Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional study

Background: Assessing fall risk is a complex process requiring the integration of diverse information and cognitive strategies. Despite this complexity, few studies have explored how nurses make these judgements. Moreover, existing research suggests variability in nurses’ fall risk assessments, but...

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Main Authors: Miyuki Takase, Naomi Kisanuki, Yoko Sato, Kazue Mitsunaka, Masako Yamamoto
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:International Journal of Nursing Studies Advances
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666142X25000633
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author Miyuki Takase
Naomi Kisanuki
Yoko Sato
Kazue Mitsunaka
Masako Yamamoto
author_facet Miyuki Takase
Naomi Kisanuki
Yoko Sato
Kazue Mitsunaka
Masako Yamamoto
author_sort Miyuki Takase
collection DOAJ
description Background: Assessing fall risk is a complex process requiring the integration of diverse information and cognitive strategies. Despite this complexity, few studies have explored how nurses make these judgements. Moreover, existing research suggests variability in nurses’ fall risk assessments, but the reasons for this variation and its appropriateness remain unclear. Objective: This study aimed to investigate how nurses judge fall risk, and how cognitive biases and contextual factors are associated with their judgements. Methods: Using purposive sampling, 335 nurses from six hospitals in western Japan participated in an online survey. The participants rated the likelihood of falls in 18 patient scenarios and completed measures of cognitive bias such as base-rate neglect, belief bias, and availability bias. A linear mixed-effects regression tree was used to identify factors related to their judgements, and a linear mixed-effects regression model examined associations between judgement variability, cognitive biases, and clinical speciality. Results: Nurses’ fall risk assessments were primarily determined by whether patients called for assistance, followed by the use of sleeping pills, the presence of a tube or drain, and patient mobility status. Judgement variability was linked to nurses’ gender, education, clinical context/speciality, and susceptibility to availability bias. Conclusion: Variability in clinical judgement may be justified when reflecting personalised, context-specific care. However, inconsistencies arising from cognitive biases are problematic. Healthcare organisations should offer targeted training to enhance contextual expertise and reduce the influence of cognitive biases on fall risk assessments. Study registration: Not registered.
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spelling doaj-art-eefd8e0ce31d4a7290f143bea4eccd2f2025-08-20T02:05:20ZengElsevierInternational Journal of Nursing Studies Advances2666-142X2025-06-01810035610.1016/j.ijnsa.2025.100356Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional studyMiyuki Takase0Naomi Kisanuki1Yoko Sato2Kazue Mitsunaka3Masako Yamamoto4Yasuda Women’s University, School of Nursing, 6-13-1 Yasuhigashi, Asaminami-Ku, Hiroshima-Shi, Hiroshima 7310153, Japan; Corresponding author at: Yasuda Women’s University, School of Nursing, 6-13-1 Yasuhigashi, Asaminami-Ku, Hiroshima-Shi, Hiroshima 7310153, Japan.Yasuda Women’s University, School of Nursing, 6-13-1 Yasuhigashi, Asaminami-Ku, Hiroshima-Shi, Hiroshima 7310153, JapanHiroshima University Hospital, Department of Nursing, 1-2-3 Kasumi, Minami-Ku, Hiroshima-Shi, Hiroshima 7340037, JapanHiroshima University Hospital, Department of Nursing, 1-2-3 Kasumi, Minami-Ku, Hiroshima-Shi, Hiroshima 7340037, JapanYasuda Women’s University, School of Nursing, 6-13-1 Yasuhigashi, Asaminami-Ku, Hiroshima-Shi, Hiroshima 7310153, JapanBackground: Assessing fall risk is a complex process requiring the integration of diverse information and cognitive strategies. Despite this complexity, few studies have explored how nurses make these judgements. Moreover, existing research suggests variability in nurses’ fall risk assessments, but the reasons for this variation and its appropriateness remain unclear. Objective: This study aimed to investigate how nurses judge fall risk, and how cognitive biases and contextual factors are associated with their judgements. Methods: Using purposive sampling, 335 nurses from six hospitals in western Japan participated in an online survey. The participants rated the likelihood of falls in 18 patient scenarios and completed measures of cognitive bias such as base-rate neglect, belief bias, and availability bias. A linear mixed-effects regression tree was used to identify factors related to their judgements, and a linear mixed-effects regression model examined associations between judgement variability, cognitive biases, and clinical speciality. Results: Nurses’ fall risk assessments were primarily determined by whether patients called for assistance, followed by the use of sleeping pills, the presence of a tube or drain, and patient mobility status. Judgement variability was linked to nurses’ gender, education, clinical context/speciality, and susceptibility to availability bias. Conclusion: Variability in clinical judgement may be justified when reflecting personalised, context-specific care. However, inconsistencies arising from cognitive biases are problematic. Healthcare organisations should offer targeted training to enhance contextual expertise and reduce the influence of cognitive biases on fall risk assessments. Study registration: Not registered.http://www.sciencedirect.com/science/article/pii/S2666142X25000633NursesFallsRisksJudgementCognitive biasClinical speciality
spellingShingle Miyuki Takase
Naomi Kisanuki
Yoko Sato
Kazue Mitsunaka
Masako Yamamoto
Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional study
International Journal of Nursing Studies Advances
Nurses
Falls
Risks
Judgement
Cognitive bias
Clinical speciality
title Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional study
title_full Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional study
title_fullStr Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional study
title_full_unstemmed Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional study
title_short Cognitive biases and contextual factors explaining variability in nurses’ fall risk judgements: a multi-centre cross-sectional study
title_sort cognitive biases and contextual factors explaining variability in nurses fall risk judgements a multi centre cross sectional study
topic Nurses
Falls
Risks
Judgement
Cognitive bias
Clinical speciality
url http://www.sciencedirect.com/science/article/pii/S2666142X25000633
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