Phenotypes of symptomatic airways disease in China and New Zealand

被引:10
作者
Fingleton, James [1 ,2 ,3 ]
Huang, Kewu [4 ]
Weatherall, Mark [2 ,5 ]
Guo, Yanfei [6 ]
Ivanov, Stefan [7 ]
Bruijnzeel, Piet [7 ]
Zhang, Hong [4 ]
Wang, Wei [4 ]
Beasley, Richard [1 ,2 ,3 ]
Wang, Chen [6 ,8 ,9 ]
机构
[1] Med Res Inst New Zealand, Private Bag 7902, Wellington 6242, New Zealand
[2] Capital & Coast Dist Hlth Board, Wellington, New Zealand
[3] Victoria Univ Wellington, Wellington, New Zealand
[4] Capital Med Univ, Beijing Chao Yang Hosp, Dept Pulm & Crit Care Med, Beijing, PR, Peoples R China
[5] Univ Otago Wellington, Wellington, New Zealand
[6] Beijing Hosp, Dept Pulm & Crit Care Med, Minist Hlth, Beijing, Peoples R China
[7] AstraZeneca, Molndal, Sweden
[8] China Japan Friendship Hosp, Dept Pulm & Crit Care Med, Beijing, Peoples R China
[9] Capital Med Univ, Beijing, Peoples R China
关键词
OBSTRUCTIVE PULMONARY-DISEASE; RANDOMIZED CONTROLLED-TRIALS; CLUSTER-ANALYSIS; EXTERNAL VALIDITY; ASTHMA PHENOTYPES; LUNG-DISEASE; IDENTIFICATION; OBESITY;
D O I
10.1183/13993003.00957-2017
中图分类号
R56 [呼吸系及胸部疾病];
学科分类号
摘要
It is uncertain whether phenotypes of asthma and chronic obstructive pulmonary disease (COPD) vary between populations with different genetic and environmental characteristics. Here, our objective was to compare the phenotypes of airways disease in two separate populations. This was a cross-sectional observational study in adult populations from New Zealand and China. Participants aged 40-75 years who reported wheeze and breathlessness in the last 12 months were randomly selected from the general population and underwent detailed characterisation. Complete data for cluster analysis were available for 345 participants. Hierarchical cluster analysis was undertaken, based on 12 variables: forced expiratory volume in 1 s (FEV1), FEV1/forced vital capacity ratio, bronchodilator reversibility, peak expiratory flow variability, transfer coefficient of the lung for carbon monoxide, exhaled nitric oxide fraction, total IgE, C-reactive protein, age of symptom onset, body mass index, health status and cigarette smoke exposure. Cluster analysis of the combined dataset described five phenotypes: "severe late-onset asthma/COPD overlap group", "moderately severe early-onset asthma/COPD overlap group", "moderate to severe asthma group with type 2 predominant disease", and two groups with minimal airflow obstruction, differentiated by age of onset. Separate analyses by country showed similar patterns; however, a distinct obese/comorbid group was observed in the New Zealand population. Cluster analysis of adults with symptomatic airways disease suggests the presence of similar asthma/COPD overlap phenotypes within populations with different genetic and environmental characteristics, and an obese/comorbid phenotype in a Western population.
引用
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页数:10
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