چکیده (انگلیسی):

Background:Spirometry is the recommended method of evaluating pulmonary function when respiratory disease
is suspected in smokers. Nonetheless, no evidence exists of the usefulness of information obtained from this test as
a motivational strategy for smoking cessation. The primary objective of this study is to evaluate the effectiveness of
a motivational intervention based on spirometry results in achieving long-term smoking cessation.
Methods/Design:We propose a multicenter randomized clinical trial in the primary care setting.Study subjects:
We will recruit active smokers of both sexes, aged 35-70years, with a cumulated smoking habit exceeding 10
packs/year and who consult for any reason with their primary care physician in the 20 health centers in the
province of Tarragona (Spain). Patients with a history of lung disease or who have undergone exploratory
measures of pulmonary function in the preceding 12 months will be excluded. All patients who agree to participate
will provide signed informed consent prior to their inclusion. A total of 1000 smokers will be consecutively randomized
to a control or intervention group (1:1).Intervention: Participants in both groups will receive brief (5-minute) health
counseling, in accordance with usual clinical practice. In a consultation lasting about 15 minutes, participants in the
intervention group will also receive detailed, personalized information about the results of a spirometry test and about
their lung age compared with their chronological age. Both groups will be followed up for 12 months.Main variables
and analysis:The main variable will be sustained smoking abstinence at 12 months after the intervention, as confirmed
by CO breath testing and urine cotinine test. Results will be analyzed based on intention to treat, using the chi-square
test and logistical regression if necessary to adjust for confounding variables.
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* Correspondence:tsantigosa.hj23.ics@gencat.cat
1
Study Group on Respiratory Tract Diseases (GEPAR), Institut Universitari
d’Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Barcelona,
Spain
2
School of Medicine and Health Sciences, Universitat Rovira i Virgili,
Tarragona, Spain
Full list of author information is available at the end of the article
© 2016 Martin-Lujan et al.Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0
International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and
reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to
the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver
(http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Martin-Lujanet al. BMC Family Practice (2016) 17:15
DOI 10.1186/s12875-016-0415-1
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Discussion:We expect the rate of prolonged smoking abstinence in the intervention group will be at least 5 % higher
than in the control group. If this strategy proves effective, it could easily be included in the health promotion activities
offered in primary care settings.
Trial registration:ClinicalTrials.gov Identifier: NCT02153047. Registered on 28/05/2014