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Many autistic women* deliberate about whether or not they should seek a formal diagnosis of autism, weighing up the potential costs and benefits. Often, after they have made that sometimes difficult and painful decision to initiate a diagnostic assessment for themselves, there is a long and time-consuming road ahead before they find someone with the knowledge and experience to make an accurate diagnosis. Research shows that at the time of writing, the average age of being diagnosed autistic for boys with fluent speech around the world is 8 years old, whilst for girls, the average age is 12 years old.
There are many pathways to diagnosis for girls and women, and we have found that these include:
Historically, far fewer females have been recognised as being autistic compared to males, with the ratio standing at approximately one female for every 4 males since the early 1990s. However, as clinicians who specialise in autism, we suspected that we would see a levelling out of this gender ratio. A fascinating research study conducted in Scotland (Rutherford et al, 2016) showed prevalence rates across the genders at 5.5 boys for every 1 girl for very young children, 3.5:1 for children and adolescents overall, 2.3:1 for adolescents only, and 1.8:1 in adulthood. These findings indicate not only that the true prevalence of autism in women is far higher than once thought, but also underline that females are being diagnosed much later.
In considering whether to pursue a formal diagnosis we think it is helpful to consider the advantages of a diagnosis, which we see as being these:
To conclude, our own advice on whether to seek a diagnosis, is to just do it, and the earlier the better. It answers the question and ends the uncertainty and speculation. It is our experience that autistic women need to know about their neurological difference as early as possible in a factual, celebratory and empathic way to allow them to grow into and appreciate who they are, instead of living by their own and others’ ignorant judgements.
Whether you are autistic yourself, are a Mother of an autistic girl, or are seeking formal recognition of autism for yourself or your daughter, we recommend our on-demand courses Autistic Girls and Autistic Women. We give more information on the female presentation of autism, including recent research on females and strategies autistic girls and women have found helpful for navigating the social, sensory, identity, emotional and executive challenges that can present with autism.
*Wherever the words women, woman, girl, and female are used in this article, we mean the gender assigned at birth to that individual.
Rutherford, M. (2016). Gender ratio in a clinical population sample, age of diagnosis and duration of assessment in children and adults with autism spectrum disorder, Autism, 20(5),628-634.
Cook, B. & Garnett, M (Eds.). (2018), Spectrum Women*: Walking to the Beat of Autism. JKP: London.
*Recent Review of Spectrum Women book on Amazon:
“I’m currently waiting for my Autism identification and have read over 20 books as I research neurodiversity and autism diagnosis for myself. If you’ve already read the basics of autism and the identifying behaviours, you might well be looking for a positive experience. This is it."
"In this book 16 women come together (not 15?) from around the world to pool their knowledge and share their personal and professional experiences of the cluster of behaviours that is currently labelled ‘high functioning autism or Aspergers'"
"I felt excited and empowered by this book."
"If you download a sample from Amazon, don’t be put off by an unusual and bouncy introduction, read on. A brilliant oasis of inspiration, thank you so much, I needed this!"