The Autism Crisis, US and Nigeria

The CDC's latest report from May 2025 shows that 1 in 31 children (3.2%) aged 8 years has been identified with autism spectrum disorder. That is a dramatic increase from the previous estimate of 1 in 36. But with some simple math, if we follow the trajectory we've been on, we're heading towards a future where autism could affect 1 in 6 children by 2050.

From 2000 to 2025, autism prevalence increased from 1 in 150 to 1 in 31, that is a 385% increase in just 25 years. If nothing changes, and the trend continues at even half that pace, we're looking at prevalence rates that would reshape our society. Our society is not ready!

The situation in Africa suggests an even larger crisis, one of underdiagnosis and missed opportunities. In Nigeria, hospital-based studies report a conservative picture with prevalence rates ranging from 1.4% to 2.3%.

The foundational work of Bakare et al. (2019) provided the first comprehensive scoping review of autism research in Nigeria, identifying critical gaps in knowledge about prevalence, clinical characteristics, and intervention services while emphasizing the universal nature of autism across all cultures and socioeconomic levels.

Chinawa et al. (2016) reported a 1.4% prevalence in South East Nigeria using hospital records, while Lagunju et al. (2014) found a 2.3% prevalence in Ibadan with an average diagnosis age of 44.7 months, highlighting the delayed identification patterns. Torty et al. (2024) identified a 1.6% prevalence in Calabar, with diagnoses coming around 3.8 years, again showing late detection. Adams (2024) documented how cultural beliefs in Nigeria and South Africa may delay diagnosis. Gabriel-Job and Wobo (2023) suggest that late diagnoses are caused by low awareness and limited service access in Port Harcourt.

Folorunso's (2025) research, found that while hospital data suggested a 2.3% prevalence rate, community studies indicate a 34.5% rate of undiagnosed autism spectrum characteristics in the general population. This gap between hospital data (1.4% - 2.3%) and community reality (34.5%) is suggesting that thousands of children may be falling through the cracks, never receiving a diagnosis or the support they need.

The American Academy of Pediatrics recommends that all children need autism screening by 18 and 24 months. Early identification allows families to access early intervention services during the most neuroplastic period of brain development.

Nigeria's data demonstrate that hospital-based identification may be missing the majority of cases, suggesting we need community health workers trained in early identification. Community-based approaches can reach children who never make it to specialized medical centers, particularly in rural areas where families have limited resources or face cultural barriers in seeking autism diagnostic evaluations.

Families need financial, educational, and emotional support since they receive the diagnosis. The stress documented by Adeoti and Afolabi (2022) among parents in Ibadan reflects a universal reality: autism affects entire family systems, not just the diagnosed child. And here's what concerns me about our future: we're entering an AI-dominated world just as autism rates are accelerating. How will vulnerable populations navigate technologies that are already challenging for neurotypical brains? Will AI systems be designed with neurodiversity in mind, or will they create new barriers for those who think and process information differently?

Soon, every family will have direct experience with autism. We need to invest in resources and support systems, in creating healthcare and educational systems that will start meeting the needs of the growing demand. We need to do better, perhaps starting with early screening. We must create an inclusive society where neurodiversity is celebrated and everyone can contribute. Let’s act with the urgency and compassion this crisis demands.

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