Investigation of childhood autism status in Lianyungang city
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Objective:To learn about the prevalence of autism in children aged less than 3 years in Lianyungang city and to offer the basic data for further intervention treatment.Methods:The cross sectional study was carried out on 8 532 children aged less than 3 years by cluster random sampling.The results were screened by Checklist for Autism in Toddlers and Clancy Autism Behavior Scale.The autism cases were diagnosed and rated according to the diagnosing criteria of DSM-IV or by childhood autism rating scale.The 0-6 years old children neuropsychological development diagnostic scale was adopted to evaluate the intelligence(DQ70 as low).Results:Nine of 8532 children were diagnosed with autism,the morbidity was 1.17‰ and the male-female ratio was 3.4:1.The peak age of illness was similar to that in the natural outpatients to the 3-year psychological behavior clinic.Conclusion:The incidence rate of autism in children aged less than 3 years in Lianyungang city is in the low range of the incidence rates reported at home and abroad.Parents and healthcare doctors should improve their recognition of childhood autism further.Cite
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Abstract Background Research on the prevalence of autism in Iceland has indicated that one possible explanation of fewer autism cases in older age groups was due to an underestimation of autism in individuals with intellectual disabilities (IDs). The present study systematically searched for autism cases in the adult population of individuals with severe ID living in the city of Reykjavik, Iceland. Methods Potential participants ( n = 256) were recruited through the Regional Office for the Affairs of the Handicapped in Reykjavik. First, a screening tool for autism was applied, followed by the Childhood Autism Rating Scale and finally the Autism Diagnostic Interview‐Revised (ADI‐R). Results The point prevalence of severe ID was 3.7/1000 (95% CI 3.2–4.1) with a male–female ratio of 1.2:1. Participation rate in the study was 46.5%. Participants were younger than non‐participants and more often residents of group homes. The prevalence of autism was 21% (25/119) (95% CI 14.7–29.2) with a male–female ratio of 1.8:1. Of the individuals with autism, 10/25 (40%) were verbal according to the ADI‐R definition, and 18/25 (72%) had active epilepsy and/or other neurological conditions and handicaps. Conclusion The study identified twice the number of autism cases than those previously recognised within the service system. Autism is a prevalent additional handicap in individuals with severe ID, which should always be considered in this population. There are indications that the estimated prevalence of autism found should be considered minimal.
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The Checklist for Autism in Young Children, comprising 30 symptoms related to autism, was administered to 143 children with autism. The children had an average of 23 (77%) of the checklist symptoms (range 50%—97%). Percentages of children exhibiting each checklist symptom and other data were compared with diagnostic criteria and associated features reported in the DSM-IV. Two DSM-IV diagnostic criteria were not supported by study findings, and four checklist symptoms occurred at high frequencies (89%—100%) but were not included as DSM-IV diagnostic criteria.
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Objective:To investigate the prevalence of autistic disorder in the population of child in Changzhou city. Method:An epidemiological survey of autism was carried out in various areas in Changzhou,3 978 children were screened by Clancy autism behavior scale?childhood autism rating scale(CARS)?general development scale and childhood psycho-education rating scale. Results:7 patients were defined as autism.The prevalence of autistic disorder in Changzhou was 1.789‰. Conclusion:The prevalence of the autistic disorder was higher than that in other reports.It is very important to train primany pediatric psychiatrist and estabilish primary special rehabilitation institution.
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:Background and Purpose: Autism spectrum disorder (ASD) is one of the most common neurodevelopmental disorders characterized by impaired speech and communication and repetitive behavior. In the past few decades, there has been a gradual increase in the prevalence rates of ASD. The present study intends to find the prevalence of ASD in children between 16 and 30 months in Belagavi using Modified Checklist for ASD in Toddlers (MCHAT) questionnaire. Materials and Methods: This cross-sectional study was conducted on 510 children in the age group of 16–30 months in the Anganwadis and playschools of Belagavi using cluster sampling. The teachers were explained about the details of the study and were asked to gather children between 16 and 30 months along with their primary caretaker. The caretaker were explained about the details of the study, and participants were recruited based on the inclusion and exclusion criteria. Demographic data such as age, gender and socioeconomic status were recorded. The caretakers were given translated Kannada version of MCHAT-revised questionnaire to record their responses based on their child's behavior, and the total score was calculated by the primary investigator. Results: Among the 510 children screened for the risk of ASD, the prevalence was found to be 0.19%. The mean age of the participants was 24.5 ± 5.04 months. The prevalence was found in the upper-middle class in the age group of 28–30 months.Conclusion: The prevalence of ASD in Belagavi was 0.19% in children in the age group of of 16–30 months.
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Autism Spectrum Disorder (ASD) is a life -long neurodevelopmental disorder and significantly influences the quality of life in children. The screening of ASD in children aged between 16-30 months to early detection and early intervention for better prognosis.This cross-sectional study was conducted in the southwest of Iran (Yasuj) with dominant Lore ethnicity in 2017. A total of 1504 mother- child pairs with children aged between 16-30 months were selected through simple random sampling from the integrated national health system as the framework. ASD screening was implemented using the Modified checklist for autism in toddlers- revised, with follow-up interview (M-CHAT-R/F). Demographic data such as sex of children, and parental age at their time of pregnancy were collected for all children.Risk of ASD was low, moderate and high in 1447 (96.2%), 54 (3.6%) and 3 (0.2%) in screening, respectively. The estimated rate of ASD prevalence was 80 per 10000 (12 out of 1504) or 1 in 125. Mother's age ≥35 (P value = 0.002, OR = 11.65, CI95%: 2.49-54.35) and father's age ≥40 (P value = 0.0001, OR = 19.64, CI95%: 4.89-78.82) were predicting factors of ASD in toddlers aged 16-30 months.Given that, increasing the age of marriage in Iran and recent trend towards delayed childbearing; children born to older parents are at a higher risk for having ASD. So, increasing the public awareness is necessary.
Autistic spectrum
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Objective To identify the prevalence of childhood autism in Tianjin,in order to get evidences for preventing and recovering from autism. Methods 7 316 children aged 2 to 6 years in two districts in Tianjin were randomly surveyed. Results 8 of the 7 916 children were diagnosed as autism with a prevalence of 1.1 ‰.The gender ratio is 7∶1.The urban and rural prevalence are 1.4 ‰ and 0.8 ‰,respectively,and no statistical difference is found.All the autism patients are mental retardation(IQ70),and their MR degree is generally higher than other non-autism MR children. Conclusion Accurate intervention measure should be taken to improve mental,and neuropathic and psychiatric,impairments of the autism children.
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Background: There has been a reported worldwide increase in the apparent prevalence of autism and related autism spectrum disorders, Such an increase, whether due to an actual increase in incidence of autism or better detection methods.
Aims & Objective: To determine the prevalence and describe the clinical characteristics of autism spectrum disorders (ASDs) in school-age children.
Material and Methods: The study proceeded in four steps: screening, sampling, and diagnostic assessment. All parents and teachers asked to complete the ASSQ. Children from regular schools were considered screen positive if they had a teacher-rated ASSQ score ≥10.
Results: The result of the current study have shown that the overall prevalence of autism in the primary school of Taif district whose age ranged from 7 to 12 years was 0.035 % from a sample population of 22950 student , the prevalence of autism in male (0.031%) was greater than female (0.004%). The general characteristic of autistic disorders present in the sample population was concentrated on certain items mainly, Has a different style to communicate with others, either formally or informally (80 %), Deal with others with his own style (80%).
Conclusion: The overall prevalence of autism in the primary school of Taif district whose age ranged from 7 to 12 years was 0.035 %.
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We recruited 15,417 participants aged 18 to 36 months in central China using a stratified, multi-stage random sampling method. For children with a positive result in Toddlers screening test, further diagnostic assessment of autism spectrum disorders (ASD) was performed using the childhood autism rating scale and the Diagnostic and Statistical Manual of Mental Disorders. ASD prevalence among these children was 0.58% in Hubei province. Multivariate-adjusted logistic regression models were then used to explore potential ASD risk factors. One parent aged 35 or older, preterm birth, and birth weight < 2.0 kg remained significantly associated with elevated ASD risk (P < 0.05). These findings indicated that management of adverse perinatal factors may prevent the occurrence of ASD.
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Objective:To investigate the prevalence and related risk factors of infantile autism in Tianjin,in order to provide clues to etiology of autistic disorder.Methods:Using nested case-control study,7 904 children aged 1.5 to 3 were screened for autistic disorder by cluster random sampling method,412 screening-positive children entered the cohort and were diagnosed when they were 3 years old.4 healthy children were selected to match 1 case,with the same age and sex.The screen and diagnostic questionnaire used in this survey included checklist for Autism in Toddlers(CHAT),Childhood Autism Rating Scale(CARS),factor questionnaire and so on.There were four parts in factor questionnaire.Single variable and multivariate conditional logistic regression analysis were used to analyze risk factors in each parts.Results:22 children were diagnosed with autism,the prevalence of infant autism was 27.83/10 000 in Tianjin,95% confidence interval was 16.22/10 000 to 39.44/10 000.There were significant differences in autism prevalence between boys and girls(χ2=8.016,P0.05).The prevalence of infant autism in boys was 4 times that of girls.8 risk factors were found in single variable conditional logistic regression analysis.After multivariate analysis,the risk factors of autistic disorder were parental occupational exposure history,induced abortion history,passive smoking,edema of pregnancy,vomiting of pregnancy,neonatal jaundice.Conclusion:Autistic disorder should not be considered as an extremely rare disorder,and environmental factors relate with the cause of autism disorder.
Etiology
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