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Published in: BMC Emergency Medicine 1/2021

Open Access 01-12-2021 | Triage | Research

Factors associated with undertriage in patients classified by the need to visit a hospital by telephone triage: a retrospective cohort study

Authors: Ryota Inokuchi, Xueying Jin, Masao Iwagami, Toshikazu Abe, Masatoshi Ishikawa, Nanako Tamiya

Published in: BMC Emergency Medicine | Issue 1/2021

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Abstract

Background

Prehospital telephone triage stratifies patients into five categories, “need immediate hospital visit by ambulance,” “need to visit a hospital within 1 hour,” “need to visit a hospital within 6 hours,” “need to visit a hospital within 24 hours,” and “do not need a hospital visit” in Japan. However, studies on whether present and past histories cause undertriage are limited in patients triaged as need an early hospital visit. We investigated factors associated with undertriage by comparing patient assessed to be appropriately triaged with those assessed undertriaged.

Methods

We included all patients classified by telephone triage as need to visit a hospital within 1 h and 6 h who used a single after-hours house call (AHHC) medical service in Tokyo, Japan, between November 1, 2019, and November 31, 2020. After home consultation, AHHC doctors classified patients as grade 1 (treatable with over-the-counter medications), 2 (requires hospital or clinic visit), or 3 (requires ambulance transportation). Patients classified as grade 2 and 3 were defined as appropriately triaged and undertriaged, respectively.

Results

We identified 10,742 eligible patients triaged as need to visit a hospital within 1 h and 6 h, including 10,479 (97.6%) appropriately triaged and 263 (2.4%) undertriaged patients. Multivariable logistic regression analyses revealed patients aged 16–64, 65–74, and ≥ 75 years (adjusted odds ratio [OR], 2.40 [95% confidence interval {CI} 1.71–3.36], 8.57 [95% CI 4.83–15.2], and 14.9 [95% CI 9.65–23.0], respectively; reference patients aged < 15 years); those with diabetes mellitus (2.31 [95% CI 1.25–4.26]); those with dementia (2.32 [95% CI 1.05–5.10]); and those with a history of cerebral infarction (1.98 [95% CI 1.01–3.87]) as more likely to be undertriaged.

Conclusions

We found that older adults and patients with diabetes mellitus, dementia, or a history of cerebral infarction were at risk of undertriage in patients triaged as need to visit a hospital within 1 h and 6 h, but further studies are needed to validate these findings.
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Literature
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go back to reference Graversen DS, Christensen MB, Pedersen AF, et al. Safety, efficiency and health-related quality of telephone triage conducted by general practitioners, nurses, or physicians in out-of-hours primary care: a quasi-experimental study using the assessment of quality in telephone triage (AQTT) to assess audio-recorded telephone calls. BMC Fam Pract. 2020;21:84.CrossRef Graversen DS, Christensen MB, Pedersen AF, et al. Safety, efficiency and health-related quality of telephone triage conducted by general practitioners, nurses, or physicians in out-of-hours primary care: a quasi-experimental study using the assessment of quality in telephone triage (AQTT) to assess audio-recorded telephone calls. BMC Fam Pract. 2020;21:84.CrossRef
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go back to reference Inokuchi R, Morita K, Jin X, Ishikawa M, Tamiya N. Pre- and post-home visit behaviors after using after-hours house call (AHHC) medical services: a questionnaire-based survey in Tokyo. BMC Emerg Med: Japan; 2021. [In press] Inokuchi R, Morita K, Jin X, Ishikawa M, Tamiya N. Pre- and post-home visit behaviors after using after-hours house call (AHHC) medical services: a questionnaire-based survey in Tokyo. BMC Emerg Med: Japan; 2021. [In press]
Metadata
Title
Factors associated with undertriage in patients classified by the need to visit a hospital by telephone triage: a retrospective cohort study
Authors
Ryota Inokuchi
Xueying Jin
Masao Iwagami
Toshikazu Abe
Masatoshi Ishikawa
Nanako Tamiya
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Emergency Medicine / Issue 1/2021
Electronic ISSN: 1471-227X
DOI
https://doi.org/10.1186/s12873-021-00552-x

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