The prevalence of a probable mental disorder in children aged 8 to 16 years rose between 2017 and 2020, from 12.5% in 2017 to 17.1% in 2020. Rates in the subsequent survey waves were similar with no statistically significant differences between these years. In 2021, 17.7% of children in this age group had a probable mental disorder, in 2022, the figure was 19.0% and in 2023, it was 20.3%.
The prevalence of a probable mental disorder for both children aged 8 to 10 years and 11 to 16 years was higher in 2020 compared with 2017 but remained similar with no statistically significant changes between the subsequent survey waves.
In young people aged 17 to 19 years, rates of a probable mental disorder rose from 10.1% in 2017 to 17.7% in 2020. Rates did not change between 2020 and 2021. However, there was an increase in the rate of a probable mental disorder between 2021 and 2022, from 17.4% in 2021 to 25.7% in 2022. The rates remained stable between 2022 (25.7%) and 2023 (23.3%).
For girls and young women in both age groups (8 to 16 years, and 17 to 19 years), prevalence of probable mental disorder rose between 2017 and 2020, then remained stable over the subsequent survey waves. Rates were similar between 2022 and 2023.
For boys aged 8 to 16 years, prevalence of probable disorder also rose between 2017 and 2020, and then remained stable. For young men aged 17 to 19 years, rates were similar between 2017 and 2020, and across the subsequent survey waves.
Rates of a probable mental disorder for those aged 20 to 23 years were similar in 2021 (16.6%), 2022 (18.7%) and 2023 (21.6%). This was the case both for young men and for young women. There was no 2017 or 2020 data for this age group.
For more information see: Table 1.2 of the Excel data tables.