Bronchial asthma and chronic obstructive pulmonary disease: research activity in Arab countries
© Sweileh et al.; licensee BioMed Central Ltd. 2014
Received: 25 May 2014
Accepted: 23 June 2014
Published: 8 July 2014
Chronic respiratory diseases, like bronchial asthma and chronic obstructive pulmonary disease (COPD), are a worldwide health problem. Quantitative and qualitative assessment of asthma and COPD-related research from Arab countries has not been explored and there are few internationally published reports on such field. The main objectives of this study were to analyze research output originating from Arab countries in the field of bronchial asthma and COPD.
Original scientific articles or reviews published from the 22 Arab countries were screened using specific words pertaining to asthma and COPD using Scopus database and search engine. Research productivity was evaluated based on: (a) total and trends of contribution of each Arab country to asthma and COPD research and (b) journals in which researchers from Arab countries published their research.
The total number of original research and review articles published globally about bronchial asthma and COPD was 163,964. The leading country in bronchial asthma and COPD research was United States of America (38,632; 23.56%). Worldwide, Turkey ranked 19th while Israel and Iran ranked 25th and 29th respectively. Among Arab countries, Egypt and Kingdom of Saudi Arabia came on positions 39th and 43rd, respectively. A total of 1,304 documents about bronchial asthma and COPD were published from Arab countries which represents 0.8% of the global research output. Research in bronchial asthma was almost double that in COPD. Research from Arab countries was low and showed a significant increase after 2000. Approximately 12% of research activity in asthma and COPD from Arab countries was published in Saudi Medical Journal, Annals of Saudi Medicine, Eastern Mediterranean Health Journal and Tunisie Medicale. Kingdom of Saudi Arabia, with a total publication of 353 (27.07%) ranked first among the Arab countries while University of Kuwait was the most productive institution with a total of 123 (9.43%) documents.
The present data showed relatively low research productivity about bronchial asthma and COPD in Arab countries. Research output can be improved by investing more in international and national collaborative research projects in the field of asthma and COPD.
KeywordsArab countries Bronchial asthma COPD Scopus
Chronic respiratory diseases are chronic diseases of the airways and other parts of the lung. Bronchial asthma and chronic obstructive pulmonary disease (COPD) are the most common types of chronic respiratory diseases . The global burden of asthma and COPD is increasing and it is estimated that more than 500 million people suffer from bronchial asthma and COPD (http://www.who.int/respiratory/en/) . The world health organization (WHO) is leading a global effort to expand understanding of chronic obstructive pulmonary disease (COPD) and advocate for better patients care. One such aspect of fighting COPD is carried out through the “Global Alliance against Chronic Respiratory Diseases” (GARD) which is a global alliance dedicated to reduce the global burden of COPD (http://www.who.int/respiratory/gard/en/). The WHO also plays a major role in coordinating international efforts against bronchial asthma to reduce the disability and premature death related to asthma particularly in low and middle income member countries. Another global alliance for asthma is GINA which was launched in 1993 in collaboration with the National Heart, Lung, and Blood Institute, National Institutes of Health, USA, and the World Health Organization (http://www.ginasthma.org/).
Research about bronchial asthma and COPD is one important aspect that each country needs to provide in the struggle against such emotionally difficult type of chronic diseases. Research in chronic respiratory diseases will shed light on the environmental and genetic risk factors as well as cultural and regional differences in the epidemiology of such diseases. An important goal of medical research is to help in initiating communication, exchange of findings and building a network of scientists sharing similar research interest. One thoughtful approach to achieve and implement such goal is through assessing and evaluating research productivity in a particular field or particular disease. It is believed that the quality, quantity and type of research publications shape up the prestige of the researcher and the research institution. Furthermore, the annual number and type of research from a particular institute or country reflects the health concern and health agenda of that country. Research about bronchial asthma and COPD can positively reflect on clinical practice in any particular region.
One method to assess research contribution from any country is bibliometric analysis which refers to the implementation of statistical methods for evaluating the research productivity, for individuals, institutes and countries . Bibliometric analysis is a useful tool to obtain information about the current state of research in particular areas [4–6]. Bibliometrics has been applied to various diseases and is now widely accepted as a method of measuring research and literacy output in any particular area [7–14]. Therefore, the objective of this study was to analyze research output from 22 Arab countries about bronchial asthma and COPD. The Arab countries cover a large geographic area including North Africa and the Arabic Peninsula with around 380 million inhabitants. Up to the authors’ knowledge, no bibliometric studies have been published from the Arab world about bronchial asthma and/or COPD. Such study will lead to a better understanding of the past, current and future status of research in chronic respiratory diseases in the Arab world which, hopefully, can lead to better preventive disease strategies and better patient-oriented health services [15–19]. The results of the study will help health policy makers and people in academia and clinical practice to shape up bronchial asthma and COPD research in the future. In addition, research activity needs to be encouraged and maintained through analysis of publications from researchers so as to provide feedback to health policy makers and education planners.
The data used in this study were based on the Scopus online database. A comprehensive online search was performed using SciVerse Scopus, which is one of the world’s largest databases of peer-reviewed literature. Scopus covers nearly 18,000 titles from 5,000 publishers worldwide, contains 41 million records and provides 100% coverage of MEDLINE . Elsevier, combining the characteristics of both the Web of Science and PubMed, developed the Scopus database. These characteristics allow for an enhanced service for educational and academic needs, as well as for medical literature research and bibliometric analysis. Scopus offers basic search and advanced search features. In the basic search, the results for the chosen keywords can be limited by the date of publication, subject area or document type [12, 21]. The search output from Scopus can be presented as a list of 20–200 items per page and extracted documents can be exported to Microsoft Excel®. The results can be refined by document type, author name, source title and publications per year and/or subject area. In addition, a new search can be initiated within the results [21, 22].
The keywords entered into the Scopus search engine to achieve the objectives of this study were entered as part of the “Article Title” or “Abstract”. All subject areas were selected for this search: health sciences, social sciences, life sciences and physical sciences, including all previous years up to the date of December 31st, 2012. The resulting search was as follows: AFFILCOUNTRY(qatar) OR AFFILCOUNTRY(jordan) OR AFFILCOUNTRY(egypt) OR AFFILCOUNTRY(emirates) OR AFFILCOUNTRY(saudi) OR AFFILCOUNTRY(palestine) OR AFFILCOUNTRY(bahrain) OR AFFILCOUNTRY(yemen) OR AFFILCOUNTRY(syrian) OR AFFILCOUNTRY(iraq) OR AFFILCOUNTRY(kuwait) OR AFFILCOUNTRY(oman) OR AFFILCOUNTRY(lebanon) OR AFFILCOUNTRY(morocco) OR AFFILCOUNTRY(tunisia) OR AFFILCOUNTRY(sudan) OR AFFILCOUNTRY(algeria) OR AFFILCOUNTRY(comoros) OR AFFILCOUNTRY(djibouti) OR AFFILCOUNTRY(libya) OR AFFILCOUNTRY(mauritania) OR AFFILCOUNTRY(somalia) AND (TITLE(asthma) OR ABS(asthma) OR TITLE(asthmatic) OR ABS(asthmatic) OR TITLE(chronic obstructive pulmonary disease) OR ABS(chronic obstructive pulmonary disease) OR TITLE(chronic obstructive lung disease) OR ABS(chronic obstructive lung disease) OR TITLE(copd) OR ABS(copd) OR TITLE(emphysema) OR ABS(emphysema) OR TITLE(chronic bronchitis) OR ABS(chronic bronchitis)).
We excluded documents that were published as an erratum. Scientific research productivity in the years 2013 and 2014 was excluded because these years were still open for new journal issues and therefore inclusion of the year 2013 would create error and bias. All searches were completed on March 28, 2014 to avoid bias due to the daily updating of the database.
Scientific output was evaluated based on a methodology developed and used in other bibliometric studies [12, 23–26]. The collected data were used to generate the following information: (a) total and trends of contributions in asthma and COPD research during all previous years up to December 31st, 2012; (b) research productivity by country; (c) journals in which Arab researchers published; (d) the productivity and impact of the most prolific institutions; and (e) the citations received by the publications.
Indices of research productivity
The measurements of bibliometric analysis (e.g. countries, cited articles, institutions) were converted to the rank order using the standard competition ranking (SCR). We took in our consideration only the ten top-ranked. If the measurements of bibliometric analysis have the same ranking number, then a gap is left in the following ranking numbers. The h-index for data collected from Scopus is presented. The h-index is a country’s number of articles (h) that have received at least h citations. It quantifies both country scientific productivity and scientific impact and it is also applicable to scientists, journals, etc. . That is to say, a country with an h-index of 10 has published 10 documents, each have attracted at least 10 citations. Documents with fewer than 10 citations are not calculated by the index. The h-index was originally developed as a way of qualifying research performance . Journal impact factor (IF) was evaluated using the Journal Citation Report (JCR; Web of Knowledge) 2012 science edition by Thomson Reuters (New York, NY, USA).
The Institutional Review Board (IRB) at An-Najah National University does not require submission of an IRB application for a bibliometric study. The IRB confirmed that there is no risk to human subjects in this type of research since the data are based on published literature and, as secondary data, did not involve any interactions with human subjects.
Data from Scopus were exported to Microsoft Excel® and then transferred to the Statistical Package for Social Sciences, Version 15 (SPSS; SPSS Inc., Chicago, IL, USA) program for analysis.
Contribution of each Arab country to the 1,304 published documents about asthma and COPD
United Arab Emirates
Syrian Arab Republic
Libyan Arab Jamahiriya
Research areas of the 1,304 documents about asthma and COPD published from the 22 Arab countries
N = 1,304
Immunology and Microbiology
Pharmacology, Toxicology and Pharmaceutics
Biochemistry, Genetics and Molecular Biology
Agricultural and Biological Sciences
Top 10 journals in which documents about asthma and COPD were published from the 21 Arab countries
N = 1,304
Saudi Medical Journal
Annals of Saudi Medicine
Journal of Asthma
Revue Francaise D Allergologie Et D Immunologie Clinique
Annals of Thoracic Medicine
Eastern Mediterranean Health Journal
Journal of Allergy and Clinical Immunology
Revue Des Maladies Respiratoires
Top 10 active institutions in hypertension research from Arab countries
N = 1,304 (100%)
University of Kuwait
King Saud University
King Faisal Specialist Hospital and Research Centre
United Arab Emirates University
Ain Shams University
Centre Hospitalier Universitaire Ibn-Rochd
Hopital de Pneumo-Phtisiologie Abderrahman-Mami
King Abdulaziz University
Chronic respiratory diseases are considered a worldwide health problem. The prevalence of chronic respiratory diseases in Arab countries is believed to be increasing in the light of urbanization and industrialization especially in certain rich Arab countries. With more funds and governmental financial support to medical research, more accurate publications about epidemiology and triggering factors are expected to appear with regard to chronic respiratory diseases in Arab countries. Recent literature indicated that non-communicable diseases, including COPD, are becoming the real future health challenge and burden for Arab countries . Several epidemiological studies indicated that bronchial asthma is common in Arab world and is mostly associated with allergic disorders [31–59]. Furthermore, bronchial asthma is affecting both children and adults and is imposing an economic burden on individuals and on health systems . In contrast to asthma, epidemiological studies about COPD in Arab countries are fewer and most information regarding COPD in Arab countries is obtained from BREATHE study which indicated that the prevalence of COPD was lower than that reported in developed countries mostly due to under-reporting or the presence of other non-smoking factors [61–66]. Screening the net showed that there is one poster published in a scientific conference (Dhubai, UAE in 2010) regarding research activity about asthma in Arab world. The authors of the poster used PubMed to screen for asthma publications and found that the number of asthma related publications originating from Arab countries over the last 10 years totaled 275 articles (https://wao.confex.com/wao/2010isc/webprogram/Paper1414.html). However, up to the author’s best knowledge, there are no published full articles about bibliometric analysis of research activity regarding respiratory system, respiratory medicine, asthma and/ or COPD in Arab countries. However, several articles were published from other parts of the world [67–72]. These international publications are important for readers in the field of respiratory medicine, public health and health system research.
Reducing chronic respiratory diseases-related morbidity and mortality in Arab countries requires periodic assessment of how these various countries progress in scientific research pertaining to epidemiology, awareness, control and risk factors associated with asthma and COPD. Furthermore, identifying research output and research activity in asthma and COPD is of great importance to public health and pharmaceutical industry. Better delivery systems might help increase compliance and therapeutic outcomes among patients with asthma/ COPD. The main goal of such a study is to direct attention of professionals, academics, researchers and pharmaceutical industry to the current status of asthma and COPD research activity. Academic institutions in the Arab world are advised to initiate more research about bronchial asthma and COPD and to strengthen research collaboration with international researchers and institutions. For future studies in this direction, it is recommended that similar quantitative and qualitative research analyses for other disciplines, particularly allergy and immunology is needed.
Our study was based on 1,304 documents extracted from Scopus, and therefore, cannot be generalized to bronchial asthma and COPD literature published from other Arab countries covered by other databases such as Google Scholar. However, the study does give a clear and a close picture about the characteristics of published asthma and COPD documents from Arab countries. Our results indicated that asthma research is almost double that of the COPD and more efforts are needed to promote research about COPD. Our results also showed that the majority of top 10 institutions in asthma and COPD research were universities with medical schools. Research productivity reveals intellectual output by the institution and is useful to university administrators when evaluating performance of university faculties in the light of university ranking among various universities .
Our study is not without limitations, most of which are the same as those of studies performed in other biomedical fields [11, 26, 74, 75]. First of all, articles published in journals not indexed in Scopus were not included in the analysis, although they might contribute to scientific productivity. Another limitation is the keywords used to screen for asthma and COPD publications. The authors did their best to include all possible and commonly used terms in this field. However, some articles might have been missed because they might have used some keywords that are different than the ones used in our research methodology. Finally, it should be noted that research output for certain institutions could have been under-estimated because of writing their English names differently in different articles. Therefore, such authors might have 2 or more institute profiles in Scopus database because their names were written differently in different articles.
The present data showed that Arab countries have relatively low research productivity in the field of asthma and COPD. Research output can be improved by investing in more international and national collaborative research projects. Pharmaceutical industry should benefit from the data presented and invest in research leading to the transfer of recent technology pertaining to asthma and COPD therapy.
Statistical Package for Social Sciences
Institute for Scientific Information
Kingdom of Saudi Arabia
United Arab Emirates
Syrian Arab Republic
United States of America
World Health Organization
Journal Citation Report
Institutional Review Board
Standard Competition Ranking
The authors would like to thank An-Najah National University for providing the opportunities to access most recent information sources, such as the Scopus database.
- Wu W, Kaminski N: Chronic lung diseases. Wiley Interdiscip Rev Syst Biol Med. 2009, 1: 298-308.View ArticlePubMedGoogle Scholar
- Halbert R, Natoli J, Gano A, Badamgarav E, Buist A, Mannino DM: Global burden of COPD: systematic review and meta-analysis. Eur Respir J. 2006, 28: 523-532.View ArticlePubMedGoogle Scholar
- Wallin JA: Bibliometric methods: pitfalls and possibilities. Basic Clin Pharmacol Toxicol. 2005, 97: 261-275.View ArticlePubMedGoogle Scholar
- De Battisti F, Salini S: Robust analysis of bibliometric data. Stat Methods Appl. 2013, 22: 269-283.View ArticleGoogle Scholar
- Smith D: Impact factors, scientometrics and the history of citation-based research. Scientometrics. 2012, 92: 419-427.View ArticleGoogle Scholar
- Smith DR: Citation analysis and impact factor trends of 5 core journals in occupational medicine, 1985–2006. Arch Environ Occup Health. 2008, 63: 114-122.View ArticlePubMedGoogle Scholar
- Bramness JG, Henriksen B, Person O, Mann K: A bibliometric analysis of European versus USA research in the field of addiction. Research on alcohol, narcotics, prescription drug abuse, tobacco and steroids 2001–2011. Eur Addict Res. 2014, 20: 16-22.View ArticlePubMedGoogle Scholar
- Hofman K, Ryce A, Prudhomme W, Kotzin S: Reporting of non-communicable disease research in low- and middle-income countries: a pilot bibliometric analysis. J Med Libr Assoc. 2006, 94: 415-420.PubMed CentralPubMedGoogle Scholar
- Huber JT, Gullion JS: Complementary and alternative medicine as represented in the HIV/AIDS body of knowledge: a bibliometric analysis. Med Ref Ser v Q. 2003, 22: 23-32.View ArticleGoogle Scholar
- Rashidi A, Rahimi B, Delirrad M: Bibliometric analysis of parasitological research in iran and Turkey: a comparative study. Iran J Parasitol. 2013, 8: 313-322.PubMed CentralPubMedGoogle Scholar
- Zyoud SH, Al-Jabi SW, Sweileh WM, Awang R: Assessing the scientific research productivity of a leading toxicology journal: a case study of human & experimental toxicology from 2003 to 2012. SAGE Open Med. 2014, 2: 2050312114523424.View ArticleGoogle Scholar
- Zyoud SH, Al-Jabi SW, Sweileh WM, Awang R: A bibliometric analysis of toxicology research productivity in Middle Eastern Arab countries during a 10-year period (2003–2012). Health Res Policy Syst. 2014, 12: 4.PubMed CentralView ArticlePubMedGoogle Scholar
- Smith DR: Identifying a set of ‘core’journals in occupational health, part 2: lists derived by bibliometric techniques. Arch Environ Occup Health. 2010, 65: 173-175.View ArticlePubMedGoogle Scholar
- Smith DR: Identifying a set of ‘core’ journals in occupational health, Part 1: lists proposed by others. Arch Environ Occup Health. 2010, 65: 106-110.View ArticlePubMedGoogle Scholar
- Allison MM: Mapping the literature of nephrology nursing. J Med Libr Assoc. 2006, 94: E74-E79.PubMed CentralPubMedGoogle Scholar
- Fedder J, Nielsen GL, Petersen LJ, Rasmussen C, Lauszus FF, Frost L, Hornung N, Lederballe O, Andersen JP: A substantial number of scientific publications originate from non-university hospitals. Dan Med Bull. 2011, 58: A4332.PubMedGoogle Scholar
- Garg AX, Iansavichus AV, Kastner M, Walters LA, Wilczynski N, McKibbon KA, Yang RC, Rehman F, Haynes RB: Lost in publication: half of all renal practice evidence is published in non-renal journals. Kidney Int. 2006, 70: 1995-2005.PubMedGoogle Scholar
- Hari Kumar KV, Aravinda K: Publication trends of a biomedical journal from India. Indian J Med Sci. 2010, 64: 253-258.View ArticlePubMedGoogle Scholar
- Thomas GR, Eng L, de Wolff JF, Grover SC: An evaluation of Wikipedia as a resource for patient education in nephrology. Semin Dial. 2013, 26: 159-163.View ArticlePubMedGoogle Scholar
- Scopus: SciVerse Scopus fact sheet. SciVerse® Scopus. 2013, [cited 2013 14, September]; Available from: http://www.elsevier.com/online-tools/scopusGoogle Scholar
- Falagas ME, Pitsouni EI, Malietzis GA, Pappas G: Comparison of PubMed, Scopus, web of science, and Google scholar: strengths and weaknesses. FASEB J. 2008, 22: 338-342.View ArticlePubMedGoogle Scholar
- Burnham JF: Scopus database: a review. Biomed Digit Libr. 2006, 3: 1.PubMed CentralView ArticlePubMedGoogle Scholar
- Zyoud S, Al-Jabi S, Sweileh W: Bibliometric analysis of scientific publications on waterpipe (narghile, shisha, hookah) tobacco smoking during the period 2003–2012. Tob Induc Dis. 2014, 12: 7.PubMed CentralView ArticlePubMedGoogle Scholar
- Zyoud SH, Al-Jabi SW, Sweileh WM: A Scopus-based examination of tobacco use publications in Middle Eastern Arab countries during the period 2003–2012. Harm Reduct J. 2014, 11: 14.PubMed CentralView ArticlePubMedGoogle Scholar
- Zyoud SH, Al-Jabi SW, Sweileh WM: Worldwide research productivity of paracetamol (acetaminophen) poisoning: a bibliometric analysis (2003–2012). Hum Exp Toxicol. 2014, Article in PressGoogle Scholar
- Zyoud SH, Al-Jabi SW, Sweileh WM, Awang R: A bibliometric analysis of research productivity of Malaysian publications in leading toxicology journals during a 10-year period (2003–2012). Hum Exp Toxicol. 2014, Article in PressGoogle Scholar
- Hirsch JE: An index to quantify an individual’s scientific research output. Proc Natl Acad Sci U S A. 2005, 102: 16569-16572.PubMed CentralView ArticlePubMedGoogle Scholar
- Meho LI, Rogers Y: Citation counting, citation ranking, and h‒index of human‒computer interaction researchers: a comparison of Scopus and Web of Science. J Am Soc Inf Sci Technol. 2008, 59: 1711-1726.View ArticleGoogle Scholar
- Mainzer F: Bilharzial asthma: bronchial asthma in Schistosoma infection. Trans R Soc Trop Med Hyg. 1938, 32: 253-264.View ArticleGoogle Scholar
- Alwan A: Responding to priority health challenges in the Arab world. Lancet. 2014, 383: 284-286.View ArticlePubMedGoogle Scholar
- Mahboub BH, Al-Hammadi S, Rafique M, Sulaiman N, Pawankar R, Al Redha AI, Mehta AC: Population prevalence of asthma and its determinants based on European Community Respiratory Health Survey in the United Arab Emirates. BMC Pulm Med. 2012, 12: 4.PubMed CentralView ArticlePubMedGoogle Scholar
- Hassan Mahboub BH, Santhakumar S, Soriano JB, Pawankar R: Asthma insights and reality in the United Arab Emirates. Ann Thorac Med. 2010, 5: 217-221.PubMed CentralView ArticlePubMedGoogle Scholar
- Mohammad Y, Tabbah K, Mohammad S, Yassine F, Clayton T, Hassan M: International study of asthma and allergies in childhood: phase 3 in the Syrian Arab Republic. East Mediterr Health J. 2010, 16: 710-716.PubMedGoogle Scholar
- Alsowaidi S, Abdulle A, Bernsen R, Zuberbier T: Allergic rhinitis and asthma: a large cross-sectional study in the United Arab Emirates. Int Arch Allergy Immunol. 2010, 153: 274-279.View ArticlePubMedGoogle Scholar
- Alsowaidi S, Abdulle A, Bernsen R: Prevalence and risk factors of asthma among adolescents and their parents in Al-Ain (United Arab Emirates). Respiration. 2010, 79: 105-111.View ArticlePubMedGoogle Scholar
- Joseph M, Zoubeidi T, Al-Dhaheri SM, Al-Dhaheri AA, Al-Kaabi FM, Al-Muhairi SJ, Joseph J: Paternal asthma is a predictor for childhood asthma in the consanguineous families from the United Arab Emirates. J Asthma. 2009, 46: 175-178.View ArticlePubMedGoogle Scholar
- Johnson M, Nriagu J, Hammad A, Savoie K, Jamil H: Asthma, environmental risk factors, and hypertension among Arab Americans in metro Detroit. J Immigr Minor Health. 2010, 12: 640-651.View ArticlePubMedGoogle Scholar
- Johnson M, Nriagu J, Hammad A, Savoie K, Jamil H: Asthma prevalence and severity in Arab American communities in the Detroit area, Michigan. J Immigr Health. 2005, 7: 165-178.View ArticlePubMedGoogle Scholar
- Swadi H: Psychiatric morbidity in a community sample of Arab children with asthma. J Trop Pediatr. 2001, 47: 106-107.View ArticlePubMedGoogle Scholar
- al-Maskari F, Bener A, al-Kaabi A, al-Suwaidi N, Norman N, Brebner J: Asthma and respiratory symptoms among school children in United Arab Emirates. Allerg Immunol (Paris). 2000, 32: 159-163.Google Scholar
- Amir J, Horev Z, Jaber L, Varsano I: Prevalence of asthma in Israeli schoolchildren. A comparative study of Jewish and Arab populations. Isr J Med Sci. 1992, 28: 789-792.PubMedGoogle Scholar
- el-Hefny AM: The allergens of asthma in children in the United Arab Republic. J Egypt Med Assoc. 1966, 49: 257-266.PubMedGoogle Scholar
- Binsaeed AA, Torchyan AA, Alsadhan AA, Almidani GM, Alsubaie AA, Aldakhail AA, Alrashed AA, Alfawaz MA, Alsaadi MM: Determinants of asthma control among children in Saudi Arabia. J Asthma. 2014, 51: 435-439.View ArticlePubMedGoogle Scholar
- Abd El-Kader MS, Al-Jiffri O, Ashmawy EM: Impact of weight loss on markers of systemic inflammation in obese Saudi children with asthma. Afr Health Sci. 2013, 13: 682-688.PubMed CentralPubMedGoogle Scholar
- Al-Moamary MS, Alhaider SA, Al-Hajjaj MS, Al-Ghobain MO, Idrees MM, Zeitouni MO, Al-Harbi AS, Al Dabbagh MM, Al-Matar H, Alorainy HS: The Saudi initiative for asthma - 2012 update: Guidelines for the diagnosis and management of asthma in adults and children. Ann Thorac Med. 2012, 7: 175-204.PubMed CentralView ArticlePubMedGoogle Scholar
- Wahabi HA, Alziedan RA: Reasons behind non-adherence of healthcare practitioners to pediatric asthma guidelines in an emergency department in Saudi Arabia. BMC Health Serv Res. 2012, 12: 226.PubMed CentralView ArticlePubMedGoogle Scholar
- Al-Binali AM, Mahfouz AA, Al-Fifi S, Naser SM, Al-Gelban KS: Asthma knowledge and behaviours among mothers of asthmatic children in Aseer, south-west Saudi Arabia. East Mediterr Health J. 2010, 16: 1153-1158.PubMedGoogle Scholar
- Sabry EY: Relation of perimenstrual asthma with disease severity and other allergic co-morbidities–the first report of perimenstrual asthma prevalence in Saudi Arabia. Allergol Immunopathol (Madr). 2011, 39: 23-26.View ArticleGoogle Scholar
- Abudahish A, Bella H: Primary care physicians perceptions and practices on asthma care in Aseer region, Saudi Arabia. Saudi Med J. 2006, 27: 333-337.PubMedGoogle Scholar
- Al-Dawood KM: Schoolboys with bronchial asthma in Al-Khobar City, Saudi Arabia: are they at increased risk of school absenteeism?. J Asthma. 2002, 39: 413-420.View ArticlePubMedGoogle Scholar
- Al-Dawood KM: School boys with bronchial asthma in Al-khobar city, Saudi Arabia: are they at increased risk of school absenteeism?. J Fam Commun Med. 2001, 8: 25-33.Google Scholar
- Al-Dawood KM: Epidemiology of bronchial asthma among school boys in Al-Khobar city, Saudi Arabia. Saudi Med J. 2001, 22: 61-66.PubMedGoogle Scholar
- Al-Mazam A, Mohamed AG: Risk factors of bronchial asthma in Bahrah, Saudi Arabia. J Fam Commun Med. 2001, 8: 33-39.Google Scholar
- Al-Dawood K: Epidemiology of bronchial asthma among schoolboys in Al-Khobar city, Saudi Arabia: cross-sectional study. Croat Med J. 2000, 41: 437-441.PubMedGoogle Scholar
- Hijazi N, Abalkhail B, Seaton A: Asthma and respiratory symptoms in urban and rural Saudi Arabia. Eur Respir J. 1998, 12: 41-44.View ArticlePubMedGoogle Scholar
- Ballal SG, Ali BA, Albar AA, Ahmed HO, al-Hasan AY: Bronchial asthma in two chemical fertilizer producing factories in eastern Saudi Arabia. Int J Tuberc Lung Dis. 1998, 2: 330-335.PubMedGoogle Scholar
- Bener A, al-Jawadi TQ, Ozkaragoz F, Anderson JA: Prevalence of asthma and wheeze in two different climatic areas of Saudi Arabia. Indian J Chest Dis Allied Sci. 1993, 35: 9-15.PubMedGoogle Scholar
- Bener A, al-Jawadi TQ, Simsek M, al-Nassar KE: Heredity of asthma in Saudi population. Eur J Epidemiol. 1992, 8: 733-736.View ArticlePubMedGoogle Scholar
- Al Frayh AR: Asthma patterns in Saudi Arabian children. J R Soc Health. 1990, 110: 98-100.View ArticlePubMedGoogle Scholar
- Mahboub BH, Safarini B, AbdulAziz M, Mustafa G: Cost of Asthma in Dubai, United Arab Emirates (UAE). J Pulmon Resp Med. 2013, 3: 2.View ArticleGoogle Scholar
- Al Ghobain M: The prevalence of chronic obstructive pulmonary disease in Saudi Arabia: Where do we stand?. Ann Thorac Med. 2011, 6: 185-186.PubMed CentralView ArticlePubMedGoogle Scholar
- Al-Kassimi FA, Alhamad EH: Re: prevalence of chronic obstructive pulmonary disease among smokers attending primary healthcare clinics in Saudi Arabia. Ann Saudi Med. 2011, 31: 433-434. author reply 434PubMed CentralView ArticlePubMedGoogle Scholar
- Al Ghobain M, Al-Hajjaj MS, Wali SO: Prevalence of chronic obstructive pulmonary disease among smokers attending primary healthcare clinics in Saudi Arabia. Ann Saudi Med. 2011, 31: 129-133.PubMed CentralView ArticlePubMedGoogle Scholar
- El Hasnaoui A, Rashid N, Lahlou A, Salhi H, Doble A, Nejjari C: Chronic obstructive pulmonary disease in the adult population within the Middle East and North Africa region: rationale and design of the BREATHE study. Respir Med. 2012, 106: S3-S15.View ArticlePubMedGoogle Scholar
- Tageldin MA, Nafti S, Khan JA, Nejjari C, Beji M, Mahboub B, Obeidat NM, Uzaslan E, Sayiner A, Wali S: Distribution of COPD-related symptoms in the Middle East and North Africa: Results of the BREATHE study. Respir Med. 2012, 106: S25-S32.View ArticlePubMedGoogle Scholar
- Døssing M, Khan J, Al-Rabiah F: Risk factors for chronic obstructive lung disease in Saudi Arabia. Respir Med. 1994, 88: 519-522.View ArticlePubMedGoogle Scholar
- Klaewsongkram J, Reantragoon R: Asthma research performance in Asia-Pacific: a bibliometric analysis by searching PubMed database. J Asthma. 2009, 46: 1013-1020.View ArticlePubMedGoogle Scholar
- Gupta B, Bala A: Mapping of asthma research in India: a scientometric analysis of publications output during 1999–2008. Lung India. 2011, 28: 239-246.PubMed CentralView ArticlePubMedGoogle Scholar
- Michalopoulos A, Falagas ME: A bibliometric analysis of global research production in respiratory medicine. CHEST. 2005, 128: 3993-3998.View ArticlePubMedGoogle Scholar
- Chen S-R, Chiu W-T, Ho Y: Asthma in children: mapping the literature by bibliometric analysis. Rev Fr Allergol Immunol Clin. 2005, 45: 442-446.Google Scholar
- Xie S, Zhang J, Ho Y-S: Assessment of world aerosol research trends by bibliometric analysis. Scientometrics. 2008, 77: 113-130.View ArticleGoogle Scholar
- Groneberg-Kloft B, Scutaru C, Dinh QT, Welte T, Chung KF, Fischer A, Quarcoo D: Inter-disease comparison of research quantity and quality: bronchial asthma and chronic obstructive pulmonary disease. J Asthma. 2009, 46: 147-152.View ArticlePubMedGoogle Scholar
- Zainal H, Zainab AN: Biomedical and health sciences publication productivity from Malaysia. Health Inform Libr J. 2011, 28: 216-225.View ArticleGoogle Scholar
- Li XQ, Tao KM, Zhou QH, Ling CQ: Scientific publications from mainland China, Taiwan, and Hong Kong in integrative and complementary medicine journals: a ten-year literature survey. Am J Chin Med. 2011, 39: 639-649.View ArticlePubMedGoogle Scholar
- Sweileh WM, Zyoud SH, Sawalha AF, Abu-Taha A, Hussein A, Al-Jabi SW: Medical and biomedical research productivity from Palestine, 2002–2011. BMC Res Notes. 2013, 6: 41.PubMed CentralView ArticlePubMedGoogle Scholar
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.