Table 3.

Rates of additional PSI among hospitalized patients with and without CKD^a

PSI	No. of Events	Rate in CKDb	Rate in Non-CKDb	aIRR (95% CI)c	P
Technical difficulty with procedure	1535	0.51	0.66	0.91 (0.80 to 1.03)	0.100
Physiological derangement, medical and surgical admissions	29,628	15.70	10.80	1.36 (1.30 to 1.41)	<0.001
Aspiration pneumonia	376	0.77	0.57	0.91 (0.74 to 1.11)	0.400
CABG after PTCA	32	0.69	0.64	0.83 (0.45 to 1.50)	0.500
Postoperative in-hospital MI	665	2.14	0.83	1.18 (1.05 to 1.34)	0.007
Postoperative cardiogenic iatrogenic complications	1505	3.31	2.10	1.11 (0.99 to 1.25)	0.060

^aCABG, coronary artery bypass grafting; PTCA, percutaneous coronary angioplasty; MI, myocardial infarction.

^bEvents per 100 hospitalizations.

^cAdjusted for age, gender, race, diabetes, CVD, and cancer.