Non-conveyance in the ambulance service: a population-based cohort study in Stockholm, Sweden

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Lederman, JakobKarolinska Institutet (author)

Non-conveyance in the ambulance service : a population-based cohort study in Stockholm, Sweden

Article/chapterEnglish2020

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2020-07-14
BMJ Publishing Group Ltd,2020
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LIBRIS-ID:oai:DiVA.org:lnu-102706
https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-102706URI
https://doi.org/10.1136/bmjopen-2019-036659DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:shh:diva-3784URI
http://kipublications.ki.se/Default.aspx?queryparsed=id:147862752URI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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OBJECTIVES: Non-conveyed patients represent a significant proportion of all patients cared for by ambulance services in the western world. However, scientific knowledge on non-conveyance is sparse. Therefore, the aim of this study was to describe the prevalence of non-conveyance, investigate associations and compare patients' characteristics, drug administration, initial problems and vital signs between non-conveyed and conveyed patients.DESIGN: A population-based retrospective cohort study.SETTING: The study setting area, Stockholm, Sweden, has a population of 2.3 million inhabitants, with seven emergency hospitals. Annually, approximately 210 000 assignments are performed by 73 ambulances. All ambulance assignments performed from 1 January to 31 December 2015 were included.RESULTS: In total, 23 603 ambulance assignments ended in non-conveyance-13.8% of all ambulance assignments performed in 2015. Compared with conveyed patients, non-conveyed patients were younger and more often female (median age 50.1 years for non-conveyed vs 61.7 years for conveyed; female=52 %, both p values <0.001). Approximately half of all ambulance assignments ending in non-conveyance were initially prioritised and dispatched as the highest priority. Non-conveyed patients were more often assessed by ambulance clinicians as presenting non-specific symptoms or symptoms related to psychiatric problems. Low blood glucose levels were highly associated with non-conveyance (adjusted OR (AOR): 15; 95 % CI 11.18 to 20.13), although non-conveyed patients presented abnormal vital signs across all categories of vital signs. Moreover, drugs were more often administered to younger non-conveyed patients. Older patients were more often conveyed and administered drugs once conveyed (AOR: 1.29; 95 % CI 1.07 to 1.56).CONCLUSIONS: This study shows that non-conveyed patients represent a non-negligible proportion of all patients in contact with ambulance services. In general, most cases of non-conveyance occur at the highest dispatch level, to a large extent involve younger patients, and features problems assessed by ambulance clinicians as non-specific or related to psychiatric symptoms.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap Hälso- och sjukvårdsorganisation, hälsopolitik och hälsoekonomi hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences Health Care Service and Management, Health Policy and Services and Health Economy hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Allmänmedicin hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine General Practice hsv//eng
accident & emergency medicine
epidemiology
statistics & research methods
Hälsovetenskap
Health and Caring Sciences

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Lindström, VeronicaKarolinska Institutet (author)
Elmqvist, Carina,1964-Linnéuniversitetet,Institutionen för hälso- och vårdvetenskap (HV)(Swepub:lnu)celivosa (author)
Löfvenmark, CarolineSophiahemmet Högskola,Sophiahemmet University College, Sweden(Swepub:shh)carolinelow (author)
Djärv, ThereseKarolinska Institutet (author)
Karolinska InstitutetInstitutionen för hälso- och vårdvetenskap (HV) (creator_code:org_t)

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