A STUDY OF DEMOGRAPHIC AND RISK FACTORS OF CHILDREN WITH AUTISM SPECTRUM DISORDER

2021 ◽  
pp. 7-9
Author(s):  
Bobby Hmar ◽  
Suresh Chakravorty ◽  
Ammu Anil ◽  
Ripunjay Khatoniar

Background of the study: Various risk factors have been reported in the development of Autism spectrum Disorder. The aim of our study is to explore the demographic and perinatal risk factors implicated in the development of ASD. A retrospective study was conducted with data of 49 children with ASD and found that total 71.3% of children were male 73.5% were in rst birth order. Out of 49 children 53.1% had history of Lower Segment Caesarean Section (LSCS). Indication of LSCS due to various obstetric or perinatal risk factors were reported in 17 cases. Three children had history of low birth weight with history of admission into Neonatal ICU. The study also explore the various co morbidity and found that ADHD (20.4%) was most common comorbidity followed by Mental retardation(18.4%), ADHD and MR(12.2%), seizure disorder and MR (8.2 %). This study found that male gender, rst birth order and perinatal risk factors are implicated in the development of Autism spectrum Disorder and majority of them have one or more another neuro developmental disorder as a comorbidity.

2021 ◽  
Author(s):  
Yu Li ◽  
Lu Han ◽  
Ning Ding ◽  
Ziyi Zhang ◽  
Yuan Lin ◽  
...  

Abstract Background Autism spectrum disorder (ASD) is a complex neurodevelopmental condition characterized by persistent challenges in social communication and interaction and restricted/repetitive patterns of behavior, interests or activities. An increasing number of studies have revealed that environmental exposure is a potential risk factor for ASD. The relationship between prenatal and perinatal risk factors and ASD has rarely been studied in large samples in China. Therefore, in this study, we compared children with ASD with typical developing (TD) children to assess the ASD-associated prenatal and perinatal risk factors and provide effective information for ASD prevention. Methods A case-control study of 709 children with autism spectrum disorder (ASD) and 709 gender-matched children with typical development was conducted to investigate the prenatal and perinatal risk factors of children with ASD compared with children with typical development ( TD). Through a self-developed general information questionnaire, the basic information (name, age, gender), prenatal factors (parents’ age at the child’s birth, parents’ education levels, use of assisted reproductive technology, history of miscarriage, gestational diabetes mellitus, gestational hypertension), and perinatal factors (delivery mode, full-term birth, parity, birth weight) of the children in the two groups were examined. Results The prenatal and perinatal factors of the groups were submitted to univariate analysis, the parent’s age at childbirth, education level, history of miscarriage, use of ART, pregnancy-induced hypertension, and GDM differed significantly between the two groups (P<0.05), and that among perinatal factors, infant parity and maturity also differed significantly between the two groups (P<0.05). These statistically significant factors were included in a binary logistic regression model. The results showed that the prenatal factors of young maternal age at the child’s birth (≤24 years vs 25-29 years, OR=2.408,95%CI:1.335~4.345), old paternal age at the childbirth(≥45years vs≤24years, OR=4.744, 95%CI:1.281~17.570 ), pregnancy induced hypertension (OR=6.178, 95%CI:2.311~16.517) and GDM(OR=0.220,95%CI:0.149~0.324), the perinatal factors of preterm birth(OR=4.434, 95%CI:2.872~6.846) and non-firstborn child(OR=1.387, 95%CI:1.029~1.869) are likely risk factors for ASD. Conclusion We show that some prenatal and perinatal factors are associated with a high prevalence of ASD in children.


2017 ◽  
Vol 34 (03) ◽  
pp. 295-304 ◽  
Author(s):  
Michael Fassett ◽  
Morgan Peltier ◽  
Deborah Wing ◽  
Anny Xiang ◽  
Vicki Chiu ◽  
...  

2021 ◽  
pp. 78-80
Author(s):  
Kondekar Alpana S ◽  
Sawant Vishal ◽  
Pendyala Chaitanya

Background: Autism spectrum disorder (ASD) is a complex neurodevelopmental condition, which is characterized by cognitive, behavioral, and social dysfunction. Their onset occurs in early childhood and during this period, there are various factors associated with autism risk. Hence,the present study was undertaken to determine the prevalence of various perinatal risk factors and its association with ASD in children. Methods: This was a retrospective study, included 200 cases of ASD over 5 years registered in pediatric neurodevelopment clinic at TN Medical College and BYL Nair Hospital, Mumbai. Study population divided in two groups- cases of ASD with perinatal risk factor and cases of ASD without perinatal risk factor. The prevalence of various perinatal risk factors in children with different grades of ASD calculated. Results: Based on ISAA score 149(74.5%) cases had mild autism and 51(25.5%) cases had moderate autism. The prevalence of various perinatal risk factors in children with different grades of ASD was found to be 79.5%(159/200). Pregnancy induced hypertension, bad obstetric history in mother were signicant risk factor for ASD. Lower segment caesarian section as mode of delivery was risk factor found to be associated more with mild form of autism, but statistically signicant association was found with vacuum delivery. We observed prematurity, low birth weight (LBW) and neonatal seizures as signicant risk factor, which may have contribution towards pathogenesis of ASD. Conclusion: The awareness between pediatrician and obstetrician about association of perinatal risk factors and ASD will denitely add to prevention and timely intervention of high risk patients.


2021 ◽  
Vol 61 (5) ◽  
pp. 247-52
Author(s):  
Clarissa Josephine Aditya ◽  
Jenni Kim Dahliana ◽  
Ariani Dewi Widodo ◽  
Rini Sekartini

Background Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder with a global prevalence of 7.6 in 1,000 children. The Modified Checklist for Autism in Toddlers - Revised (M-CHAT-R) is one of many screening tools for ASD. It is fast, easy to use, and has been translated and validated in the Indonesian language. Objective To determine the prevalence of ASD in Indonesia and its risk factors. Methods A cross-sectional study was conducted from March to October 2020. In the first protocol (March to July 2020), 219 children aged 16-30 months from 20 hospital walk-in clinics in five districts of Jakarta were included. Subjects’ parents filled out the M-CHAT-R questionnaire during their visit. A series of questions were asked to provide information about probable risk factors associated with ASD: gender, family history of ASD, preterm birth, low birth weight (LBW), and history of seizures. The second protocol (August to October 2020) was completed by parents via an online form, where 746 children aged 16-30 months were enrolled. Therefore, a total of 965 subjects were eligible for statistical analysis. Results Of 965 subjects, 56.58% were males. Subjects’ mean of age was 22.59 (SD 4.15) months. M-CHAT-R screening showed that 34 (3.52%) subjects were at high risk of developing ASD. Only male gender was significantly associated with ASD. Conclusion We screened for ASD in healthy 16-30-month-old Indonesian children. The rate of high-risk M-CHAT-R score was 3.52%. Male gender was a significant risk factor for high-risk M-CHAT-R results.


2019 ◽  
Vol 6 (1) ◽  
pp. 14-19
Author(s):  
Maryam Mohammadian-Khoshnoud ◽  
Tahereh Omidi ◽  
Nasrin Shirmohammadi-Khorram ◽  
Jalal Poorolajal

Background and aims: Despite substantial advances in the etiology of autism spectrum disorder (ASD), the environmental risk factors have not yet been well understood. The present study investigated the association between ASD, and maternal and perinatal risk factors. Methods: This matched, case-control study was conducted in Hamadan, the west of Iran, from November 2015 to May 2016. We enrolled 41 children with ASD aged 3-17 years. We selected four controls per one case from the same hospital where patients were born. Controls were separately matched with cases for sex, age, and birth year. Results: We compared 41 ASD cases with 164 controls. After adjusting the odds ratio (95% CI), ASD was significantly associated with third-degree relatives consanguinity [3.29 (1.39, 7.75)], short birth length [4.99 (1.15, 21.60)], short head circumference [7.87 (1.48, 41.76), respiratory distress syndrome at birth 3.97 (1.91, 8.22)], respiratory assistance at birth [2.92 (1.39, 6.10)], birth hypoxia [2.85 (1.35, 5.99)], and low 1-minute Apgar score [3.65 (1.04, 12.75)]. Conclusions: Our findings suggest that ASD may be associated with multiple maternal and perinatal risk factors. Evidence based on large prospective multicenter cohort studies is required to indicate the impacts of maternal and perinatal exposures.


2018 ◽  
Vol 11 (02) ◽  
pp. 67-73
Author(s):  
Arjun Bhattarai ◽  
Nawaraj KC ◽  
N Subedi ◽  
Namrata KC ◽  
SM Bijukchhe ◽  
...  

Background: Autism, or autism spectrum disorder, refers to a broad conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication. Objectives: To determine the demographic profile of patients diagnosed with ASD, determine the significant prenatal and perinatal risk factors associated with ASD. Results: A total of 116 subjects were included in the study with 58 cases and 58 controls. They belong to the age ranging from 4 to 16 years old. Every case had a confirmed diagnosis of autism at NCH. There was a significant association noted between neonatal jaundice, nulliparity (OR=2.38; 95% CI, 0.85-6.8) and family history of autism (OR=5.30; 95% CI, 1.29-25.1) with ASD. Exposure to x-ray, medical problems, medicine intake and maternal complications during pregnancy were not significantly associated with ASD with OR 0.74; 95% CI, (0.12-4.15), OR 1.00; 95% CI (0.38-2.61), OR1.49; 95% CI, (0.63-3.53), and OR 1.27; 95% CI, (0.28-6.05), respectively. Conclusion: The current study indicates that the only significant predictor of ASD is a family history of autism. However, neonatal jaundice, maternal age of >40 years old, smoking during pregnancy and nulliparity showed a trend towards being risk factors for ASD. None of the other prenatal and perinatal characteristics significantly predicts ASD.


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