The Three days Recalibrated Icu Outcome Score (TRIOS):
 (Intensive care medicine 2001; In Press.. Published online: Intensive Care Med, DOI 10.1007/s001340100961)
Télécharger au format excel
  Parameter estimate Odds ratio
95% CI		 P value
(Wald)		 Odds ratio
95% CI
(Bootstrap)
Intercept -4.44   0.0001  
Transfer from ward (0/1) 0.5543 1.74 [1.25-2.42] 0.001 [1.253-2.453]
LOD at admisson 0.1536 1.16 [1.085-1.253] <0.0001 [1.093-1.276]
SAPS II admission 0.0388 1.04 [1.027-1.053] <0.0001 [1.026-1.053]
Chronic illness (0/1) 0.8507 2.34 [1.677-3.269] <0.0001 [1.622-3.296]
SAPS2-SAPS3 alteration 0.4161 1.516 [1.04-2.22] 0.032 [1.055-2.373]
LOD2-LOD3 alteration 0.6940 2.00 [1.29-3.11] 0.0002 [1.292-3.019]
Results of the logistic regression (training cohort, n=893, 268 hospital deaths).

To compute de probability of hospital mortality:

  1. compute the logit:

    2. Logit= (-4.44) + 0.5543(Transfer)+0.1536(LOD)+0.0388(SAPS II)+ 0.8507(Chronic illness)+0.4161(SAPS2-SAPS3 alteration)+0.6940(LOD2-LOD3 alteration).

  2. calculate the probability of hospital mortality (P(death))

P(death)=(eLogit)/(1+eLogit) where e=2.7182818 (the base of the natural logarythm).

How to use the calculation file?:
  • Download trioscore.xls

    •
  • Open it.

  • Record admission data and physiological data the day of admission, Day2 and Day 3 on the 2 appropriate sheets in the Excel file.

    • Then , SAPS II, LOD and TRIOs score and expected probability will be automatically calculated and plotted on the sheet "trios" and "graph"
    The definitions used are those from the original SAPSII and LOD score.
    Chonic diseases are defined according to Knaus APACHEII definitions.Day 2 and day 3 corresponded to the second and the third calendar days.

    For more explanations: jf.timsit@outcomerea.org