The SOAR stroke score predicts hospital length of stay in acute stroke: an external validation study

C S Kwok, A B Clark, S D Musgrave, J F Potter, G Dalton, D J Day, A George, A K Metcalf, J Ngeh, A Nicolson, P Owusu-Agyei, R Shekhar, K Walsh, E A Warburton, M O Bachmann, P K Myint, the Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group

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Abstract

AIMS: The objective of this study is to externally validate the SOAR stroke score (Stroke subtype, Oxfordshire Community Stroke Project Classification, Age and prestroke modified Rankin score) in predicting hospital length of stay (LOS) following an admission for acute stroke.

METHODS: We conducted a multi-centre observational study in eight National Health Service hospital trusts in the Anglia Stroke & Heart Clinical Network between September 2008 and April 2011. The usefulness of the SOAR stroke score in predicting hospital LOS in the acute settings was examined for all stroke and then stratified by discharge status (discharged alive or died during the admission).

RESULTS: A total of 3596 patients (mean age 77 years) with first-ever or recurrent stroke (92% ischaemic) were included. Increasing LOS was observed with increasing SOAR stroke score (p < 0.001 for both mean and median) and the SOAR stroke score of 0 had the shortest mean LOS (12 ± 20 days) while the SOAR stroke score of 6 had the longest mean LOS (26 ± 28 days). Among patients who were discharged alive, increasing SOAR stroke score had a significantly higher mean and median LOS (p < 0.001 for both mean and median) and the LOS peaked among patients with score value of 6 [mean (SD) 35 ± 31 days, median (IQR) 23 (14-48) days]. For patients who died as in-patient, there was no significant difference in mean or median LOS with increasing SOAR stroke score (p = 0.68 and p = 0.79, respectively).

CONCLUSION: This external validation study confirms the usefulness of the SOAR stroke score in predicting LOS in patients with acute stroke especially in those who are likely to survive to discharge. This provides a simple prognostic score useful for clinicians, patients and service providers.

Original languageEnglish
Pages (from-to)659-665
Number of pages7
JournalInternational Journal of Clinical Practice
Volume69
Issue number6
Early online date4 Feb 2015
DOIs
Publication statusPublished - Jun 2015

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Validation Studies
Length of Stay
Stroke
National Health Programs
Observational Studies

Keywords

  • SOAR stroke score
  • Hospital length of stay
  • acute stroke

Cite this

Kwok, C. S., Clark, A. B., Musgrave, S. D., Potter, J. F., Dalton, G., Day, D. J., ... the Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group (2015). The SOAR stroke score predicts hospital length of stay in acute stroke: an external validation study. International Journal of Clinical Practice, 69(6), 659-665. https://doi.org/10.1111/ijcp.12577

The SOAR stroke score predicts hospital length of stay in acute stroke : an external validation study. / Kwok, C S; Clark, A B; Musgrave, S D; Potter, J F; Dalton, G; Day, D J; George, A; Metcalf, A K; Ngeh, J; Nicolson, A; Owusu-Agyei, P; Shekhar, R; Walsh, K; Warburton, E A; Bachmann, M O; Myint, P K; the Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group.

In: International Journal of Clinical Practice, Vol. 69, No. 6, 06.2015, p. 659-665.

Research output: Contribution to journalArticle

Kwok, CS, Clark, AB, Musgrave, SD, Potter, JF, Dalton, G, Day, DJ, George, A, Metcalf, AK, Ngeh, J, Nicolson, A, Owusu-Agyei, P, Shekhar, R, Walsh, K, Warburton, EA, Bachmann, MO, Myint, PK & the Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group 2015, 'The SOAR stroke score predicts hospital length of stay in acute stroke: an external validation study', International Journal of Clinical Practice, vol. 69, no. 6, pp. 659-665. https://doi.org/10.1111/ijcp.12577
Kwok, C S ; Clark, A B ; Musgrave, S D ; Potter, J F ; Dalton, G ; Day, D J ; George, A ; Metcalf, A K ; Ngeh, J ; Nicolson, A ; Owusu-Agyei, P ; Shekhar, R ; Walsh, K ; Warburton, E A ; Bachmann, M O ; Myint, P K ; the Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group. / The SOAR stroke score predicts hospital length of stay in acute stroke : an external validation study. In: International Journal of Clinical Practice. 2015 ; Vol. 69, No. 6. pp. 659-665.
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abstract = "AIMS: The objective of this study is to externally validate the SOAR stroke score (Stroke subtype, Oxfordshire Community Stroke Project Classification, Age and prestroke modified Rankin score) in predicting hospital length of stay (LOS) following an admission for acute stroke.METHODS: We conducted a multi-centre observational study in eight National Health Service hospital trusts in the Anglia Stroke & Heart Clinical Network between September 2008 and April 2011. The usefulness of the SOAR stroke score in predicting hospital LOS in the acute settings was examined for all stroke and then stratified by discharge status (discharged alive or died during the admission).RESULTS: A total of 3596 patients (mean age 77 years) with first-ever or recurrent stroke (92{\%} ischaemic) were included. Increasing LOS was observed with increasing SOAR stroke score (p < 0.001 for both mean and median) and the SOAR stroke score of 0 had the shortest mean LOS (12 ± 20 days) while the SOAR stroke score of 6 had the longest mean LOS (26 ± 28 days). Among patients who were discharged alive, increasing SOAR stroke score had a significantly higher mean and median LOS (p < 0.001 for both mean and median) and the LOS peaked among patients with score value of 6 [mean (SD) 35 ± 31 days, median (IQR) 23 (14-48) days]. For patients who died as in-patient, there was no significant difference in mean or median LOS with increasing SOAR stroke score (p = 0.68 and p = 0.79, respectively).CONCLUSION: This external validation study confirms the usefulness of the SOAR stroke score in predicting LOS in patients with acute stroke especially in those who are likely to survive to discharge. This provides a simple prognostic score useful for clinicians, patients and service providers.",
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T1 - The SOAR stroke score predicts hospital length of stay in acute stroke

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AU - Kwok, C S

AU - Clark, A B

AU - Musgrave, S D

AU - Potter, J F

AU - Dalton, G

AU - Day, D J

AU - George, A

AU - Metcalf, A K

AU - Ngeh, J

AU - Nicolson, A

AU - Owusu-Agyei, P

AU - Shekhar, R

AU - Walsh, K

AU - Warburton, E A

AU - Bachmann, M O

AU - Myint, P K

AU - the Anglia Stroke Clinical Network Evaluation Study (ASCNES) Group

N1 - © 2015 John Wiley & Sons Ltd. Funded by National Institute for Health Research (NIHR) Research for Patient Benefit Programme. Grant Number: PB-PG-1208-18240 National Health Service Improvement Program Cambridge NIHR Biomedical Research Grant

PY - 2015/6

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N2 - AIMS: The objective of this study is to externally validate the SOAR stroke score (Stroke subtype, Oxfordshire Community Stroke Project Classification, Age and prestroke modified Rankin score) in predicting hospital length of stay (LOS) following an admission for acute stroke.METHODS: We conducted a multi-centre observational study in eight National Health Service hospital trusts in the Anglia Stroke & Heart Clinical Network between September 2008 and April 2011. The usefulness of the SOAR stroke score in predicting hospital LOS in the acute settings was examined for all stroke and then stratified by discharge status (discharged alive or died during the admission).RESULTS: A total of 3596 patients (mean age 77 years) with first-ever or recurrent stroke (92% ischaemic) were included. Increasing LOS was observed with increasing SOAR stroke score (p < 0.001 for both mean and median) and the SOAR stroke score of 0 had the shortest mean LOS (12 ± 20 days) while the SOAR stroke score of 6 had the longest mean LOS (26 ± 28 days). Among patients who were discharged alive, increasing SOAR stroke score had a significantly higher mean and median LOS (p < 0.001 for both mean and median) and the LOS peaked among patients with score value of 6 [mean (SD) 35 ± 31 days, median (IQR) 23 (14-48) days]. For patients who died as in-patient, there was no significant difference in mean or median LOS with increasing SOAR stroke score (p = 0.68 and p = 0.79, respectively).CONCLUSION: This external validation study confirms the usefulness of the SOAR stroke score in predicting LOS in patients with acute stroke especially in those who are likely to survive to discharge. This provides a simple prognostic score useful for clinicians, patients and service providers.

AB - AIMS: The objective of this study is to externally validate the SOAR stroke score (Stroke subtype, Oxfordshire Community Stroke Project Classification, Age and prestroke modified Rankin score) in predicting hospital length of stay (LOS) following an admission for acute stroke.METHODS: We conducted a multi-centre observational study in eight National Health Service hospital trusts in the Anglia Stroke & Heart Clinical Network between September 2008 and April 2011. The usefulness of the SOAR stroke score in predicting hospital LOS in the acute settings was examined for all stroke and then stratified by discharge status (discharged alive or died during the admission).RESULTS: A total of 3596 patients (mean age 77 years) with first-ever or recurrent stroke (92% ischaemic) were included. Increasing LOS was observed with increasing SOAR stroke score (p < 0.001 for both mean and median) and the SOAR stroke score of 0 had the shortest mean LOS (12 ± 20 days) while the SOAR stroke score of 6 had the longest mean LOS (26 ± 28 days). Among patients who were discharged alive, increasing SOAR stroke score had a significantly higher mean and median LOS (p < 0.001 for both mean and median) and the LOS peaked among patients with score value of 6 [mean (SD) 35 ± 31 days, median (IQR) 23 (14-48) days]. For patients who died as in-patient, there was no significant difference in mean or median LOS with increasing SOAR stroke score (p = 0.68 and p = 0.79, respectively).CONCLUSION: This external validation study confirms the usefulness of the SOAR stroke score in predicting LOS in patients with acute stroke especially in those who are likely to survive to discharge. This provides a simple prognostic score useful for clinicians, patients and service providers.

KW - SOAR stroke score

KW - Hospital length of stay

KW - acute stroke

U2 - 10.1111/ijcp.12577

DO - 10.1111/ijcp.12577

M3 - Article

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VL - 69

SP - 659

EP - 665

JO - International Journal of Clinical Practice

JF - International Journal of Clinical Practice

SN - 1368-5031

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ER -