Dietary factors associated with lifetime asthma or hayfever diagnosis in Australian middle-aged and older adults: a cross-sectional study

Nutrition Journal

Research

Sara K Rosenkranz¹  Kelly JJ Neessen²  Richard R Rosenkranz³ 

[1] Department of General Practice, University of Western Sydney, Campbelltown, NSW, Australia;Department of Human Nutrition, Kansas State University, Manhattan, KS, USA;Department of Human Nutrition, Wageningen University, Wageningen, The Netherlands;School of Science and Health, University of Western Sydney, Campbelltown, NSW, Australia;Department of Human Nutrition, Kansas State University, Manhattan, KS, USA;

关键词: Asthma;    Hayfever;    Airway health;    Diet;    Western diet;    Meat;    Adult;    Older adult;   

DOI  :  10.1186/1475-2891-11-84

 received in 2012-03-20, accepted in 2012-10-10,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundThere is abundant research relevant to genetic and environmental influences on asthma and hayfever, but little is known about dietary risk factors in Australian adults. This study’s purpose was to identify dietary factors associated with lifetime asthma (AS) and asthma or hayfever (AS/HF) diagnosis in Australian middle-aged and older adults.MethodsFrom The 45 and Up Study baseline self-report data, this study included 156,035 adult men and women. Participants were sampled from the general population of New South Wales, Australia in 2006–2009. About 12% of participants reported ever receiving an AS diagnosis (men 10%; women 14%) and 23% reported AS/HF diagnosis (men 19%; women 26%). Following principle components factor analysis, dietary items loaded onto one of four factors for men (meats/cheese; fruits/vegetables; poultry/seafood; grains/alcohol) or five factors for women (meats; fruits/vegetables; poultry/seafood; cereal/alcohol; brown bread/cheese). Logistic regression was used to analyze the associations between dietary factors and AS or AS/HF diagnosis.ResultsFor men, the meats/cheese factor was positively associated with AS (AOR = adjusted odds ratio for highest versus lowest quintile = 1.18, 95%CI = 1.08, 1.28; Ptrend = 0.001) and AS/HF (AOR for highest versus lowest quintile = 1.22, 95%CI = 1.14, 1.29; Ptrend < 0.001). Poultry/seafood was also associated with AS/HF in men (AOR for highest versus lowest quintile = 1.11, 95%CI = 1.04, 1.17; Ptrend = 0.002). For women, significant risk factors for AS/HF included meats (AOR for highest versus lowest quintile = 1.25, 95%CI = 1.19, 1.31; Ptrend = 0.001), poultry/seafood (AOR for highest versus lowest quintile = 1.06, 95%CI = 1.01, 1.12; Ptrend = 0.016), and fruits/vegetables (AOR for highest versus lowest quintile = 1.07, 95%CI = 1.02, 1.12; Ptrend = 0.011). In contrast, the cheese/brown bread dietary factor was protective against AS in women (AOR for highest versus lowest quintile = 0.88, 95%CI = 0.82, 0.94; Ptrend < 0.001).ConclusionsGenerally, diets marked by greater intakes of meats, poultry, and seafood were associated with diagnosed AS and AS/HF. Taken together, these findings suggest that adherence to a more meat-based diet may pose risk for AS and AS/HF in Australian adults.

【 授权许可】

CC BY   
© Rosenkranz et al.; licensee BioMed Central Ltd. 2012