Case histories

Incidence – the rate of new cases in the population – as a percentage of level in 2000 or 2001

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For autism, incidence per 100k, for ADHD, per 1k person-years, for leukaemia, age-standardised rate per 100k

Chart: The Spectator (rXlLh)Source: CRUK cancer stats data hub, Independent review into mental health conditions, ADHD and autism: interim report, ADHD in Children and Adults in England, 2000–2025: Recorded Prevalence and Diagnostic Trends (John, Stewart at al)