An elevated anxiety level among prepubertal autistic boys with non-treatment-seeking functional gastrointestinal disorders: A case-control study / Oscar W.H. WONG in Autism Research, 14-10 (October 2021)  

Public ISBD [article]  inAutism Research > 14-10 (October 2021) . - p.2131-2142 Titre : An elevated anxiety level among prepubertal autistic boys with non-treatment-seeking functional gastrointestinal disorders: A case-control study Type de document : texte imprimé Auteurs : Oscar W.H. WONG, Auteur ; Angela M.W. LAM, Auteur ; Kelly Y.C. LAI, Auteur ; Suk Ling MA, Auteur ; Se-fong HUNG, Auteur ; Sandra CHAN, Auteur ; Sunny WONG, Auteur ; Patrick W.L. LEUNG, Auteur Article en page(s) : p.2131-2142 Langues : Anglais (eng) Mots-clés : Anxiety/complications  Autism Spectrum Disorder/complications/epidemiology  Autistic Disorder/complications/epidemiology  Case-Control Studies  Child  Child, Preschool  Gastrointestinal Diseases/complications/epidemiology  Humans  Male  abdominal pain  anxiety  autism  constipation  functional gastrointestinal disorder  gut-brain axis  nausea Index. décimale : PER Périodiques Résumé : Children with autism commonly suffer from comorbid functional gastrointestinal disorders (FGID) and anxiety. The raised prevalence of both conditions in autism suggests complex reciprocal relationships, which are seldom explored in non-treatment-seeking FGID. The relationships between subtypes of FGID and anxiety are also unclear. This study recruited boys with autism and age-matched typically developing (TD) boys, aged 4-11 years, who were not actively seeking help for gastrointestinal problems. Their parents completed the Rome IV Diagnostic Questionnaires for Pediatric FGID. Four groups of children with and without autism/FGID were identified and compared on their anxiety level using the Spence children's anxiety scale. In 69 boys with autism and 69 age-matched TD boys, FGID were identified in 22 and 16 boys, respectively. ANCOVA demonstrated a significant interaction effect of autism and FGID on anxiety (F[1, 129] = 5.43, p = 0.021), while conditional logistic regression identified an interaction effect of autism and anxiety on the odds of FGID (OR 1.038, 95% CI 1.002-1.075, p = 0.038). Explorative post hoc analysis showed higher anxiety in functional nausea and vomiting disorder (p = 0.033) and functional abdominal pain disorder (p = 0.029) among boys with autism than TD boys with the same respective subtypes of FGID. In summary, among prepubertal boys with autism, the presence of FGID that are non-treatment-seeking in nature, has a significantly stronger association with higher levels of anxiety than TD boys. The strength of association may be more prominent in subtypes of FGID. Possible pathomechanisms including the underlying microbiota spectra and inflammatory paths should be explored in future studies. LAY SUMMARY: Anxiety and gastrointestinal problems are common symptoms in autism. Given that gut health could be linked to emotions, their association in young boys with autism was studied. The presence of nausea vomiting, or abdominal pain were associated with raised anxiety among boys with autism, yet this was not observed in typically developing boys. This suggests that anxiety among autistic children could be partly explained by the presence of FGID. En ligne : http://dx.doi.org/10.1002/aur.2555 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450 [article] An elevated anxiety level among prepubertal autistic boys with non-treatment-seeking functional gastrointestinal disorders: A case-control study [texte imprimé] / Oscar W.H. WONG, Auteur ; Angela M.W. LAM, Auteur ; Kelly Y.C. LAI, Auteur ; Suk Ling MA, Auteur ; Se-fong HUNG, Auteur ; Sandra CHAN, Auteur ; Sunny WONG, Auteur ; Patrick W.L. LEUNG, Auteur . - p.2131-2142. Langues : Anglais (eng) in Autism Research > 14-10 (October 2021) . - p.2131-2142 Mots-clés : Anxiety/complications  Autism Spectrum Disorder/complications/epidemiology  Autistic Disorder/complications/epidemiology  Case-Control Studies  Child  Child, Preschool  Gastrointestinal Diseases/complications/epidemiology  Humans  Male  abdominal pain  anxiety  autism  constipation  functional gastrointestinal disorder  gut-brain axis  nausea Index. décimale : PER Périodiques Résumé : Children with autism commonly suffer from comorbid functional gastrointestinal disorders (FGID) and anxiety. The raised prevalence of both conditions in autism suggests complex reciprocal relationships, which are seldom explored in non-treatment-seeking FGID. The relationships between subtypes of FGID and anxiety are also unclear. This study recruited boys with autism and age-matched typically developing (TD) boys, aged 4-11 years, who were not actively seeking help for gastrointestinal problems. Their parents completed the Rome IV Diagnostic Questionnaires for Pediatric FGID. Four groups of children with and without autism/FGID were identified and compared on their anxiety level using the Spence children's anxiety scale. In 69 boys with autism and 69 age-matched TD boys, FGID were identified in 22 and 16 boys, respectively. ANCOVA demonstrated a significant interaction effect of autism and FGID on anxiety (F[1, 129] = 5.43, p = 0.021), while conditional logistic regression identified an interaction effect of autism and anxiety on the odds of FGID (OR 1.038, 95% CI 1.002-1.075, p = 0.038). Explorative post hoc analysis showed higher anxiety in functional nausea and vomiting disorder (p = 0.033) and functional abdominal pain disorder (p = 0.029) among boys with autism than TD boys with the same respective subtypes of FGID. In summary, among prepubertal boys with autism, the presence of FGID that are non-treatment-seeking in nature, has a significantly stronger association with higher levels of anxiety than TD boys. The strength of association may be more prominent in subtypes of FGID. Possible pathomechanisms including the underlying microbiota spectra and inflammatory paths should be explored in future studies. LAY SUMMARY: Anxiety and gastrointestinal problems are common symptoms in autism. Given that gut health could be linked to emotions, their association in young boys with autism was studied. The presence of nausea vomiting, or abdominal pain were associated with raised anxiety among boys with autism, yet this was not observed in typically developing boys. This suggests that anxiety among autistic children could be partly explained by the presence of FGID. En ligne : http://dx.doi.org/10.1002/aur.2555 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450

Autism epidemiology in Hong Kong children and youths aged 6–17: Implications on autism screening and sex differences in the community / Oscar W.H. WONG in Autism, 29-11 (November 2025)  

Public ISBD [article]  inAutism > 29-11 (November 2025) . - p.2872-2884 Titre : Autism epidemiology in Hong Kong children and youths aged 6–17: Implications on autism screening and sex differences in the community Type de document : texte imprimé Auteurs : Oscar W.H. WONG, Auteur ; Sandra SM CHAN, Auteur ; Steven W.H. CHAU, Auteur ; Winnie CW CHU, Auteur ; Carol SW HO, Auteur ; Stephy WS HO, Auteur ; Se-fong HUNG, Auteur ; Samara HUSSAIN, Auteur ; Kelly Y.C. LAI, Auteur ; Angela M.W. LAM, Auteur ; Holly HL LO, Auteur ; Karen K.Y. MA, Auteur ; Suk Ling MA, Auteur ; Flora Y.M. MO, Auteur ; Pak Chung SHAM, Auteur ; Caroline K.S. SHEA, Auteur ; Suzanne H.W. SO, Auteur ; Kelvin KF TSOI, Auteur ; Patrick W.L. LEUNG, Auteur Article en page(s) : p.2872-2884 Langues : Anglais (eng) Mots-clés : Asian  autism  epidemiology  prevalence  screening  sex differences Index. décimale : PER Périodiques Résumé : Epidemiological studies on autism lack representation from Asia. We estimated the prevalence of autism among children and youths in Hong Kong using a two-stage approach. In addition, we evaluated the psychometric properties of the screening instrument and explored sex differences within an epidemiological context. A random school-based sample of 5,865 children and youths were screened with the Autism Spectrum Quotient-10 (AQ-10). Then, a subsample of 317 participants underwent the Autism Diagnostic Interview-Revised assessment. Prevalence was estimated by applying positive and negative predictive values (PPV/NPV) of AQ-10 derived from the subsample to the entire cohort. None of the screened negative participants had autism, resulting in an NPV of 100%. Discrepant PPVs were noted for males (20.4%) and females (5.20%). The estimated prevalence was 2.57% using sex-specific PPVs. Explorative analysis on AQ-10 Positive participants without the diagnosis (i.e. ‘false positives’) showed significantly elevated autistic symptoms. The prevalence of autism in Hong Kong is comparable to the recent estimates in Western countries, which poses a significant public health challenge. Despite the high false-positive rates, AQ-10 remains valuable for excluding autism and identifying those with autistic symptoms. Furthermore, community-based studies are crucial to address sex differences in autism expression.Lay abstract Although studies have found that autism is becoming more common, little is known whether this is true in Asian countries. This study looked into how many children and teenagers in Hong Kong might have autism. We first screened 5,865 school-aged children and youths with the Autism Spectrum Quotient-10 (AQ-10). Then, we conducted in-depth interviews with 317 of them to assess for autism. We found that around 2.57% of children and youths aged 6–17 years in Hong Kong might have autism. This number is similar to that of the Western countries. Furthermore, we also discovered that boys who were screened positive on the AQ-10 were more likely to have autism than girls. This could be because autism is more common in boys, and the AQ-10 might be better at spotting autism in boys than in girls. In the future, studies will need to find an optimal way of detecting autism in the community, considering how autism may present differently in boys and girls. En ligne : https://dx.doi.org/10.1177/13623613251360269 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=570 [article] Autism epidemiology in Hong Kong children and youths aged 6–17: Implications on autism screening and sex differences in the community [texte imprimé] / Oscar W.H. WONG, Auteur ; Sandra SM CHAN, Auteur ; Steven W.H. CHAU, Auteur ; Winnie CW CHU, Auteur ; Carol SW HO, Auteur ; Stephy WS HO, Auteur ; Se-fong HUNG, Auteur ; Samara HUSSAIN, Auteur ; Kelly Y.C. LAI, Auteur ; Angela M.W. LAM, Auteur ; Holly HL LO, Auteur ; Karen K.Y. MA, Auteur ; Suk Ling MA, Auteur ; Flora Y.M. MO, Auteur ; Pak Chung SHAM, Auteur ; Caroline K.S. SHEA, Auteur ; Suzanne H.W. SO, Auteur ; Kelvin KF TSOI, Auteur ; Patrick W.L. LEUNG, Auteur . - p.2872-2884. Langues : Anglais (eng) in Autism > 29-11 (November 2025) . - p.2872-2884 Mots-clés : Asian  autism  epidemiology  prevalence  screening  sex differences Index. décimale : PER Périodiques Résumé : Epidemiological studies on autism lack representation from Asia. We estimated the prevalence of autism among children and youths in Hong Kong using a two-stage approach. In addition, we evaluated the psychometric properties of the screening instrument and explored sex differences within an epidemiological context. A random school-based sample of 5,865 children and youths were screened with the Autism Spectrum Quotient-10 (AQ-10). Then, a subsample of 317 participants underwent the Autism Diagnostic Interview-Revised assessment. Prevalence was estimated by applying positive and negative predictive values (PPV/NPV) of AQ-10 derived from the subsample to the entire cohort. None of the screened negative participants had autism, resulting in an NPV of 100%. Discrepant PPVs were noted for males (20.4%) and females (5.20%). The estimated prevalence was 2.57% using sex-specific PPVs. Explorative analysis on AQ-10 Positive participants without the diagnosis (i.e. ‘false positives’) showed significantly elevated autistic symptoms. The prevalence of autism in Hong Kong is comparable to the recent estimates in Western countries, which poses a significant public health challenge. Despite the high false-positive rates, AQ-10 remains valuable for excluding autism and identifying those with autistic symptoms. Furthermore, community-based studies are crucial to address sex differences in autism expression.Lay abstract Although studies have found that autism is becoming more common, little is known whether this is true in Asian countries. This study looked into how many children and teenagers in Hong Kong might have autism. We first screened 5,865 school-aged children and youths with the Autism Spectrum Quotient-10 (AQ-10). Then, we conducted in-depth interviews with 317 of them to assess for autism. We found that around 2.57% of children and youths aged 6–17 years in Hong Kong might have autism. This number is similar to that of the Western countries. Furthermore, we also discovered that boys who were screened positive on the AQ-10 were more likely to have autism than girls. This could be because autism is more common in boys, and the AQ-10 might be better at spotting autism in boys than in girls. In the future, studies will need to find an optimal way of detecting autism in the community, considering how autism may present differently in boys and girls. En ligne : https://dx.doi.org/10.1177/13623613251360269 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=570

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