Fig 1.
Flowchart of admissions included for the quality indicators for in-hospital mortality, readmission to the ICU and ICU length of stay.
Table 1.
Values for the crude outcomes and for the quality indicators standardized mortality ratio (SMR); standardized readmission ratio (SRR) and standardized ICU length of stay ratio (SLOSR).
Overall values are shown with minimum and maximum ranges over the ICUs.
Fig 2.
Pairs of quality indicators plotted against each other on ICU level.
Fig 2A: standardized in-hospital mortality ratio (SMR) against standardized ICU readmission within 48 hours ratio (SRR). Fig 2B: standardized length of stay ratio (SLOSR) against SMR. Fig 2C: SLOSR against SRR.
Fig 3.
Quality indicators SMR and SLOSR plotted against each other on ICU level for patients grouped based on severity of illness defined using the probability of mortality.
Fig 3A: probability of mortality smaller than 0.3. Fig 3B: probability of mortality larger or equal to 0.3 and smaller than 0.7. Fig 3C: probability of mortality larger or equal to 0.7.
Table 2.
Pearson’s correlation coefficients with corresponding p-values for the pairs of quality indicators standardized mortality ratio (SMR); standardized readmission ratio (SRR) and standardized ICU length of stay ratio (SLOSR).