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Int J Ment Health Syst. 2019 Apr 29;13:29. doi: 10.1186/s13033-019-0285-8. eCollection 2019.

Prevalence of autism spectrum disorders and their relation to selected socio-demographic factors among children aged 18-30 months in northern Vietnam, 2017.

Author information

1
1Department of Health Economics and Finance, Hanoi University of Public Health, Hanoi, Vietnam.
2
2Department of Demography-Reproductive Health, Hanoi University of Public Health, Hanoi, Vietnam.
3
3Department of Biostatistics, Hanoi University of Public Health, Hanoi, Vietnam.
4
4Department of Psychiatry, Vietnam National Hospital of Pediatrics, Hanoi, Vietnam.
5
5Departments of Personnel and Organization, Vietnam Ministry of Health, Hanoi, Vietnam.
6
Global and Cultural Mental Health Unit, Center for Mental Health, Melbourne School of Population and Global Health, Melbourne, Australia.

Abstract

Background:

Autism spectrum disorders are increasing worldwide and in Vietnam. This study reports the prevalence of autism spectrum disorders and examines their relation to selected socio-demographic factors among children aged 18 and 30 months in three northern cities/provinces in Vietnam, 2017.

Methods:

This was a cross-sectional study conducted among 17,277 children aged 18 and 30 months one city (Hanoi capital) and two provinces in northern Vietnam. The multi-stage sampling technique was applied in this study. We used M-CHAT to screen children with high risk of ASD. M-CHAT positive cases were diagnosed by pediatric neurologists from National Pediatrics Hospital using DSM-IV criteria. Descriptive and analytical statistics were performed.

Results:

The overall prevalence of ASD among children aged 18 and 30 months in the three studied sites was 0.752% (95% CI 0.629-0.893%). The odds of having ASD were statistically significant higher among (a) children living in urban area as compared to those from rural settings (OR = 2.7, 95% CI 1.73-4.21); (b) boys as compared to girls (OR = 4.04, 95% CI 2.57-6.35); and (c) children of mothers who worked as farmers as compared to children of mothers who were government staff (OR = 4.72, 95% CI 2.03-10.97).

Conclusions:

Our study revealed that the prevalence of ASD among children in Vietnam seems to be increasing. The significant correlates of ASD among the children were urban setting, male gender and mother's occupation (farmer). Further and more in-depth studies on determinants of ASD are needed to provide insights into the problem.

KEYWORDS:

Autism; Prevalence; Socio-demographic; Vietnam

Conflict of interest statement

The authors declare that they have no competing interests.

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