Ontario Psychotic Disorder Diagnoses Rise in Younger Generations

A large study involving over 12 million people in Canada===Ontario, Canada, published in the Canadian Medical Association Journal, indicates that individuals born more recently are being diagnosed with psychotic disorders, such as schizophrenia, more frequently and at younger ages. The study, conducted by researchers from ICES, North York General Hospital, The Ottawa Hospital, and Bruyère Health Research Institute, found a 60% increase in new cases among 14- to 20-year-olds between 1997 and 2023. Those born between 2000 and 2004 showed a 70% greater rate of new diagnoses compared to those born in 1975-1979. While the exact causes are unknown, potential contributing factors include substance use (cannabis, stimulants, hallucinogens), older parental age, socioeconomic stress, migration-associated stress, and negative childhood experiences. The findings align with similar trends observed in Denmark and Australia, highlighting a global concern and the need for further research into prevention and early support.