Evidence map›Paper›PMID 39609761›Full record

ArticleBMC psychiatry2024

Seasonal variation in suicide: age group and summer effects in the United States (2015-2020).

Samantha To, Erick Messias, Laura Burch, John Chibnall

Abstract read
In one paragraph

Article in BMC psychiatry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed.

  1. Article
  2. Observational
  3. Article
  4. Article
  5. Article
  6. Article
  7. Seasonal variations in suicide mortality in Canada: A nationwide analysis.Canadian journal of public health = Revue canadienne de sante publique · 2026
    Article
  8. Review
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Samantha ToSaint Louis University School of Medicine, 1438 S. Grand Blvd, St. Louis, MO, 63104, USA. samantha.to@ssmhealth.com.
Erick MessiasSaint Louis University School of Medicine, 1438 S. Grand Blvd, St. Louis, MO, 63104, USA.
Laura BurchSaint Louis University, Saint Louis, MO, USA.
John ChibnallSaint Louis University, Saint Louis, MO, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSuicide is a global public health concern that affects more than 700,000 people globally every year. Seasonal variation in suicide rates is a phenomenon that has been well-documented, but recent data on the seasonality of suicide within specific age groups and sex in the United States remains less well understood.

methodsPublicly available data on monthly suicides was obtained from the Underlying Cause of Death database, CDC WONDER, from 2015-2020. The incidence of summer suicides, from June, July and August, for two groups, 15-24 and ages 25 + , was calculated and a two-sided test was performed. Seasonal Decomposition analysis was performed and time series created from 2015-2020 for every age group then converted into Trend, Seasonality, and Residual respectively.

resultsFor Americans ages 15-24, the highest spike in suicides was in autumn, September-October, with a trough in June. This is the only age group in which this occurred, differing from previous understanding of the seasonality of suicide in the literature. With all other age groups (25-34, 35-44, 45-54, 55-64, 65-74, 75 +) there was a consistent pattern of a peak in late spring/early summer, a small peak in fall, and a trough in late winter.

conclusionsThere is a seasonal variation in suicide deaths in the United States with the youngest group, ages 15-24, presenting a different pattern compared to other ages. There were no significant differences in suicide seasonality by sex.

Indexed as

SeasonsSuicideAdolescentAdultAgedAge FactorsFemaleHumansIncidenceMaleMiddle AgedUnited StatesYoung AdultSuicideSuicide by ageSuicide peakSuicide seasonal variation

Identifiers

PMID39609761
PMCPMC11603963

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.