Ambulance response times and 30-day mortality : a Copenhagen (Denmark) registry study
Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved..
BACKGROUND AND IMPORTANCE: Ensuring prompt ambulance responses is complicated and costly. It is a general conception that short response times save lives, but the actual knowledge is limited.
OBJECTIVE: To examine the association between the response times of ambulances with lights and sirens and 30-day mortality.
DESIGN: A registry-based cohort study using data collected from 2014-2018.
SETTINGS AND PARTICIPANTS: This study included 182 895 individuals who, during 2014-2018, were dispatched 266 265 ambulances in the Capital Region of Denmark.
OUTCOME MEASURES AND ANALYSIS: The primary outcome was 30-day mortality. Subgroup analyses were performed on out-of-hospital cardiac arrests, ambulance response priority subtypes, and caller-reported symptoms of chest pain, dyspnoea, unconsciousness, and traffic accidents. The relation between variables and 30-day mortality was examined with logistic regression.
RESULTS: Unadjusted, short response times were associated with higher 30-day mortality rates across unadjusted response time quartiles (0-6.39 min: 9%; 6.40-8.60 min: 7.5%, 8.61-11.80 min: 6.6%, >11.80 min: 5.5%). This inverse relationship was consistent across subgroups, including chest pain, dyspnoea, unconsciousness, and response priority subtypes. For traffic accidents, no significant results were found. In the case of out-of-hospital cardiac arrests, longer response times of up to 10 min correlated with increased 30-day mortality rates (0-6.39 min: 84.1%; 6.40-8.60 min: 86.7%, 8.61-11.8 min: 87.7%, >11.80 min: 85.5%). Multivariable-adjusted logistic regression analysis showed that age, sex, Charlson comorbidity score, and call-related symptoms were associated with 30-day mortality, but response time was not (OR: 1.00 (95% CI [0.99-1.00])).
CONCLUSION: Longer ambulance response times were not associated with increased mortality, except for out-of-hospital cardiac arrests.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 2023 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:31 |
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| Enthalten in: |
European journal of emergency medicine : official journal of the European Society for Emergency Medicine - 31(2023), 1 vom: 01. Feb., Seite 59-67 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Mills, Alexander Andrew Matthew [VerfasserIn] |
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| Anmerkungen: |
Date Completed 21.12.2023 Date Revised 21.12.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1097/MEJ.0000000000001094 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 100 | 1 | |a Mills, Alexander Andrew Matthew |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Ambulance response times and 30-day mortality |b a Copenhagen (Denmark) registry study |
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| 500 | |a Date Revised 21.12.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved. | ||
| 520 | |a BACKGROUND AND IMPORTANCE: Ensuring prompt ambulance responses is complicated and costly. It is a general conception that short response times save lives, but the actual knowledge is limited | ||
| 520 | |a OBJECTIVE: To examine the association between the response times of ambulances with lights and sirens and 30-day mortality | ||
| 520 | |a DESIGN: A registry-based cohort study using data collected from 2014-2018 | ||
| 520 | |a SETTINGS AND PARTICIPANTS: This study included 182 895 individuals who, during 2014-2018, were dispatched 266 265 ambulances in the Capital Region of Denmark | ||
| 520 | |a OUTCOME MEASURES AND ANALYSIS: The primary outcome was 30-day mortality. Subgroup analyses were performed on out-of-hospital cardiac arrests, ambulance response priority subtypes, and caller-reported symptoms of chest pain, dyspnoea, unconsciousness, and traffic accidents. The relation between variables and 30-day mortality was examined with logistic regression | ||
| 520 | |a RESULTS: Unadjusted, short response times were associated with higher 30-day mortality rates across unadjusted response time quartiles (0-6.39 min: 9%; 6.40-8.60 min: 7.5%, 8.61-11.80 min: 6.6%, >11.80 min: 5.5%). This inverse relationship was consistent across subgroups, including chest pain, dyspnoea, unconsciousness, and response priority subtypes. For traffic accidents, no significant results were found. In the case of out-of-hospital cardiac arrests, longer response times of up to 10 min correlated with increased 30-day mortality rates (0-6.39 min: 84.1%; 6.40-8.60 min: 86.7%, 8.61-11.8 min: 87.7%, >11.80 min: 85.5%). Multivariable-adjusted logistic regression analysis showed that age, sex, Charlson comorbidity score, and call-related symptoms were associated with 30-day mortality, but response time was not (OR: 1.00 (95% CI [0.99-1.00])) | ||
| 520 | |a CONCLUSION: Longer ambulance response times were not associated with increased mortality, except for out-of-hospital cardiac arrests | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Mills, Elisabeth Helen Anna |e verfasserin |4 aut | |
| 700 | 1 | |a Blomberg, Stig Nikolaj Fasmer |e verfasserin |4 aut | |
| 700 | 1 | |a Christensen, Helle Collatz |e verfasserin |4 aut | |
| 700 | 1 | |a Møller, Amalie Lykkemark |e verfasserin |4 aut | |
| 700 | 1 | |a Gislason, Gunnar |e verfasserin |4 aut | |
| 700 | 1 | |a Køber, Lars |e verfasserin |4 aut | |
| 700 | 1 | |a Kragholm, Kristian Hay |e verfasserin |4 aut | |
| 700 | 1 | |a Lippert, Freddy |e verfasserin |4 aut | |
| 700 | 1 | |a Folke, Frederik |e verfasserin |4 aut | |
| 700 | 1 | |a Andersen, Mikkel Porsborg |e verfasserin |4 aut | |
| 700 | 1 | |a Torp-Pedersen, Christian |e verfasserin |4 aut | |
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