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Normal spirometry values in healthy elderly: the Rotterdam Study

Overview of attention for article published in European Journal of Epidemiology, March 2013
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Title
Normal spirometry values in healthy elderly: the Rotterdam Study
Published in
European Journal of Epidemiology, March 2013
DOI 10.1007/s10654-013-9800-4
Pubmed ID
Authors

Daan Willem Loth, Till Ittermann, Lies Lahousse, Albert Hofman, Hubert Gerardus Maria Leufkens, Guy Gaston Brusselle, Bruno Hugo Stricker

Abstract

Although many different reference values for spirometry are available from various studies, the elderly are usually underrepresented. Therefore, our objective was to assess reference values in a sample of healthy participants from a prospective population-based cohort study, including a large proportion of elderly. We included spirometry measurements of healthy, never smokers, from the Rotterdam Study and excluded participants with respiratory symptoms or prescriptions for respiratory medication. Age- and height-specific curves for the 5th (lower limit of normal) and the 50th (median) percentile of Forced Expiratory Volume in 1 s (FEV1), Forced Vital Capacity (FVC), and the ratio (FEV1/FVC) were calculated by quantile regression models. The group of healthy elderly study subjects consisted of 1,125 individuals, with a mean age of 68 years, ranging from 47 to 96 years of age. Sex stratified equations for the median and the lower limit of normal were calculated adjusted for age and height. In this study, we report age- and height-dependent reference limits for FEV1, FVC, and FEV1/FVC in a large population, and prediction equations for the lower limit of normal and median values for a sample containing a large proportion of healthy elderly.

Mendeley readers

The data shown below were compiled from readership statistics for 14 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 14 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 3 21%
Student > Postgraduate 3 21%
Student > Master 2 14%
Student > Bachelor 2 14%
Other 1 7%
Other 3 21%
Readers by discipline Count As %
Medicine and Dentistry 11 79%
Unspecified 2 14%
Environmental Science 1 7%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 April 2013.
All research outputs
#10,925,201
of 12,327,627 outputs
Outputs from European Journal of Epidemiology
#989
of 1,054 outputs
Outputs of similar age
#118,276
of 141,912 outputs
Outputs of similar age from European Journal of Epidemiology
#20
of 21 outputs
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