瑞典一项针对老年人的队列研究中死亡率、哮喘与健康相关生活质量的关系
2010/09/14
背景:哮喘在老年人中是一种危害健康的慢性疾病,具有一定的发病率和病死率。一些研究显示,健康相关生活质量(HRQL)的主观评价是死亡率和生存率一个重要的预测因子。本试验主要研究低HRQL是否为老年人死亡率的一个预测因子,该相关性在哮喘与非哮喘老年人群中是否存在差异。
方法:在1990年,采用呼吸问卷,对瑞典中部的老年人进行队列研究。采用哥德堡生活质量(GQL)对HRQL进行评价。同时,对参与者进行肺活量检测和过敏测试。患者年龄为60~69岁(1990年),其中222名患者有临床确诊的哮喘,148名参与者有呼吸道症状,但无哮喘或其他肺部疾病诊断,102名参与者无呼吸道症状。在1990年至2008年的随访期内,统计死亡率。
结果:随访期内有116(166/472)名参与者死亡。男性、年长者、吸烟者以及第一秒用力呼气容积(FEV1)较低患者其死亡率显著增加。但哮喘患者与非哮喘参与者之间其死亡率未见显著差异。GQL中其症状评分较高与死亡率增加相关。虽然哮喘患者与其他参与者相比具有较低的GQL症状评分,若仅针对哮喘患者进行分析,HRQL和死亡率之间无显著相关性。
结论:GQL中较高的症状评分与死亡率增加显著相关,但单纯就哮喘患者而言,不存在此相关性。较低的HRQL是死亡率的一个负向预测因子,哮喘患者较其他人群具有较低的HRQL,这些发现支持在临床中采用HRQL工具进行健康评估。
(刘国梁 审校)
J Asthma. 2010 Jul 14. [Epub ahead of print]
Associations Between Mortality, Asthma, and Health-Related Quality of Life in an Elderly Cohort of Swedes
Leander M, Janson C, Uddenfeldt M, Cronqvist A, Rask-Andersen A.
Department of Medical Sciences, Occupational and Environmental Medicine, UppsalaUniversity, Uppsala, Sweden.
Abstract
Background. Asthma is a common chronic health condition among the elderly and an important cause of morbidity and mortality. Some studies show that subjective assessments of health-related quality of life (HRQL) are important predictors of mortality and survival. The primary aim of this study was to investigate whether low HRQL was a predictor of mortality in elderly subjects and whether such an association differed between subjects with and without asthma.
Methods. In 1990, a cohort in middle Sweden was investigated using a respiratory questionnaire. To assess HRQL, the generic instrument Gothenburg Quality of Life (GQL) was used. The participants were also investigated by spirometry and allergy testing. The present study was limited to the subjects in the oldest age group, aged 60-69 years in 1990, and included 222 subjects with clinically verified asthma, 148 subjects with respiratory symptoms but no asthma or other lung diseases, and 102 subjects with no respiratory symptoms. Mortality in the cohort was followed during 1990-2008.
Results. Altogether, 166 of the 472 subjects in the original cohort had died during the follow-up period of 1990-2008. Mortality was significantly higher in men, in older subjects, in smokers, and subjects with a low forced expiratory volume in one second (FEV(1)). There was, however, no difference in mortality between the asthmatic and the nonasthmatic groups. A higher symptoms score for GQL was significantly related to increased mortality. No association between HRQL and mortality was found when limiting the analysis to the asthmatic group, although the asthmatics had a lower symptom score for GQL compared to the other groups.
Conclusion. A higher symptom score in the GQL instrument was significantly related to increased mortality, but this association was not found when analyzing the asthmatic group alone. The negative prognostic implications of a low HRQL in the whole group and the fact that the asthmatic group had a lower HRQL than the other group supports the use of HRQL instruments in clinical health assessments.
J Asthma. 2010 Jul 14. [Epub ahead of print]
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圣文森特与格林纳丁斯的哮喘人群特征:哮喘严重程度与过敏
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2002年~2007年间参与商业保险的人群中未得到控制的哮喘:趋势、预测因素和费用