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dc.contributor.authorHossain, Mohammad Didar
dc.contributor.authorAhmed, Helal Uddin
dc.contributor.authorJalal Uddin, M. M.
dc.contributor.authorChowdhury, Waziul Alam
dc.contributor.authorIqbal, Mohammad Shamim
dc.contributor.authorKabir, Razin Iqbal
dc.contributor.authorChowdhury, Imran Ahmed
dc.contributor.authorAftab, Afzal
dc.contributor.authorDatta, Pran Gopal
dc.contributor.authorRabbani, Golam
dc.contributor.authorHossain, Saima Wazed
dc.contributor.authorSarker, Malabika
dc.identifier.citationHossain, M. D., Ahmed, H. U., Jalal Uddin, M. M., Chowdhury, W. A., Iqbal, M. S., Kabir, R. I., . . . Sarker, M. (2017). Autism spectrum disorders (ASD) in south asia: A systematic review. BMC Psychiatry, 17(1)10.1186/s12888-017-1440-xen_US
dc.descriptionThis article was published in the BMC Psychiatry [© 2017 The Author(s)] and the definitive version is available at : The Journal's website is at
dc.description.abstractBackground: Autism spectrum disorders (ASD) are a group of complex neurodevelopmental disorders. The prevalence of ASD in many South Asian countries is still unknown. The aim of this study was to systematically review available epidemiological studies of ASD in this region to identify gaps in our current knowledge. Methods: We searched, collected and evaluated articles published between January 1962 and July 2016 which reported the prevalence of ASD in eight South Asian countries. The search was conducted in line with the PRISMA guidelines. Results: We identified six articles from Bangladesh, India, and Sri Lanka which met our predefined inclusion criteria. The reported prevalence of ASD in South Asia ranged from 0.09% in India to 1.07% in Sri Lanka that indicates up to one in 93 children have ASD in this region. Alarmingly high prevalence (3%) was reported in Dhaka city. Study sample sizes ranged from 374 in Sri Lanka to 18,480 in India. The age range varied between 1 and 30 years. No studies were found which reported the prevalence of ASD in Pakistan, Nepal, Bhutan, Maldives and Afghanistan. This review identifies methodological differences in case definition, screening instruments and diagnostic criteria among reported three countries which make it very difficult to compare the studies. Conclusions: Our study is an attempt at understanding the scale of the problem and scarcity of information regarding ASD in the South Asia. This study will contribute to the evidence base needed to design further research and make policy decisions on addressing this issue in this region. Knowing the prevalence of ASD in South Asia is vital to ensure the effective allocation of resources and services.en_US
dc.publisher© 2017 BioMed Central Ltd.en_US
dc.subjectAutism spectrum disordersen_US
dc.subjectSouth Asiaen_US
dc.subjectSri Lankaen_US
dc.titleAutism Spectrum disorders (ASD) in South Asia: a systematic reviewen_US
dc.contributor.departmentJames P Grant School of Public Health, BRAC University

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