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Attempted Suicide Is Independently Associated with Increased In-Hospital Mortality and Hospital Length of Stay among Injured Patients at Community Tertiary Hospital in Japan: A Retrospective Study with Propensity Score Matching Analysis

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  • Yuko Ono

    (Department of Disaster and Emergency Medicine, Graduate School of Medicine, Kobe University, Kobe City 650-0017, Japan
    Department of Anesthesiology, Ohta General Hospital Foundation, Ohta Nishinouchi Hospital, Koriyama City 963-8558, Japan)

  • Tokiya Ishida

    (Department of Anesthesiology, Ohta General Hospital Foundation, Ohta Nishinouchi Hospital, Koriyama City 963-8558, Japan)

  • Nozomi Tomita

    (Department of Anesthesiology, Ohta General Hospital Foundation, Ohta Nishinouchi Hospital, Koriyama City 963-8558, Japan)

  • Kazushi Takayama

    (Department of Disaster and Emergency Medicine, Graduate School of Medicine, Kobe University, Kobe City 650-0017, Japan)

  • Takeyasu Kakamu

    (Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima City 960-1295, Japan)

  • Joji Kotani

    (Department of Disaster and Emergency Medicine, Graduate School of Medicine, Kobe University, Kobe City 650-0017, Japan)

  • Kazuaki Shinohara

    (Department of Anesthesiology, Ohta General Hospital Foundation, Ohta Nishinouchi Hospital, Koriyama City 963-8558, Japan)

Abstract

Suicide is an increasingly important public healthcare concern worldwide. Studies examining the effect of attempted suicide on clinical outcomes among patients with trauma are scarce. We conducted a retrospective cohort study at a community emergency department in Japan. We included all severely injured patients with an Injury Severity Score > 15 from January 2002 to December 2021. The primary outcome measure was in-hospital mortality. The other outcome of interest was hospital length of stay. One-to-one propensity score matching was performed to compare these outcomes between suicide attempt and no suicide attempt groups. Of the 2714 eligible patients, 183 (6.7%) had trauma caused by a suicide attempt. In the propensity score-matched analysis with 139 pairs, the suicide attempt group showed a significant increase in-hospital mortality (20.9% vs. 37.4%; odds ratio 2.27; 95% confidence intervals 1.33–3.87) compared with the no suicide attempt group. Among survivors, the median hospital length of stay was significantly longer in the suicide attempt group than that in the no suicide attempt group (9 days vs. 12 days, p = 0.0076). Because of the unfavorable consequences and potential need for additional healthcare, increased attention should be paid to patients with trauma caused by a suicide attempt.

Suggested Citation

  • Yuko Ono & Tokiya Ishida & Nozomi Tomita & Kazushi Takayama & Takeyasu Kakamu & Joji Kotani & Kazuaki Shinohara, 2024. "Attempted Suicide Is Independently Associated with Increased In-Hospital Mortality and Hospital Length of Stay among Injured Patients at Community Tertiary Hospital in Japan: A Retrospective Study wit," IJERPH, MDPI, vol. 21(2), pages 1-12, January.
    • Handle: RePEc:gam:jijerp:v:21:y:2024:i:2:p:121-:d:1324901
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    References listed on IDEAS

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    1. Wen Liu & Jingcheng Shi & Simin He & Xi Luo & Weijun Zhong & Fang Yang, 2021. "Understanding variations and influencing factors on length of stay for T2DM patients based on a multilevel model," PLOS ONE, Public Library of Science, vol. 16(3), pages 1-14, March.
    2. Julianne Holt-Lunstad & Timothy B Smith & J Bradley Layton, 2010. "Social Relationships and Mortality Risk: A Meta-analytic Review," PLOS Medicine, Public Library of Science, vol. 7(7), pages 1-1, July.
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