Page 55 - Livre électronique du congrès des RFTP 2022

P19
WHICH RELATIONSHIP BETWEEN LUNG AGE AND TOBACCO
CONSUMPTION?

B. BARKOUS, S. KHALDI, K. DERBEL, F. GUEZGUEZ, A. SAYAHI, S. ROUATBI
DEPARTMENT OF PHYSIOLOGY AND FUNCTIONAL EXPLORATIONS, UNIVERSITY HOSPITAL OF
FARHAT HACHED, SOUSSE, TUNISIA RESEARCH LABORATORY, LR12SP09

INTRODUCTION: Tobacco smokers are more likely to develop pulmonary diseases
than never smokers. The concept of ""lung age"" is thought to be useful to evaluate
the aging lung in case of tobacco use and to detect pulmonary function abnormalities
in pulmonary diseases.

OBJECTIVE : To investigate the relationship between lung age and tobacco
consumption.
METHODS : It is a cross sectional study performed in the Functional Exploration
department of Farhat Hached Hospital, including 154 Smokers. This study included
only males. Tobacco consumption was estimated in pack years and estimated
pulmonary age was calculated using a specific formula for North African patients.

Correlation between lung age and smoking (pack year) was conducted with
Spearman test.
RESULTS : The mean age was 61.18± 12.32years, the mean BMI was 25± 5.44 Kg/m2.
In this sample : 77.9% of smokers had COPD. The median FEV1 was 1.45 [0.93 ; 2.46] in
liter and 44% [27.75 ; 72] in percentage. The median tobacco consumption (in pack
year) was 45 [30 ; 65]. The median lung age was 80.14 [59.75 ; 92.60]. A statistically
significant and positive correlation was found between lung age and tobacco
consumption (p< 0.01, r= 0.450).
CONCLUSION: This finding indicated that there is an association between lung age
and tobacco consumption. Thus, lung age could be used to motivate lifestyle change
of smokers in smoking cessation counseling.

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