Males are diagnosed with autism spectrum disorder more frequently than females.
the verdict
SUPPORTED
the evidence backs this
confidence 88/100
Multiple clinical studies, reviews, and meta-analyses consistently confirm that autism spectrum disorder is diagnosed significantly more frequently in males than in females, with ratios typically cited around 4:1, though researchers emphasize that diagnostic biases and female camouflaging contribute to under-recognition in women.
Evidence for · 11
Clinical characteristics and problems diagnosing autism spectrum disorder in girls.
2018 · cited by 109
Paper [0] acknowledges the historical male-to-female ratio of four to one while discussing potential diagnostic and gender biases.
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More for · 10
Is There a Bias Towards Males in the Diagnosis of Autism? A Systematic Review and Meta-Analysis
2024 · cited by 94
Paper [1] confirms that autism is more frequently diagnosed in males through a systematic review and meta-analysis.
Autism, thy name is man: Exploring implicit and explicit gender bias in autism perceptions
2023 · cited by 42
Paper [2] notes that males are around three times more likely to possess an autism diagnosis than females.
In vivo translocator protein in females with autism spectrum disorder: a pilot study
2024 · cited by 13
Paper [4] states that sex-based differences in ASD prevalence are well-documented with an approximate 4:1 male-to-female ratio.
Race and Sex Bias in the Autism Diagnostic Observation Schedule (ADOS-2) and Disparities in Autism Diagnoses
2022 · cited by 12
Paper [5] utilizes a male-to-female ratio of approximately 4:1 in its discussion of diagnostic disparities.
Gender Differences in Autism Spectrum Disorder: A Systematic Review of Diagnosis, Intervention, and Outcomes
2024 · cited by 11
Paper [6] references the widely cited 4:1 male-to-female ASD diagnosis ratio while exploring underlying underdiagnosis in females.
Characterization of gut microbiota on gender and age groups bias in Thai patients with autism spectrum disorder
2025 · cited by 10
Paper [7] notes a higher ratio of males to females in the global prevalence of ASD.
Role of androgen receptors in sexually dimorphic phenotypes in UBE3A-dependent autism spectrum disorder
2025 · cited by 4
Paper [8] highlights a remarkable sex difference in ASD with a 4:1 male-to-female prevalence ratio.
Sexually dimorphic phenotypes and the role of androgen receptors in UBE3A-dependent autism spectrum disorder
2024 · cited by 2
Paper [9] points to the well-known 4:1 male-to-female prevalence ratio in autism spectrum disorders.
Systematic Review of Autism in Women: Invisibilised Profiles and Gender Bias
2026 · cited by 2
Paper [10] identifies a pronounced sex disparity in autism diagnosis with ratios up to 4.6:1.
The Urgency of Addressing the Underdiagnosis of Autism in Females
2023 · cited by 1
Paper [11] discusses the frequent oversight and underdiagnosis of autism in females, contributing to the observed diagnostic gap.