scholarly journals Betel Nut Chewing Was Associated with Obstructive Lung Disease in a Large Taiwanese Population Study

2021 ◽  
Vol 11 (10) ◽  
pp. 973
Author(s):  
Chao-Hsin Huang ◽  
Jiun-Hung Geng ◽  
Da-Wei Wu ◽  
Szu-Chia Chen ◽  
Chih-Hsing Hung ◽  
...  
Keyword(s):  
Lung Function ◽  
Lung Disease ◽  
Cumulative Dose ◽  
Obstructive Lung Disease ◽  
Normal Lung ◽  
Betel Nut ◽  
Daily Amount ◽  
Long Duration ◽  
High Cumulative Dose ◽  
Betel Nut Chewing

The prevalence of betel nut chewing in Taiwan is high at approximately 7%, however, few studies have evaluated the relationship between betel nut chewing and lung disease. Therefore, the aim of this study was to investigate associations between betel nut chewing and lung function in 80,877 participants in the Taiwan Biobank (TWB). We further investigated correlations between betel nut chewing characteristics such as years of use, frequency, daily amount, and accumulative dose, with obstructive lung disease. We used data from the TWB. Lung function was assessed using spirometry measurements of forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1). The participants were classified into normal lung function and obstructive lung function (FEV1/FVC < 70%) groups. The participants were asked questions about betel nut chewing, including years of use, frequency, and daily amount. After multivariable analysis, betel nut chewing (odds ratio [OR] = 1.159; p < 0.001) was significantly associated with FEV1/FVC < 70% in all participants (n = 80,877). Further, in the participants who chewed betel nut (n = 5135), a long duration of betel nut chewing (per 1 year; OR = 1.008; p = 0.012), betel nut use every day (vs. 1–3 days/month; OR = 1.793; p = 0.036), 10–20 quids a day (vs. <10 quids; OR = 1.404; p = 0.019), 21–30 quids a day (vs. <10 quids; OR = 1.662; p = 0.010), ≥31 quids a day (vs. <10 quids; OR = 1.717; p = 0.003), and high cumulative dose (per 1 year × frequency × daily score; OR = 1.001; p = 0.002) were significantly associated with FEV1/FVC < 70%. In this large population-based cohort study, chewing betel nut was associated with obstructive lung disease. Furthermore, a long duration of betel nut chewing, more frequent use, higher daily amount, and high cumulative dose were associated with obstructive lung disease. This suggests that preventing betel nut chewing should be considered to reduce obstructive lung disease in Taiwan.

scholarly journals Prevalence and burden of chronic bronchitis symptoms: results from the BOLD study

2017 ◽  
Vol 50 (5) ◽  
pp. 1700621 ◽  
Author(s):  
Filip Mejza ◽  
Louisa Gnatiuc ◽  
A. Sonia Buist ◽  
William M. Vollmer ◽  
Bernd Lamprecht ◽  
...  
Keyword(s):  
Lung Function ◽  
Lung Disease ◽  
Chronic Bronchitis ◽  
Airflow Obstruction ◽  
Population Based ◽  
Normal Lung ◽  
Increased Risk ◽  
Potential Risk Factors ◽  
Definition Of ◽  
Disease Study

We studied the prevalence, burden and potential risk factors for chronic bronchitis symptoms in the Burden of Obstructive Lung Disease study.Representative population-based samples of adults aged ≥40 years were selected in participating sites. Participants completed questionnaires and spirometry. Chronic bronchitis symptoms were defined as chronic cough and phlegm on most days for ≥3 months each year for ≥2 years.Data from 24 855 subjects from 33 sites in 29 countries were analysed. There were significant differences in the prevalence of self-reported symptoms meeting our definition of chronic bronchitis across sites, from 10.8% in Lexington (KY, USA), to 0% in Ile-Ife (Nigeria) and Blantyre (Malawi). Older age, less education, current smoking, occupational exposure to fumes, self-reported diagnosis of asthma or lung cancer and family history of chronic lung disease were all associated with increased risk of chronic bronchitis. Chronic bronchitis symptoms were associated with worse lung function, more dyspnoea, increased risk of respiratory exacerbations and reduced quality of life, independent of the presence of other lung diseases.The prevalence of chronic bronchitis symptoms varied widely across the studied sites. Chronic bronchitis symptoms were associated with significant burden both in individuals with chronic airflow obstruction and those with normal lung function.

scholarly journals Rate of normal lung function decline in ageing adults: a systematic review of prospective cohort studies

BMJ Open ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. e028150 ◽  
Author(s):  
Elizabeth T Thomas ◽  
Michelle Guppy ◽  
Sharon E Straus ◽  
Katy J L Bell ◽  
Paul Glasziou
Keyword(s):  
Systematic Review ◽  
Lung Function ◽  
Cohort Studies ◽  
Lung Disease ◽  
Prospective Cohort ◽  
Normal Lung ◽  
Prospective Cohort Studies ◽  
Age Related ◽  
Disease Definition ◽  
Definition Of

ObjectiveTo conduct a systematic review investigating the normal age-related changes in lung function in adults without known lung disease.DesignSystematic review.Data sourcesMEDLINE, Embase and Cumulative Index to Nursing and Allied Health Literature (CINAHL) were searched for eligible studies from inception to February 12, 2019, supplemented by manual searches of reference lists and clinical trial registries.Eligibility criteriaWe planned to include prospective cohort studies and randomised controlled trials (control arms) that measured changes in lung function over time in asymptomatic adults without known respiratory disease.Data extraction and synthesisTwo authors independently determined the eligibility of studies, extracted data and assessed the risk of bias of included studies using the modified Newcastle–Ottawa Scale.ResultsFrom 4385 records screened, we identified 16 cohort studies with 31 099 participants. All included studies demonstrated decline in lung function—forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and peak expiratory flow rate (PEFR) with age. In studies with longer follow-up (>10 years), rates of FEV1decline ranged from 17.7 to 46.4 mL/year (median 22.4 mL/year). Overall, men had faster absolute rates of decline (median 43.5 mL/year) compared with women (median 30.5 mL/year). Differences in relative FEV1change, however, were not observed between men and women. FEV1/FVC change was reported in only one study, declining by 0.29% per year. An age-specific analysis suggested the rate of FEV1function decline may accelerate with each decade of age.ConclusionsLung function—FEV1, FVC and PEFR—decline with age in individuals without known lung disease. The definition of chronic airway disease may need to be reconsidered to allow for normal ageing and ensure that people likely to benefit from interventions are identified rather than healthy people who may be harmed by potential overdiagnosis and overtreatment. The first step would be to apply age, sex and ethnicity-adjusted FEV1/FVC thresholds to the disease definition of chronic obstructive pulmonary disease.PROSPERO registration numberCRD42018087066.

scholarly journals Relationship of CT densitometry to lung physiological parameters and health status in alpha-1 antitrypsin deficiency: initial report of a centralised database of the NIHR rare diseases translational research collaborative

BMJ Open ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. e036045
Author(s):  
Diana Crossley ◽  
James Stockley ◽  
Charlotte E Bolton ◽  
Nicholas S Hopkinson ◽  
Ravi Mahadeva ◽  
...  
Keyword(s):  
Health Status ◽  
Lung Function ◽  
Lung Disease ◽  
Clinical Features ◽  
Obstructive Lung Disease ◽  
Chronic Obstructive Lung Disease ◽  
Chronic Obstructive ◽  
Antitrypsin Deficiency ◽  
Alpha 1 Antitrypsin Deficiency ◽  
Alpha 1 Antitrypsin

ObjectivesTo establish a database network for the study of alpha-1 antitrypsin deficiency (AATD) and compare the results to CT lung density as the most direct measure of emphysema.DesignA central electronic database was established to permit the upload of anonymised patient data from remote sites. Prospectively collected CT data were recorded onto disc, anonymised, analysed at the coordinating centre and compared with the clinical features of the disease.SettingTertiary referral centres with expertise in the management of AATD focused on academic Biomedical Research Units and Wellcome Clinical Research Facilities.ParticipantsData were collected from 187 patients over 1 year from eight UK academic sites. This included patient demographics, postbronchodilator physiology, health status and CT. Analysis was undertaken at the coordinating centre in Birmingham.ResultsPatient recruitment in the 12 months reached 94% of target (set at 200) covering the whole spectrum of the disease from those with normal lung function to very severe chronic obstructive lung disease. CT scan suitable for analysis was available from 147 (79%) of the patients. CT density, analysed as the threshold for the lowest 15% of lung voxels, showed statistically significant relationships with the objective physiological parameters of lung function as determined by spirometric Global Initiative for Chronic Obstructive Lung Disease (GOLD) severity staging (p<0.001) and carbon monoxide gas transfer (p<0.01). Density also correlated with subjective measures of quality of life (p=0.02).ConclusionsEstablishment of the network for data collection and its transfer was highly successful facilitating future collaboration for the study of this rare disease and its management. CT densitometry correlated well with the objective clinical features of the disease supporting its role as the specific marker of the associated emphysema and its severity. Correlations with subjective measures of health, however, were generally weak indicating other factors play a role.

scholarly journals Two novel mutations in surfactant protein-C, lung function and obstructive lung disease

2010 ◽  
Vol 104 (3) ◽  
pp. 418-425 ◽  
Author(s):  
Marie Bækvad-Hansen ◽  
Børge G. Nordestgaard ◽  
Anne Tybjærg-Hansen ◽  
Morten Dahl
Keyword(s):  
Lung Function ◽  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Protein C ◽  
Surfactant Protein ◽  
Novel Mutations ◽  
Surfactant Protein C

scholarly journals A Meta-analysis of Arsenic Exposure and Lung Function: Is There Evidence of Restrictive or Obstructive Lung Disease?

2018 ◽  
Vol 5 (2) ◽  
pp. 244-254 ◽  
Author(s):  
Tiffany R. Sanchez ◽  
Martha Powers ◽  
Matthew Perzanowski ◽  
Christine M. George ◽  
Joseph H. Graziano ◽  
...  
Keyword(s):  
Lung Function ◽  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Meta Analysis ◽  
Arsenic Exposure
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