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The time for suicide

M Gallerani1, F M Avato, D Dal Monte

  • 1Emergency Department, St Anna Hospital, Corso Giovecca, Italy.

Psychological Medicine
|July 1, 1996
PubMed
Summary
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This study analyzed 223 suicide cases in Italy over 10 years. Findings reveal a distinct temporal pattern, with a significant increase in suicides during late morning and early afternoon hours.

Area of Science:

  • Forensic Science
  • Public Health
  • Chronobiology

Background:

  • Understanding temporal patterns in suicide occurrence is crucial for public health interventions.
  • Previous research suggests diurnal variations in suicide, but specific time-of-day patterns require further investigation.

Purpose of the Study:

  • To investigate the existence of a time-specific pattern in suicide occurrences.
  • To identify specific hours or periods with a higher incidence of suicide.

Main Methods:

  • Analysis of 223 suicide cases over a 10-year period in Ferrara, Italy.
  • Precise, presumptive, and probable time of death determination for cases.
  • Statistical analysis using the chi-squared test for goodness-of-fit and single cosinor analysis.

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Main Results:

  • A significant temporal pattern was identified in the overall sample.
  • The pattern was characterized by a peak occurrence of suicides in the late morning to early afternoon hours.
  • This pattern was consistent across both male and female subgroups.

Conclusions:

  • Suicide occurrence exhibits a discernible diurnal pattern, peaking in the late morning and early afternoon.
  • This finding has implications for timing public health resources and interventions.
  • Further research should explore the underlying factors contributing to this temporal variation.