Volume 23, Issue 6 pp. 576-582
Original Article

Vitamin D and respiratory health in the Busselton Healthy Ageing Study

Siobhain Mulrennan

Corresponding Author

Siobhain Mulrennan

Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia

School of Medicine and Pharmacology, University of Western Australia, Perth, WA, Australia

Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia

Correspondence: Siobhain Mulrennan, Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, Perth, WA 6009, Australia. Email: [email protected]Search for more papers by this author
Matthew Knuiman

Matthew Knuiman

Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia

School of Population and Global Health, University of Western Australia, Perth, WA, Australia

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John P. Walsh

John P. Walsh

School of Medicine and Pharmacology, University of Western Australia, Perth, WA, Australia

Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia

Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Perth, WA, Australia

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Jennie Hui

Jennie Hui

Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia

School of Population and Global Health, University of Western Australia, Perth, WA, Australia

PathWest Laboratory Medicine, Perth, WA, Australia

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Michael Hunter

Michael Hunter

Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia

School of Population and Global Health, University of Western Australia, Perth, WA, Australia

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Mark Divitini

Mark Divitini

School of Population and Global Health, University of Western Australia, Perth, WA, Australia

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Kun Zhu

Kun Zhu

School of Medicine and Pharmacology, University of Western Australia, Perth, WA, Australia

Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Perth, WA, Australia

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Brian R. Cooke

Brian R. Cooke

PathWest Laboratory Medicine, Perth, WA, Australia

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Arthur W. (Bill) Musk

Arthur W. (Bill) Musk

Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia

School of Medicine and Pharmacology, University of Western Australia, Perth, WA, Australia

Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia

School of Population and Global Health, University of Western Australia, Perth, WA, Australia

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Alan James

Alan James

School of Medicine and Pharmacology, University of Western Australia, Perth, WA, Australia

Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia

Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia

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First published: 24 January 2018
Citations: 17
(Associate Editor: Giorgio Piacentini; Senior Editor: Lutz Beckert)
See relatedEditorial

ABSTRACT

Background and objective

The relationship between vitamin D and respiratory disease was examined by cross-sectional analysis of a large community-based sample.

Methods

Serum 25-hydroxyvitamin D (25OHD) and history of respiratory disease, symptoms (recorded by questionnaire) and spirometry were measured in 5011 adults aged 45–69 years. Adjustments were made for age, sex, season and smoking (Model A), plus body mass index (BMI) and physical activity level (Model B), plus history of chronic diseases (Model C).

Results

Mean (SD) age was 58 (SD 6) years with 45% males, 10% current smokers and 12% taking vitamin D supplements. The prevalence of 25OHD level <50 nmol/L was 8.0%. In all the three models, 25OHD <50 nmol/L was significantly associated with asthma (Model C: odds ratio (OR): 1.32; 95% CI: 1.00, 1.73), bronchitis (1.54; 1.17, 2.01), wheeze (1.37; 1.10, 1.71) and chest tightness (1.42; 1.10, 1.83). Participants with vitamin D level > 100 nmol/L had higher forced vital capacity (FVC) in all the three models (1.17% higher, compared with the 50–100 nmol/L group in Model C).

Conclusion

Low levels of serum 25OHD were independently associated with asthma, bronchitis, wheeze and chest tightness after three levels of adjustment for potential confounders. Higher vitamin D levels were associated with higher levels of lung function.

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