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Predictive Factors for Hospitalization of Patients with Heat Illness in Yamaguchi, Japan

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  • Takahiro Yamamoto

    (Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

  • Masaki Todani

    (Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

  • Yasutaka Oda

    (Department of Acute and General Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

  • Tadashi Kaneko

    (Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

  • Kotaro Kaneda

    (Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

  • Motoki Fujita

    (Department of Acute and General Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

  • Takashi Miyauchi

    (Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

  • Ryosuke Tsuruta

    (Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
    Department of Acute and General Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan)

Abstract

The objective of the study was to investigate the predictive factors for the hospitalization of patients who presented with mild to moderate heat illness at an emergency department. We conducted a retrospective survey of hospitals with an emergency department in Yamaguchi Prefecture, Japan. The survey questionnaire entries included patient age, sex, use of an ambulance, vital signs, blood examination conducted at the emergency department, the length of hospitalization, and outcome. We analyzed the predictive factors for hospitalization in patients with heat illness. A total of 127 patients were analyzed. Of these, 49 (37%) were admitted, with 59% discharged on the day following admission. In univariate analysis, the following inpatient characteristics were predictive for hospitalization: old age, low Glasgow Coma Scale score, elevated body temperature, increased serum C-reactive protein, and increased blood urea nitrogen. In logistic regression multivariate analysis, the following were predictive factors for hospitalization: age of ≥ 65 years (odds ratio (OR) 4.91; 95% confidence interval (CI) 1.42–17.00), body temperature (OR 1.97; 95% CI 1.14–3.41), Glasgow Coma Scale (OR 0.40; 95% CI 0.16–0.98), and creatinine (OR 2.92; 95% CI 1.23–6.94). The results suggest that the elderly with hyperthermia, disturbance of consciousness, and elevated serum creatinine have an increased risk for hospitalization with heat illness.

Suggested Citation

  • Takahiro Yamamoto & Masaki Todani & Yasutaka Oda & Tadashi Kaneko & Kotaro Kaneda & Motoki Fujita & Takashi Miyauchi & Ryosuke Tsuruta, 2015. "Predictive Factors for Hospitalization of Patients with Heat Illness in Yamaguchi, Japan," IJERPH, MDPI, vol. 12(9), pages 1-11, September.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:9:p:11770-11780:d:55991
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    Citations

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    Cited by:

    1. Takahiro Yamamoto & Motoki Fujita & Yasutaka Oda & Masaki Todani & Toru Hifumi & Yutaka Kondo & Junya Shimazaki & Shinichiro Shiraishi & Kei Hayashida & Shoji Yokobori & Shuhei Takauji & Masahiro Waka, 2018. "Evaluation of a Novel Classification of Heat-Related Illnesses: A Multicentre Observational Study (Heat Stroke STUDY 2012)," IJERPH, MDPI, vol. 15(9), pages 1-17, September.
    2. Kazuki Shimizu & Stuart Gilmour & Hiromi Mase & Phuong Mai Le & Ayaka Teshima & Haruka Sakamoto & Shuhei Nomura, 2021. "COVID-19 and Heat Illness in Tokyo, Japan: Implications for the Summer Olympic and Paralympic Games in 2021," IJERPH, MDPI, vol. 18(7), pages 1-12, March.

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