Risk Factors for In-Hospital Mortality for Surgical Patient Readmitted to ICU

 

Patient selection: surgical patients admitted postoperatively

 

Most readmissions occurred within the first 5 weeks after discharge (see Figure 1).

 

A patient who is readmitted has a significant risk for in-hospital mortality.

 

Risk factors for in-hospital mortality:

(1) higher SAPS II score on initial admission to the ICU

(2) chronic renal failure

(3) initial hospital admission after gastrointestinal surgery

Risk Factor	Odds Ratio
SAPS II	1.02 per point
chronic renal failure	2.4
history of gastrointestinal surgery	2.6

 

where:

• The maximum SAPS II score is 160.

• A SAPS II score of 45 would have an odds ratio of (1.02)^45 = 2.4.

• The SAPS II score for patients readmitted to the ICU was 37.1 +/- 16.4 (Table 1).

 

Additional risk factors:

(1) presence of cancer