Intra-observer variability in APACHE II scoring

K. Polderman, H. Christiaans, J. Wester, J. Spijkstra, A. Girbes

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Although the APACHE II score is the most widely used scoring system in intensive care units worldwide, its reliability and variability have not been extensively studied. Differences in case-mix may complicate comparison and interpretation of results. We hypothesised that a degree of variability might be inherent to use of the APACHE II scoring system, and decided to assess intra-observer variability in APACHE II scoring as a potential indicator of inherent score variability. APACHE II scores were assessed twice from the charts of 11 patients by 14 physicians, with a time interval of 4 (range 3.5-4.5) months between the two assessments. Intra-observer was found to be approximately 15%. These findings are in agreement with previous observations regarding inter-observer variability in APACHE II scoring, and strongly suggest that there is an inherent score variability of about 15%.

Original languageEnglish
Pages (from-to)1550-1552
Number of pages3
JournalIntensive Care Medicine
Volume27
Issue number9
DOIs
Publication statusPublished - 22 Sep 2001

Cite this

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Intra-observer variability in APACHE II scoring. / Polderman, K.; Christiaans, H.; Wester, J.; Spijkstra, J.; Girbes, A.

In: Intensive Care Medicine, Vol. 27, No. 9, 22.09.2001, p. 1550-1552.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Intra-observer variability in APACHE II scoring

AU - Polderman, K.

AU - Christiaans, H.

AU - Wester, J.

AU - Spijkstra, J.

AU - Girbes, A.

PY - 2001/9/22

Y1 - 2001/9/22

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AB - Although the APACHE II score is the most widely used scoring system in intensive care units worldwide, its reliability and variability have not been extensively studied. Differences in case-mix may complicate comparison and interpretation of results. We hypothesised that a degree of variability might be inherent to use of the APACHE II scoring system, and decided to assess intra-observer variability in APACHE II scoring as a potential indicator of inherent score variability. APACHE II scores were assessed twice from the charts of 11 patients by 14 physicians, with a time interval of 4 (range 3.5-4.5) months between the two assessments. Intra-observer was found to be approximately 15%. These findings are in agreement with previous observations regarding inter-observer variability in APACHE II scoring, and strongly suggest that there is an inherent score variability of about 15%.

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KW - Inherent score variability

KW - Intra-observer variability

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