Alpha-1 antitrypsin deficiency and risk of lung cancer in never-smokers: a multicentre case-control study.
BMC Cancer
; 22(1): 81, 2022 Jan 19.
Article
de En
| MEDLINE
| ID: mdl-35045822
ABSTRACT
BACKGROUND:
Lung cancer (LC) is the most commonly diagnosed cancer and the leading cause of cancer-related death in both sexes worldwide. Although the principal risk factor in the western world is tobacco smoking, genetic factors, including alpha-1 antitrypsin deficiency (AATD), have been associated with increased risk. This study is the continuation of an earlier one published by the same group in 2015, aimed at analysing risk of LC in never-smokers, associated with carriers of the AATD genotype.METHODS:
A multicentre case-control study was conducted in Spain across the period January 2011 to August 2019. Cases were non-smokers diagnosed with LC, and controls were composed of never-smoking individuals undergoing major non-cancer-related surgery. Data were collected on epidemiological characteristics, exposure to environmental tobacco smoke (ETS), residential radon levels, and alpha-1 antitrypsin (AAT) genotype.RESULTS:
The study included 457 cases (42%) and 631 controls (58%), with a predominance of women (72,8%). The most frequent histological type was adenocarcinoma (77.5%), followed by squamous cell carcinoma (7.7%). No association of risk of LC was found with the status of AATD genotype carrier, both overall and broken down by age, sex, or exposure to ETS.CONCLUSIONS:
No risk association was found between being a carrier of an AAT deficiency genotype and LC among never-smokers. In order to establish the existence of an association, we consider it important to expand the studies in never smokers in different geographical areas as well as to include patients with previous chronic lung diseases to assess if it influences the risk.Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Carcinome épidermoïde
/
Adénocarcinome
/
Déficit en alpha-1-antitrypsine
/
Prédisposition génétique à une maladie
/
Tumeurs du poumon
Type d'étude:
Clinical_trials
/
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limites:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Pays/Région comme sujet:
Europa
Langue:
En
Journal:
BMC Cancer
Sujet du journal:
NEOPLASIAS
Année:
2022
Type de document:
Article
Pays d'affiliation:
Espagne