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Browsing by Author "Al Ghobain, Mohammed"

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  • Association of respiratory symptoms and lung function with occupation in the multinational Burden of Obstructive Lung Disease (BOLD) study
    Publication . Ratanachina, Jate; Amaral, Andre F.S.; De Matteis, Sara; Lawin, Herve; Mortimer, Kevin; Obaseki, Daniel O.; Harrabi, Imed; Denguezli, Meriam; Wouters, Emiel F.M.; Janson, Christer; Nielsen, Rune; Gulsvik, Amund; Cherkaski, Hamid Hacene; Mejza, Filip; Mahesh, Padukudru Anand; Elsony, Asma; Ahmed, Rana; Tan, Wan; Loh, Li Cher; Rashid, Abdul; Studnicka, Michael; Nafees, Asaad A.; Seemungal, Terence; Aquart-Stewart, Althea; Al Ghobain, Mohammed; Zheng, Jinping; Juvekar, Sanjay; Salvi, Sundeep; Jogi, Rain; Mannino, David; Gislason, Thorarinn; Buist, A. Sonia; Cullinan, Paul; Burney, Peter; BOLD Collaborative Research Group; Dias, Hermínia Brites
    Background: Chronic obstructive pulmonary disease has been associated with exposure in the workplace. We aimed to assess the association of respiratory symptoms and lung function with occupation in the Burden of Obstructive Lung Disease study. Methods: We analysed cross-sectional data from 28 823 adults (≥40 years) in 34 countries. We considered 11 occupations and grouped them by likelihood of exposure to organic dust, inorganic dust, and fumes. The association of chronic cough, chronic phlegm, wheeze, dyspnoea, forced vital capacity (FVC), and forced expiratory volume in 1 s (FEV1)/FVC with occupation was assessed, per study site, using multivariable regression. These estimates were then meta-analysed. Sensitivity analyses explored differences between sexes and gross national income. Results: Overall, working in settings with potentially high exposure to dust or fumes was associated with respiratory symptoms but not lung function differences. The most common occupation was farming. Compared to people not working in any of the 11 considered occupations, those who were farmers for ≥20 years were more likely to have a chronic cough (OR 1.52, 95% CI 1.19-1.94), wheeze (OR 1.37, 95% CI 1.16-1.63) and dyspnoea (OR 1.83, 95% CI 1.53-2.20), but not lower FVC (β=0.02 L, 95% CI -0.02-0.06 L) or lower FEV1/FVC (β=0.04%, 95% CI -0.49-0.58%). Some findings differed by sex and gross national income. Conclusion: At a population level, the occupational exposures considered in this study do not appear to be major determinants of differences in lung function, although they are associated with more respiratory symptoms. Because not all work settings were included in this study, respiratory surveillance should still be encouraged among high-risk dusty and fume job workers, especially in low- and middle-income countries.
    2023-01Journal article Open access Show more
  • Bronchodilator responsiveness and future chronic airflow obstruction: a multinational longitudinal study
    Publication . Knox-Brown, Ben; Algharbi, Fahad; Mulhern, Octavia; Potts, James; Harrabi, Imed; Janson, Christer; Nielsen, Rune; Agarwal, Dhiraj; Malinovschi, Andrei; Juvekar, Sanjay; Denguezli, Miriam; Gíslason, Thorarinn; Ahmed, Rana; Nafees, Asaad; Koul, Parvaiz A.; Obaseki, Daniel; Anand, Mahesh Padukudru; Loh, Li Cher; Hermínia Brites Dias; Rodrigues, Fátima; Mannino, David; Elbiaze, Mohammed; El Rhazi, Karima; Mejza, Filip; Devereux, Graham; Franssen, Frits; El Sony, Asma; Wouters, Emiel; Al Ghobain, Mohammed; Mortimer, Kevin; Rashid, Abdul; Osman, Rashid; Studnicka, Michael; Cardoso, João; Burney, Peter; Amaral, André; BOLD Collaborative Research Group
    Background: Bronchodilator responsiveness testing is mainly used for diagnosing asthma. We aimed to investigate whether it is associated with progression to chronic airflow obstruction over time. Methods: The multinational Burden of Obstructive Lung Disease cohort study surveyed adults, aged 40 years and above, at baseline and followed them up after a mean of 9.1 years. Recruitment took place between January 2, 2003, and December 26, 2016. Follow-up measurements were collected between January 29, 2019, and October 24, 2021. On both occasions, study participants provided information on respiratory symptoms, health status, and several environmental and lifestyle exposures. They also underwent pre- and post-bronchodilator spirometry. We defined bronchodilator responsiveness at baseline using the American Thoracic Society and European Respiratory Society (ATS/ERS) 2022 definition, and the presence of chronic airflow obstruction at follow-up as a post-bronchodilator forced expiratory volume in 1 s to forced vital capacity ratio (FEV1/FVC) less than the lower limit of normal. We used multi-level regression models to estimate the association between baseline bronchodilator responsiveness and incident chronic airflow obstruction. We stratified analyses by gender and performed a sensitivity analysis in never smokers. Findings: We analysed data from 3701 adults with 56% being women. Compared to those without bronchodilator responsiveness at baseline, those with bronchodilator responsiveness had a 36% increased risk of developing chronic airflow obstruction (RR: 1.36, 95%CI 1.04, 1.80). This effect was stronger in women (RR: 1.45, 95%CI 1.09, 1.91) than in men (RR: 1.07, 95%CI 0.51, 2.24). Never smokers with bronchodilator responsiveness also were at greater risk of incident chronic airflow obstruction (RR: 1.48, 95%CI 1.01, 2.20). Interpretation: Bronchodilator responsiveness appears to be a risk factor for incident chronic airflow obstruction. It is important that future studies in other large population-based cohorts replicate these findings.
    2025-03Journal article Open access Show more
  • Chronic airflow obstruction and ambient particulate air pollution
    Publication . Amaral, Andre F.; Burney, Peter G.; Patel, Jaymini; Minelli, Cosetta; Mejza, Filip; Mannino, David M.; Seemungal, Terence A.; Mahesh, Padukudru Anand; Lo, Li Cher; Janson, Christer; Juvekar, Sanjay; Denguezli, Meriam; Harrabi, Imed; Wouters, Emiel F.; Cherkaski, Hamid; Mortimer, Kevin; Jogi, Rain; Bateman, Eric D.; Fuertes, Elaine; Al Ghobain, Mohammed; Tan, Wan; Obaseki, Daniel O.; El Sony, Asma; Studnicka, Michael; Aquart-Stewart, Althea; Koul, Parvaiz; Lawin, Herve; Nafees, Asaad Ahmed; Awopeju, Olayemi; Erhabor, Gregory E.; Gislason, Thorarinn; Welte, Tobias; Gulsvik, Amund; Nielsen, Rune; Gnatiuc, Louisa; Kocabas, Ali; Marks, Guy B.; Sooronbaev, Talant; Mbatchou Ngahane, Bertrand Hugo; Barbara, Cristina; Buist, A. Sonia; BOLD Collaborative Research Group; Dias, Hermínia Brites
    Smoking is the most well-established cause of chronic airflow obstruction (CAO) but particulate air pollution and poverty have also been implicated. We regressed the sex-specific prevalence of CAO from 41 Burden of Obstructive Lung Disease study sites against smoking prevalence from the same study, the gross national income per capita, and the local annual mean level of ambient particulate matter (PM2.5) using negative binomial regression. The prevalence of CAO was not independently associated with PM2.5 but was strongly associated with smoking and was also associated with poverty. Strengthening tobacco control and improving understanding of the link between CAO and poverty should be prioritized.
    2021-12Journal article Open access Show more
  • Prevalence of chronic cough, its risk factors and population attributable risk in the Burden of Obstructive Lung Disease (BOLD) study: a multinational cross-sectional study
    Publication . Abozid, Hazim; Patel, Jaymini; Burney, Peter; Hartl, Sylvia; Breyer-Kohansal, Robab; Mortimer, Kevin; Nafees, Asaad A.; Al Ghobain, Mohammed; Welte, Tobias; Harrabi, Imed; Denguezli, Meriam; Loh, Li Cher; Rashid, Abdul; Gislason, Thorarinn; Barbara, Cristina; Cardoso, Joao; Rodrigues, Fatima; Seemungal, Terence; Obaseki, Daniel; Juvekar, Sanjay; Paraguas, Stefanni Nonna; Tan, Wan C.; Franssen, Frits M.E.; Mejza, Filip; Mannino, David; Janson, Christer; Cherkaski, Hamid Hacene; Anand, Mahesh Padukudru; Hafizi, Hasan; Buist, Sonia; Koul, Parvaiz A.; El Sony, Asma; Breyer, Marie-Kathrin; Burghuber, Otto C.; Wouters, Emiel F.M.; Amaral, Andre F.S.; Hafizi, Hasan; Aliko, Anila; Bardhi, Donika; Tafa, Holta; Thanasi, Natasha; Mezini, Arian; Teferici, Alma; Todri, Dafina; Nikolla, Jolanda; Kazasi, Rezarta; Cherkaski, Hamid Hacene; Bengrait, Amira; Haddad, Tabarek; Zgaoula, Ibtissem; Ghit, Maamar; Roubhia, Abdelhamid; Boudra, Soumaya; Atoui, Feryal; Yakoubi, Randa; Benali, Rachid; Bencheikh, Abdelghani; Ait-Khaled, Nadia; Jenkins, Christine; Marks, Guy; Bird, Tessa; Espinel, Paola; Hardaker, Kate; Toelle, Brett; Studnicka, Michael; Dawes, Torkil; Lamprecht, Bernd; Schirhofer, Lea; Islam, Akramul; Ahmed, Syed Masud; Islam, Shayla; Islam, Qazi Shafayetul; Mesbah-Ul-Haque, null; Chowdhury, Tridib Roy; Chatterjee, Sukantha Kumar; Mia, Dulal; Chandra Das, Shyamal; Rahman, Mizanur; Islam, Nazrul; Uddin, Shahaz; Islam, Nurul; Khatun, Luiza; Parvin, Monira; Khan, Abdul Awal; Islam, Maidul; Lawin, Herve; Kpangon, Arsene; Kpossou, Karl; Agodokpessi, Gildas; Ayelo, Paul; Fayomi, Benjamin; Mbatchou, Bertrand; Ashu, Atongno Humphrey; Tan, Wan C.; Wang, Wen; Zhong, NanShan; Liu, Shengming; Lu, Jiachun; Ran, Pixin; Wang, Dali; Zheng, Jin-ping; Zhou, Yumin; Jogi, Rain; Laja, Hendrik; Ulst, Katrin; Zobel, Vappu; Lill, Toomas-Julius; Adegnika, Ayola Akim; Welte, Tobias; Bodemann, Isabelle; Geldmacher, Henning; SchwedaLinow, Alexandra; Gislason, Thorarinn; Benedikdtsdottir, Bryndis; Jorundsdottir, Kristin; Lovisa Gudmundsdottir, null; Gudmundsdottir, Sigrun; Gudmundsson, Gunnar; Rao, Mahesh; Koul, Parvaiz A.; Malik, Sajjad; Hakim, Nissar A.; Khan, Umar Hafiz; Chowgule, Rohini; Shetye, Vasant; Raphael, Jonelle; Almeda, Rosel; Tawde, Mahesh; Tadvi, Rafiq; Katkar, Sunil; Kadam, Milind; Dhanawade, Rupesh; Ghurup, Umesh; Juvekar, Sanjay; Hirve, Siddhi; Sambhudas, Somnath; Chaidhary, Bharat; Tambe, Meera; Pingale, Savita; Umap, Arati; Umap, Archana; Shelar, Nitin; Devchakke, Sampada; Chaudhary, Sharda; Bondre, Suvarna; Walke, Savita; Gawhane, Ashleshsa; Sapkal, Anil; Argade, Rupali; Gaikwad, Vijay; Salvi, Sundeep; Brashier, Bill; Londhe, Jyoti; Madas, Sapna; Aquart-Stewart, Althea; Aikman, Akosua Francia; Sooronbaev, Talant M.; Estebesova, Bermet M.; Akmatalieva, Meerim; Usenbaeva, Saadat; Kydyrova, Jypara; Bostonova, Eliza; Sheraliev, Ulan; Marajapov, Nuridin; Toktogulova, Nurgul; Emilov, Berik; Azilova, Toktogul; Beishekeeva, Gulnara; Dononbaeva, Nasyikat; Tabyshova, Aijamal; Mortimer, Kevin; Nyapigoti, Wezzie; Mwangoka, Ernest; Kambwili, Mayamiko; Chipeta, Martha; Banda, Gloria; Mkandawire, Suzgo; Banda, Justice; Loh, Li-Cher; Rashid, Abdul; Sholehah, Siti; Benjelloun, Mohamed C.; Nejjari, Chakib; Elbiaze, Mohamed; El Rhazi, Karima; Wouters, E.F.M.; Wesseling, G.J.; Obaseki, Daniel; Erhabor, Gregory; Awopeju, Olayemi; Adewole, Olufemi; Gulsvik, Amund; Endresen, Tina; Svendsen, Lene; Nafees, Asaad A.; Irfan, Muhammad; Fatmi, Zafar; Zahidie, Aysha; Shaukat, Natasha; Iqbal, Meesha; Idolor, Luisito F.; Guia, Teresita S.; Francisco, Norberto A.; Roa, Camilo C.; Ayuyao, Fernando G.; Tady, Cecil Z.; Tan, Daniel T.; Banal-Yang, Sylvia; Balanag, Vincent M.; Reyes, Maria Teresita N.; Dantes, Renato B.; Dantes, Renato B.; Amarillo, Lourdes; Berratio, Lakan U.; Fernandez, Lenora C.; Francisco, Norberto A.; Garcia, Gerard S.; Idolor, Luisito F.; Naval, Sullian S.; Reyes, Thessa; Roa, Camilo C.; Sanchez, Flordeliza; Simpao, Leander P.; Nizankowska-Mogilnicka, Ewa; Frey, Jakub; Harat, Rafal; Mejza, Filip; Nastalek, Pawel; Pajak, Andrzej; Skucha, Wojciech; Szczeklik, Andrzej; Twardowska, Magda; Barbara, Cristina; Rodrigues, Fatima; Dias, Hermínia Brites; Cardoso, Joao; Almeida, João; Matos, Maria Joao; Simão, Paula; Santos, Moutinho; Ferreira, Reis; Al Ghobain, M.; Alorainy, H.; El-Hamad, E.; Al Hajjaj, M.; Hashi, A.; Dela, R.; Fanuncio, R.; Doloriel, E.; Marciano, I.; Safia, L.; Bateman, Eric; Jithoo, Anamika; Adams, Desiree; Barnes, Edward; Freeman, Jasper; Hayes, Anton; Hlengwa, Sipho; Johannisen, Christine; Koopman, Mariana; Louw, Innocentia; Ludick, Ina; Olckers, Alta; Ryck, Johanna; Storbeck, Janita; Gunasekera, Kirthi; Wickremasinghe, Rajitha; Elsony, Asma; Elsadig, Hana A.; Osman, Nada Bakery; Noory, Bandar Salah; Mohamed, Monjda Awad; Akasha Ahmed Osman, Hasab Alrasoul; Moham ed Elhassan, Namarig; El Zain, Abdel Mu’is; Mohamaden, Marwa Mohamed; Khalifa, Suhaiba; Elhadi, Mahmoud; Hassan, Mohand; Abdelmonam, Dalia; Janson, Christer; Olafsdottir, Inga Sif; Nisser, Katarina; SpetzNystrom, Ulrike; Hagg, Gunilla; Lund, GunMarie; Seemungal, Terence; Lutchmansingh, Fallon; Conyette, Liane; Harrabi, Imed; Denguezli, Myriam; Tabka, Zouhair; Daldoul, Hager; Boukheroufa, Zaki; Chouikha, Firas; Khalifa, Wahbi Belhaj; Kocabas, Ali; Hancioglu, Attila; Hanta, Ismail; Kuleci, Sedat; Turkyilmaz, Ahmet Sinan; Umut, Sema; Unalan, Turgay; Burney, Peter G.J.; Jithoo, Anamika; Gnatiuc, Louisa; Azar, Hadia; Patel, Jaymini; Amor, Caron; Potts, James; Tumilty, Michael; McLean, Fiona; Dudhaiya, Risha; Buist, A. Sonia; McBurnie, Mary Ann; Vollmer, William M.; Gillespie, Suzanne; Sullivan, Sean; Lee, Todd A.; Weiss, Kevin B.; Jensen, Robert L.; Crapo, Robert; Enright, Paul; Mannino, David M.; Cain, John; Copeland, Rebecca; Hazen, Dana; Methvin, Jennifer
    Background: Chronic cough is a common respiratory symptom with an impact on daily activities and quality of life. Global prevalence data are scarce and derive mainly from European and Asian countries and studies with outcomes other than chronic cough. In this study, we aimed to estimate the prevalence of chronic cough across a large number of study sites as well as to identify its main risk factors using a standardized protocol and definition. Methods: We analyzed cross-sectional data from 33,983 adults (≥40 years), recruited between Jan 2, 2003 and Dec 26, 2016, in 41 sites (34 countries) from the Burden of Obstructive Lung Disease (BOLD) study. We estimated the prevalence of chronic cough for each site accounting for sampling design. To identify risk factors, we conducted multivariable logistic regression analysis within each site and then pooled estimates using random-effects meta-analysis. We also calculated the population-attributable risk (PAR) associated with each of the identified risk factors. Findings: The prevalence of chronic cough varied from 3% in India (rural Pune) to 24% in the United States of America (Lexington, KY). Chronic cough was more common among females, both current and passive smokers, those working in a dusty job, those with a history of tuberculosis, those who were obese, those with a low level of education, and those with hypertension or airflow limitation. The most influential risk factors were current smoking and working in a dusty job. Interpretation: Our findings suggested that the prevalence of chronic cough varies widely across sites in different world regions. Cigarette smoking and exposure to dust in the workplace are its major risk factors.
    2024-02Journal article Open access Show more
  • Quality of life associated with breathlessness in the multinational Burden of Obstructive Lung Disease (BOLD) study: a cross-sectional analysis
    Publication . Müller, Alexander; Wouters, Emiel F.; Burney, Peter; Potts, James; Cardoso, Joao; Al Ghobain, Mohammed; Studnicka, Michael; Obaseki, Daniel; Elsony, Asma; Mortimer, Kevin; Mannino, David; Jögi, Rain; Ahmed, Rana; Nafees, Asaad; Hermínia Brites Dias
    Introduction: Evidence of an association between breathlessness and quality of life from population-based studies is limited. We aimed to investigate the association of physical and mental quality of life with breathlessness across several low-, middle- and high-income countries. Methods: We analyzed data from 19,714 adults (31 sites, 25 countries) from the Burden of Obstructive Lung Disease (BOLD) study. We measured both mental and physical quality of life components using the SF-12 questionnaire and defined breathlessness as grade ≥2 on the modified Medical Research Council scale. We used multivariable linear regression to assess the association of each quality-of-life component with breathlessness. We pooled site-specific estimates using random-effects meta-analysis. Results: Both physical and mental component scores were lower in participants with breathlessness compared to those without. This association was stronger for the physical component (coefficient = -7.59; 95%CI -8.60, -6.58; I2 = 78.5%) than for the mental component (coefficient = -3.50; 95%CI -4.36, -2.63; I2 = 71.4%). The association between physical components and breathlessness was stronger in high-income countries (coefficient = -8.82; 95%CI -10.15, -7.50). Heterogeneity across sites was partly explained by sex and tobacco smoking. Conclusion: Quality of life is worse in people with breathlessness, but this association varies widely across the world.
    2025-04Journal article Open access Show more