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Chen, Wenjia; FitzGerald, J. Mark; Rousseau, Roxanne; Lynd, Larry D.; Tan, Wan C.; Sadatsafavi, Mohsen

<b>Abstract</b><br/>Objectives: Many patients with asthma spend time and resources consuming complementary and alternative medicines (CAMs). This study explores whether CAM utilization is associated with asthma control and the intake of asthma controller medications. Design: Population-based, prospective cross-sectional study Setting: general population residing in two census areas in the province of British Columbia, Canada. Recruitment was based on random-digit dialing of both landlines and cell phones. Participants: 486 patients with self-reported physician-diagnosis of asthma (mean age 52 years; 67.3% female). Primary and secondary outcome measures: We assessed CAM use over the previous 12 months, level of asthma control as defined by the Global Initiative for Asthma (GINA), and the self-reported intake of controller medications. Multivariate logistic regression was performed to study the relationship between any usage of CAMs (outcome), asthma control and controller medication usage, adjusted for potential confounders. Results: A total of 179 (36.8%) of the sample reported CAM usage in the past 12 months. Breathing exercises (17.7%), herbal medicines (10.1%), and vitamins (9.7%) were the most popular CAMs reported. After adjustment, female sex (OR: 1.66; 95% CI: 1.09-2.52) and uncontrolled asthma( vs. controlled asthma, OR: 2.25, 95% CI: 1.30-3.89) were associated with a higher likelihood of using any CAMs in the past 12 months. Controller medication use was not associated with CAM usage in general and in the subgroups defined by asthma control. Conclusion: Clinicians and policy makers need to be aware of the high prevalence of CAM use in patients with asthma and its association with lack of asthma control.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Full dataset for CAM manuscript (bmjopen-2013-003360.R1)</h4><div class="o-metadata__file-description">This dataset contains the complete information for the statistical analysis of this publication. The data were collected in the field. The titles of variables were self-explanary. For binary variables, "Yes" was commonly coded as 1 and "No" as 0. For the variable of asthma control ("Control"), "controlled" was coded as 0, "partially controlled" as 1 and "uncontrolled" as 2. "CAM_types" reported all different types of complementary and alternative asthma medicines which the patients received in the past 12 months.</div><div class="o-metadata__file-name">CAMpaper_fulldata.xlsx</br></div></div>

Canada; British Columbia

Dryad version number: 1</p>

Version status: submitted</p>

Dryad curation status: Published</p>

Sharing link: https://datadryad.org/stash/share/gnxf86spVNGecpY2qjLWGS4X9Z_xn0LeznlfEENFmd0</p>

Storage size: 108360</p>

Visibility: public</p>

University of British Columbia Library

10.14288/1.0397806

https://doi.org/10.5683/SP2/MI4CEF; https://doi.org/10.5061/dryad.8bv8p

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