Premium
Therapeutic intervention scoring system (TISS) — a method for measuring workload and calculating costs in the ICU
Author(s) -
Mälstam J.,
Lind L.
Publication year - 1992
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/j.1399-6576.1992.tb03559.x
Subject(s) - workload , medicine , intensive care unit , emergency medicine , intensive care , critically ill , intensive care medicine , computer science , operating system
The Therapeutic Intervention Scoring System (TISS) is an easily applicable method for measurement of workload in the intensive care unit (ICU). In the present study a modified TISS‐scoring (mTISS) was performed daily during 1988–1989 on 2693 patients in a general ICU. Of these, 900 could be classified as ‘true’ ICU‐patients (ICU‐stay ≥ 24 h or TISS ≥ 20 points), whereas the rest were postoperative. In ICU‐patients the average length of stay was 4.5 ± 8.9 days and the average workload 114 ± 218 mTISS‐points. The workload was not significantly related to age or type of admission (scheduled vs unscheduled). Hospital non‐survivors (13.6%) showed a significantly increased mean total mTISS‐score (239 ± 364, P <0.001). Critically ill (TISS Class IV) patients (14% of the sample), with an average workload of 437 ± 401 mTISS points, consumed 53% of the total resources. Patients categorized (ICD‐9) to respiratory and infectious diseases showed the greatest average workload (207 ± 315 and 208 ± 355 mTISS‐points, respectively). A workload‐index was also developed relating the actual workload to the ICU personnel. The cost of each mTISS‐point was calculated. In conclusion, the present study showed that mTISS is a valuable tool when evaluating resource utilization in the ICU. Together with the proposed workload‐index and calculation of costs, mTISS could be used for ICU management control.