Dietary patterns are associated with lung function among Spanish smokers without respiratory disease

作者：Sorli Aguilar Mar; Martin Lujan Francisco^*; Flores Mateo Gemma; Arija Val Victoria; Basora Gallisa Josep; Sola Alberich Rosa

来源：BMC Pulmonary Medicine, 2016, 16(1): 162.

DOI：10.1186/s12890-016-0326-x

• Lung function test
• Dietary patterns
• Tobacco smoke

Background: Diet can help preserve lung function in smokers, in addition to avoidance of smoking. The study aimed to evaluate associations between dietary patterns and lung function in smokers without respiratory disease.
Methods: This cross-sectional study analysed baseline data from randomised representative smokers without respiratory disease (n = 207, aged 35-70 years), selected from 20 primary health-care centres. Participants completed a validated semi-quantitative food-frequency questionnaire. Dietary patterns were identified by Principal Component Analysis (PCA). Impaired lung function was defined as FVC < 80% and/or FEV1 < 80% of predicted value and/or FEV1/FVC < 0.7. Associations were determined by logistic regression.
Results: Three major dietary patterns were identified. In multivariate-adjusted model, impaired lung function was associated with the Alcohol-consumption pattern (OR 4.56, 95% CI 1.58-13.18), especially in women (OR 11.47, 95% CI 2.25-58.47), and with the Westernised pattern in women (OR 5.62, 95% CI 1.17-27.02), whereas it not was associated with the Mediterranean-like pattern (OR 0.71, 95% CI 0.28-1.79).
Conclusion: In smokers without respiratory disease, the Alcohol-consumption pattern and the Westernised pattern are associated with impaired lung function, especially in women. The Mediterranean-like pattern appears to be associated with preserved lung function because no statistical association is observed with impaired lung function. In addition to smoking cessation, modifying dietary patterns has possible clinical application to preserve lung function.

• 出版日期2016-11-25