Trends in non-suicidal self-injury among adolescents: A global cross-temporal meta-analysis, 2007-2023.

Psychol Med · 2025 · PMC13058657 · PMID 41216717

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a decreasing trendno p-value reported

However, some follow-up studies have observed a decreasing trend in NSSI severity among high school students (Guerry & Prinstein, 2009 ).

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did not reach statistical significanceno p-value reported

The analysis revealed the following: (1) Although the severity of NSSI showed a small to moderate upward trend from 2007 to 2023, this increase did not reach statistical significance.

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