Table 2.

Rates of PSI among hospitalized patients with and without CKDa

PSIPSI DescriptionNo. of EventsRate in CKDbRate in Non-CKDbaIRR (95% CI)cP
Complications of surgical care
1    complications of anesthesia580.120.081.60 (1.07 to 2.37)0.020
8    postoperative hip fracture170.110.024.89 (2.79 to 8.57)<0.001
9    postoperative hemorrhage or hematoma1700.300.260.96 (0.72 to 1.29)0.800
10    postoperative physiological/metabolic derangement2390.960.204.00 (3.18 to 5.02)<0.001
11    postoperative respiratory failure10864.011.971.37 (1.19 to 1.57)<0.001
12    postoperative PE or DVT6451.230.961.04 (0.88 to 1.22)0.700
13    postoperative sepsis4072.471.331.39 (1.14 to 1.71)0.001
14    postoperative wound dehiscence800.900.591.12 (0.74 to 1.70)0.600
Complications of any acute hospitalization
2    death in low-mortality DRG1070.470.181.53 (1.14 to 2.05)0.005
3    decubitus ulcer11761.641.200.95 (0.84 to 1.08)0.500
4    failure to rescue149111.011.20.95 (0.85 to 1.05)0.300
7    infection as a result of medical care3590.340.162.33 (1.92 to 2.82)<0.001
  • a DRG, diagnosis-related group; DVT, deep vein thrombosis; PE, pulmonary embolism.

  • b Events per 100 hospitalizations.

  • c Adjusted for age, gender, race, diabetes, CVD, and cancer.