“Spirometric” lung age reference equations: A narrative review

Khelifa, M. Ben; Salem, H. Ben; Sfaxi, R.; Chatti, S.; Rouatbi, Sonia; Saad, Helmi Ben

doi:10.1016/j.resp.2017.08.018

Cited by 6 publications

(13 citation statements)

References 49 publications

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“…8,9 This intervention consists in announcing accelerated lung deterioration through the estimation of a spirometric lung-age (SLA). 9 The concept of SLA reports spirometric data using the age of an average healthy individual with similar spirometry results ( ie ; “you are 40 years old, nevertheless you have the lungs of a 60-year- old person’). 9,10 An elevated SLA signifies poor lung function as if the lungs have aged beyond the individual's chronological-age.…”

Section: Indroductionmentioning

confidence: 99%

“…9 The concept of SLA reports spirometric data using the age of an average healthy individual with similar spirometry results ( ie ; “you are 40 years old, nevertheless you have the lungs of a 60-year- old person’). 9,10 An elevated SLA signifies poor lung function as if the lungs have aged beyond the individual's chronological-age. 11 SLA can provide an easy interpretation of spirometric results and can therefore detect lung function abnormalities.…”

Section: Indroductionmentioning

confidence: 99%

“…22 The use of these old norms to calculate SLA 22 is widely questionable for at least six reasons. 9,23,24 First, the Morris and Temple norms 22 were performed on an unrepresentative sample of a “normal” population with 79% of participants recruited from two churches in rural America. The principles of these churches prohibit the use of tobacco, alcohol and caffeine and promote a vegetarian diet.…”

Section: Indroductionmentioning

confidence: 99%

“…22 Third, the participants’ height was measured in “inches’, and the conversion from inch to centimeter, as done in some studies, 10,14–16,19 can generate errors. 9,23 Fourth, the spirometric data were collected with a very old equipment and by applying guidelines that differ from those currently recommended by learned societies. 25 Fifth, the statistical method applied to establish the SLA norms is criticized.…”

Section: Indroductionmentioning

confidence: 99%

“…7 Communicating the chronic risk of smoking on lungs by calculating a theoretical “effective age” could be another non-medical motivational strategy to help smokers quit smoking. 8,9 This intervention consists in announcing accelerated lung deterioration through the estimation of a spirometric lung-age (SLA). 9 The concept of SLA reports spirometric data using the age of an average healthy individual with similar spirometry results ( ie ; “you are 40 years old, nevertheless you have the lungs of a 60-year- old person’).…”

Section: Indroductionmentioning

confidence: 99%

See 4 more Smart Citations

Self-Reported Smoking Status 10-Months After a Single Session Intervention Including an Education Conference About Smoking Harms and Announcement of Spirometric Lung-Age

Derbel

Maatoug

Mchita

et al. 2021

Clin Med Insights Circ Respir Pulm Med

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Background Studies investigating the effects of announcing spirometric lung-age (SLA) on the smokers’ self-reported smoking status reported conflicting results. Main objective To evaluate the effects of a single session intervention including an education conference about smoking harms and announcement of SLA on the participants’ self-reported smoking status. Methodology An interventional study was conducted in a cable factory. The intervention included four steps: PowerPoint presentation about raising smoking hazards awareness; general questionnaire; measurement of the anthropometric and spirometric data, and announcement of SLA; and evaluation of the smokers’ self-reported smoking status 10 months later (quitted smoking, decreased consumption; stable consumption, increased consumption). Results Thirty-six smokers completed the four steps. Ten months after the intervention, 11.1% of smokers quitted smoking, 52.7% decreased their consumption by 7 ± 4 cigarettes/day, 30.5% kept a stable consumption, and 5.5% increased their consumption by 9 ± 6 cigarettes/day. Conclusion Providing an education conference combined with announcing SLA motivated 64% of smokers to quit smoking or to reduce their cigarette consumption.

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Section: Indroductionmentioning

confidence: 99%

Section: Indroductionmentioning

confidence: 99%

Section: Indroductionmentioning

confidence: 99%

Section: Indroductionmentioning

confidence: 99%

Section: Indroductionmentioning

confidence: 99%

See 3 more Smart Citations

Self-Reported Smoking Status 10-Months After a Single Session Intervention Including an Education Conference About Smoking Harms and Announcement of Spirometric Lung-Age

Derbel

Maatoug

Mchita

et al. 2021

Clin Med Insights Circ Respir Pulm Med

Self Cite

View full text Add to dashboard Cite

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Quelle équation de référence faut-il appliquer pour estimer l’âge pulmonaire ?

Khelifa

Saad

2018

Revue des Maladies Respiratoires

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Estimation of lung age via a spline method and its application in chronic respiratory diseases

Liang

Xie

Gao

et al. 2022

npj Prim. Care Respir. Med.

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Lung age is a simplified concept that makes spirometry data easier to understand, but it is not widely used due to limitations in estimation methods. The aim of this study was to develop new equations to estimate lung age and to explore the application value of lung age in chronic respiratory diseases. Retrospective spirometric data of 18- to 80-year-old healthy subjects were used to develop the lung age estimation equations. Models were respectively built by multiple linear regression, piecewise linear regression, and the natural cubic spline method. Patients with chronic obstructive pulmonary disease (COPD) and asthma were subdivided into stages I–IV according to the severity of airflow limitation under the recommendation of the Global Initiative for Chronic Obstructive Lung Disease. Propensity score matching was performed to balance age, height and sex between healthy subjects and patients. The difference between lung age and chronological age (∆ lung age) of patients with COPD and asthma was analyzed. A total of 3409 healthy subjects, 280 patients with COPD and 285 patients with asthma data were included in the analysis. The lung age estimation equation with the best goodness of fit was built by the spline method and composed of FEV1, FEF50%, FEF75% and height as explanatory variables. ∆ lung age progressively increased with the degree of airflow limitation in patients with COPD or asthma. Lung age estimation equations were developed by a spline modeling method. Lung age may be used in the assessment of chronic respiratory patients.

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“Spirometric” lung age reference equations: A narrative review

Cited by 6 publications

References 49 publications

Self-Reported Smoking Status 10-Months After a Single Session Intervention Including an Education Conference About Smoking Harms and Announcement of Spirometric Lung-Age

Self-Reported Smoking Status 10-Months After a Single Session Intervention Including an Education Conference About Smoking Harms and Announcement of Spirometric Lung-Age

Quelle équation de référence faut-il appliquer pour estimer l’âge pulmonaire ?

Estimation of lung age via a spline method and its application in chronic respiratory diseases

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