Pattern of impairments and late diagnosis of autism spectrum disorder among a sub-Saharan African clinical population of children in Nigeria.

Journal: Global mental health (Cambridge, England)

Volume: 4

Issue: 

Year of Publication: 

Affiliated Institutions:  Child and Adolescent Mental Health Service Centre, Federal Neuro-Psychiatric Hospital, Lagos, Nigeria. Department of Psychiatry, University College Hospital, Ibadan, Nigeria. Childhood Neuropsychiatric Disorders Initiatives, Nigeria. Department of Behavioural Medicine, Lagos State University College of Medicine, Lagos, Nigeria.

Abstract summary 

Autism spectrum disorder (ASD) is a complex group of neurodevelopmental disorders. Studies conducted among Africans living outside the continent indicate that African children are more likely than Caucasian children to have a late diagnosis of ASD. There is a dearth of information on this topic among children with ASD living in Africa.To determine the pattern of impairments and age at diagnosis in ASD, sixty Nigerian children with a diagnosis of ASD were recruited from a neurodevelopmental clinic. DSM-V criteria were used to make a diagnosis of ASD, while a symptom checklist for ASD was used to determine the pattern of impairments in ASD.Ages of the children ranged from 2 to 17 years with a mean age of 9.45 ± 4.33 years with the majority of them (75%) being 12 years or younger. All the children (100%) with ASD exhibited poor eye contact, difficulty in mixing with other children and inability to consistently respond to his/her name. More than a half of them (55%) lack verbal communication. Impairments that were uncommon are in the areas of object attachment (20.0%), odd postures (26.7%) and inappropriate facial expression (30.0%). Mean age at the observation of ASD features was 17.0 ± 6.7 months. Mean age at diagnosis of ASD was 9.00 ± 4.30 years. The mean time lag from a parental concern of ASD features to seeking specialist care was 85 months and to diagnosis was 91 months.Core symptoms/impairments of ASD are present in Nigerian children but a late diagnosis is common.

Authors & Co-authors:  Bello-Mojeed M A MA Omigbodun O O OO Bakare M O MO Adewuya A O AO

Study Outcome 

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Citations :  Aina OF, Ogun OC, Ladapo HTO, Lesi FEA, Famuyiwa OO (2008). Clinical neuro-psychiatric correlates and EEG findings among children with developmental disorders in Lagos, Nigeria. African Journal of Psychiatry 11, 123–127.
Authors :  4
Identifiers
Doi : e5
SSN : 2054-4251
Study Population
Male,Female
Mesh Terms
Other Terms
ASD;Africa;Nigeria;diagnosis;identification;impairment
Study Design
Cross Sectional Study
Study Approach
Country of Study
Niger
Publication Country
England