in primary care and, if proven effective, could serve as a reinforcement aid in smoking cessation intervention activities
The measurement of CO levels in exhaled air by COoximetry is an inexpensive, non-invasive, fast technique that requires little technical training [23] making it a technique for risk assessment in smokers that can be applied in primary care and, if proven effective, could serve as a reinforcement aid in smoking cessation intervention activities
Summary
Smoking cessation is beneficial for our health at any point in life, both in healthy people and in people already suffering from a smoking-related disease. The purpose of the present study is to evaluate the efficacy of the CO-oximetry technique together with brief advice in smoking cessation, in terms of reduction of the number of cigarettes or in the variation of the motivation to quit smoking at month 12 compared with brief advice alone. Tobacco smoking is the first cause of avoidable death in industrialised countries [1]. It has been known for many years that the negative effects of tobacco smoking on health are numerous [2,3]. Tobacco smoking is involved in the appearance of different types of cancer. It is the main risk factor for cardiovascular disease, the most common known cause of chronic obstructive pulmonary disease, and many other health problems. Smoking cessation is not an easy task, given that nicotine is a drug that generates great addiction [5]
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