Externalizing disorders as attention deficit/hyperactivity disorder (ADHD) and oppositional defiant disorder (ODD) are common in children with nocturnal enuresis (NE), daytime urinary incontinence (DUI) and faecal incontinence (FI). We examined the prevalence rates of ADHD, ODD and incontinence in a defined geographical area and analysed the association between externalizing disorders and subtypes of incontinence. 1,676 parents of children who were presented at the mandatory school-entry medical examination completed a questionnaire with all DSM-IV items of ADHD, ODD and six questions regarding incontinence. 50.2% were male and mean age was 5.7 years. 9.1% had at least one subtype of incontinence (8.5% had NE, 1.9% DUI and 0.8% FI). Boys were significantly more affected by incontinence overall, NE, FI and ADHD than girls. 6.4% had ADHD, 6.2% had ODD and 2.6% were affected by ADHD and ODD. 10.3% of the children with incontinence had ADHD and 10.3% ODD. Children with FI were significantly more affected by externalizing disorders (50%) than children with isolated NE (14.5%), children with DUI (9.5%) and continent children (9.5%). Children with incontinence, especially those with FI, are at much higher risk of externalizing disorders. An additional effect of children with both ADHD and ODD having higher rates of incontinence than children with only one disorder could not be found. However, these children represent a high-risk group with lower compliance to treatment and worse outcome. Therefore, screening not only for ADHD but also for ODD should be implemented for all children with incontinence.

No abstract

Autism spectrum disorders (ASD) are defined by persistent deficits in reciprocal social interaction, communication, and language, as well as stereotyped and repetitive behavior. Functional incontinence, as well as ASD are common disorders in childhood. The aim of this systematic review was to give an overview of the co-occurrence of nocturnal enuresis (NE), daytime urinary incontinence (DUI), and fecal incontinence (FI) in ASD, and vice versa, of ASD in children with incontinence. A systematic literature search of the terms "incontinence", "enuresis", and "encopresis" in combination with "autism" or "Asperger" in four databases (Scopus, PubMed, PsycInfo and Web of science) was conducted. All studies that examined incontinence frequencies in samples with ASD, and studies that measured frequencies of ASD diagnoses or symptoms in samples with incontinence were included. Risk of bias and limitations of each study were described. After eligibility assessment, 33 publications were included in the review. The published literature implies a higher prevalence of incontinence in children with ASD compared to typically developing children. Limitations and biases as inappropriate diagnostic criteria for ASD and incontinence, selected samples, or lack of control groups are reported. Associations of incontinence in ASD with psychopathological symptoms were found. Vice versa, ASD symptoms are found in incontinent children, but no study included a non-ASD control sample. Incontinence symptoms are also reported as an adverse effect of medication in ASD. Due to methodological problems and definitional discrepancies in some publications, results have to be interpreted cautiously. Research in ASD and incontinence is scarce. More systematic research including state-of-the-art assessments is needed.

Children with incontinence have high rates of comorbid behavioral symptoms-three to six times higher than norms. Especially children with FI and combined subtypes of incontinence were affected. As behavioral symptoms and disorders will interfere with incontinence treatment, a general screening is recommended.

No abstract