Abstract
Background: Lung function throughout adulthood predicts morbidity and mortality even among adults without chronic respiratory disease. Diet quality may represent a modifiable risk factor for lung function impairment later in life. We investigated associations between nutritionally-rich plant-centered diet and lung function across early and middle adulthood from the Coronary Artery Risk Development in Young Adults (CARDIA) Study. Methods: Diet was assessed at baseline and years 7 and 20 of follow-up using the validated CARDIA diet history questionnaire. Plant-centered diet quality was scored using the validated A Priori Diet Quality Score (APDQS), which weights food groups to measure adherence to a nutritionally-rich plant-centered diet for 20 beneficially rated foods and 13 adversely rated foods. Scores were cumulatively averaged over follow-up and categorized into quintiles. The primary outcome was lung function decline, including forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC), measured at years 0, 2, 5, 10, 20, and 30. We estimated the association of APDQS with annual pulmonary function changes and cross-sectional differences in a repeated measures regression model, adjusting for clinically relevant covariates. Results: The study included 3,787 Black and White men and women aged 18–30 in 1985–86 and followed for 30 years. In multivariable repeated measures regression models, individuals in the lowest APDQS quintile (poorest diet) had declines in FEV1 that were 1.6 ml/year greater than individuals in the highest quintile (35.0 vs. 33.4 ml/year, ß ± SE per 1 SD change APDQS 0.94 ± 0.36, p = 0.009). Additionally, declines in FVC were 2.4 ml/year greater in the lowest APDQS quintile than those in the highest quintile (37.0 vs 34.6 ml/year, ß ± SE per 1 SD change APDQS 1.71 ± 0.46, p < 0.001). The association was not different between never and ever smokers (pint = 0.07 for FVC and 0.32 for FEV1). In sensitivity analyses where current asthma diagnosis and cardiorespiratory fitness were further adjusted, results remained similar. Cross-sectional analysis at each exam year also showed significant differences in lung function according to diet after covariate adjustment. Conclusions: In this 30-year longitudinal cohort study, long-term adherence to a nutritionally-rich plant-centered diet was associated with cross-sectional differences in lung function as well as slower decline in lung function, highlighting diet quality as a potential treatable trait supporting long-term lung health.
Original language | English (US) |
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Article number | 122 |
Journal | Respiratory Research |
Volume | 25 |
Issue number | 1 |
DOIs | |
State | Published - Dec 2024 |
Funding
Mariah K. Jackson, Yuni Choi, Elliot Eisenberg, Corrine Hanson, Bian Liu, Robert Wharton, and David R. Jacobs have no interests to disclose. Jing Gennie Wang has received funding from the American Lung Association Early Career Investigator Award. George R. Washko reports serving on an advisory committee for Boehringer Ingelheim, CSL Behring, GlaxoSmithKline and Vertex; personal fees from Boehringer Ingelheim, CSL Behring, Janssen, Novartis, PulmonX and Vertex; serving on a data safety and monitoring board for PulmonX; received research support from Boehringer Ingelheim, BTG and Janssen, all outside the submitted work; has ownership and investment interest in Quantitative Image Solutions; and his spouse is an employee of Biogen. Ravi Kalhan reports receiving grant support, consulting fees, and lecture fees from Boehringer Ingelheim and GlaxoSmithKline, grant support from PneumRx/BTG and Spiration, grant support and consulting fees from Astra-Zeneca, and consulting fees from CVS Caremark, Aptus Health, Boston Scientific, and Boston Consulting Group. Sonali Bose has received funding from the National Institutes of Health. She also receives research support from 4D Medical and the American Lung Association. The Coronary Artery Risk Development in Young Adults Study (CARDIA) is supported by contracts HHSN268201800003I, HHSN268201800004I, HHSN268201800005I, HHSN268201800006I, and HHSN268201800007I from the National Heart, Lung, and Blood Institute (NHLBI). The CARDIA Lung Study was supported by a grant from the National Heart, Lung, and Blood Institute (R01 HL122477). The Coronary Artery Risk Development in Young Adults Study (CARDIA) is conducted and supported by the National Heart, Lung, and Blood Institute (NHLBI) in collaboration with the University of Alabama at Birmingham (HHSN268201800005I & HHSN268201800007I), Northwestern University (HHSN268201800003I), University of Minnesota (HHSN268201800006I), and Kaiser Foundation Research Institute (HHSN268201800004I). This manuscript has been reviewed by CARDIA for scientific content.
Keywords
- Diet
- Epidemiological study
- Longitudinal changes in lung function
- Lung function
- Lung function in epidemiology
- Respiratory epidemiology
ASJC Scopus subject areas
- Pulmonary and Respiratory Medicine