Wen-Qian Li1, Xiao Liu, Ying Dai, Qian Cheng. 1. Department of Child Health Care, Children's Hospital of Chongqing Medical University, Chongqing 400014, China. chqq5@126.com.
Abstract
OBJECTIVE: To investigate the age of diagnosis of autism spectrum disorder (ASD) and the factors influencing the age of diagnosis in children. METHODS: A retrospective analysis was performed for the clinical data of 1 691 children who visited in the Children's Hospital of Chongqing Medical University for the first time and were definitely diagnosed with ASD between February 2011 and July 2017. A multiple linear regression model was used to identify the factors influencing the age of diagnosis of ASD. RESULTS: The ASD children had a mean age of 35±17 months (range 9-175 months) at diagnosis. Of all 1 691 children, the children who received a diagnosis of ASD at the age of 24-35 months accounted for the highest proportion (46.13%, 780/1 691), followed by those at the age of ≥36 months (33.41%, 565/1 691). The multiple linear regression analysis showed that the children who had language disorders or lived in the main urban area or whose parents had a high education level had a younger age at diagnosis than other children (P<0.05). CONCLUSIONS: Most ASD children have an age of 24-35 months at diagnosis. The age of diagnosis of ASD is associated with children's symptoms, living area, and parents' education level.
OBJECTIVE: To investigate the age of diagnosis of autism spectrum disorder (ASD) and the factors influencing the age of diagnosis in children. METHODS: A retrospective analysis was performed for the clinical data of 1 691 children who visited in the Children's Hospital of Chongqing Medical University for the first time and were definitely diagnosed with ASD between February 2011 and July 2017. A multiple linear regression model was used to identify the factors influencing the age of diagnosis of ASD. RESULTS: The ASDchildren had a mean age of 35±17 months (range 9-175 months) at diagnosis. Of all 1 691 children, the children who received a diagnosis of ASD at the age of 24-35 months accounted for the highest proportion (46.13%, 780/1 691), followed by those at the age of ≥36 months (33.41%, 565/1 691). The multiple linear regression analysis showed that the children who had language disorders or lived in the main urban area or whose parents had a high education level had a younger age at diagnosis than other children (P<0.05). CONCLUSIONS: Most ASDchildren have an age of 24-35 months at diagnosis. The age of diagnosis of ASD is associated with children's symptoms, living area, and parents' education level.
Authors: Benjamin Zablotsky; Lisa J Colpe; Beverly A Pringle; Michael D Kogan; Catherine Rice; Stephen J Blumberg Journal: Am J Intellect Dev Disabil Date: 2017-01
Authors: Jeremy R Parr; Ann Le Couteur; Gillian Baird; Michael Rutter; Andrew Pickles; Eric Fombonne; Anthony J Bailey Journal: J Autism Dev Disord Date: 2011-03
Authors: David S Mandell; Lisa D Wiggins; Laura Arnstein Carpenter; Julie Daniels; Carolyn DiGuiseppi; Maureen S Durkin; Ellen Giarelli; Michael J Morrier; Joyce S Nicholas; Jennifer A Pinto-Martin; Paul T Shattuck; Kathleen C Thomas; Marshalyn Yeargin-Allsopp; Russell S Kirby Journal: Am J Public Health Date: 2008-12-23 Impact factor: 9.308
Authors: Deborah L Christensen; Jon Baio; Kim Van Naarden Braun; Deborah Bilder; Jane Charles; John N Constantino; Julie Daniels; Maureen S Durkin; Robert T Fitzgerald; Margaret Kurzius-Spencer; Li-Ching Lee; Sydney Pettygrove; Cordelia Robinson; Eldon Schulz; Chris Wells; Martha S Wingate; Walter Zahorodny; Marshalyn Yeargin-Allsopp Journal: MMWR Surveill Summ Date: 2016-04-01