A review of studies from 12 countries shows that cases of self-harm in children and young people are increasing, especially among girls

The study is of very high quality. JAMA Pediatrics is the leading journal in pediatrics (first in impact factor and importance in its field). Systematic reviews and meta-analyses provide highly relevant information, as they integrate data from different studies (in this case, 42 studies from 12 different countries, reaching very large population samples). Adding up the subjects from the different studies results in an impressive sample size, which increases the reliability of the results.

All international and national data pointed to this very significant progressive increase in self-injurious behaviors (SIBs) in children and young people over the last two decades. This study simply confirms this clinical impression with data, indicating a 3.5% annual increase in SIB rates and generalizing it to different countries (regardless of cultural factors). It points out that this behavior is increasing especially among girls. Confirming a suspicion with a meta-analysis like this dispels all doubts and definitively clarifies the clinical picture.” Clinical practice.

Although Spain is not included, the results can certainly be extrapolated to our country. Studies confirming this hypothesis and trend have also been conducted here. They were not included due to the restrictive inclusion criteria for the review.

There are always limitations to consider, but this is a very reliable and well-executed study. Undoubtedly, the strengths outweigh the limitations.

It is important to note that these are very heterogeneous studies, and the generalizability of the results worldwide (especially to countries in Asia or Africa, or to rural areas) may be more limited.

In summary, a very good article that provides highly reliable results.