EGAL: Environmental and Genetic Effects on Autism Longitudinal

EGAL: Environmental and Genetic Effects on Autism Longitudinal - EGAL: Environmental and Genetic Effects on Autism Longitudinal

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON51612

Enrollment

1000

Registered

2022-03-03

Start date

2026-04-01

Completion date

Unknown

Last updated

2026-03-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autism Autism Spectrum Disorder

Interventions

None listed

Eligibility

Age

16 Years to 64 Years

Inclusion criteria

Inclusion criteria: ASD diagnosis >= 16 years old Able to provide consent for themselves To ensure most of the data can be used in our analyses, the following additional inclusion criteria apply: Consent to use four digits of postal code European ethnicity

Exclusion criteria

Exclusion criteria: No ASD diagnosis

Design outcomes

Primary

Measure	Time frame
-ASD case/control status -Autistic traits: Autistic traits are measured using validated questionnaires (e.g. Autism Quotient Short (AQ-short)) -Self-reported comorbidities: Assessed comorbities include additional diagnoses, mood problems and insomnia. Comorbities are measured using validated questionnaires (e.g. Strengths and Difficulties Questionnaire (SDQ), Hospital Anxiety and Depression Rating Scale (HADS)) and self-report. -Self-reported quality of life. Quality of life is measured using the Cantril Self-Anchoring Scale: the Ladder and with validated, more in-depth quality of life questionnaires. In addition, quality of life is measured with questions on occupation history, and educational attainment.	—

Measure

Time frame

-ASD case/control status -Autistic traits: Autistic traits are measured using validated questionnaires (e.g. Autism Quotient Short (AQ-short)) -Self-reported comorbidities: Assessed comorbities include additional diagnoses, mood problems and insomnia. Comorbities are measured using validated questionnaires (e.g. Strengths and Difficulties Questionnaire (SDQ), Hospital Anxiety and Depression Rating Scale (HADS)) and self-report. -Self-reported quality of life. Quality of life is measured using the Cantril Self-Anchoring Scale: the Ladder and with validated, more in-depth quality of life questionnaires. In addition, quality of life is measured with questions on occupation history, and educational attainment.

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Countries

Netherlands

Outcome results