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Mortality

Spatiotemporal Dynamics of Suicide in Thailand: New Insights from National Surveillance Data

Strategic Insights

— 1 min read

According to a recent study published in Scientific Reports, suicide is a critical but neglected public health concern in Asia, particularly in Thailand, where limited research exists on the topic. The study conducted an extensive analysis of routine Thai suicide report data from 1997 to 2021 to investigate suicide trends and associations with risk factors. The findings highlight the need for targeted interventions and more effective mental health policies responsive to the nuances of regional and sex-specific trends.

Key Takeaways:

  • Between 1997 and 2021, Thailand recorded 106,955 suicide deaths, with males accounting for 78% of the total.
  • The national suicide rate peaked in 1999 and subsequently declined by 29.4% through 2006, followed by a moderate increase of 11.5% from 2018 to 2021.
  • The northern region consistently exhibited the highest crude suicide rates across the study period.
  • A persistent sex disparity was observed, with male suicide rates being more than three times higher than female rates and showing greater temporal variability.
  • Suicide hotspots were identified primarily in northern and eastern provinces, highlighting the need for interventions responsive to regional nuances.
  • Significant associations were found between suicide risk and financial distress as well as crime-related indicators, reflecting complex spatial and temporal dynamics.
  • The study emphasizes the integration of spatiotemporal insights into policy frameworks to foster enhanced well-being throughout Thailand.

Statistics:

  • 106,955: Total number of suicide deaths in Thailand between 1997 and 2021
  • 78%: Proportion of males among total suicide deaths in Thailand
  • 29.4%: Decline in national suicide rate from 1999 to 2006
  • 11.5%: Moderate increase in national suicide rate from 2018 to 2021
  • Twice as high: Male to female suicide rate ratio across the study period

Sources:

  • Scientific Reports, 2025;15(1):35220.
  • NewsRx. Reports Summarize Mental Health Diseases and Conditions Study Results from Mahidol University (Spatiotemporal epidemiology and hierarchical analysis of suicide mortality and associated risk factors in Thailand using national surveillance data ...). Mental Health Weekly Digest. October 20, 2025; p 753.

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