TABLE III.

Unadjusted Rates of 30-Day Postoperative Complications: Comparison of Non-Anemic and Anemic Groups^*

Complication	No. (%) of Total Cohort (N = 34,805)	No. (%) with Normal HCT (N = 12,336)	No. (%) with Low HCT (N = 22,469)	P Value†
Death	1,432 (4.1)	313 (2.5)	1,119 (5.0)	<0.001
Readmission	2,989 (8.6)	829 (6.7)	2,160 (9.6)	<0.001
MI	570 (1.6)	139 (1.1)	431 (1.9)	<0.001
CVA	246 (0.7)	83 (0.7)	163 (0.7)	0.6

^*HCT = hematocrit, MI = myocardial infarction, and CVA = cerebrovascular accident. The values are given as the number, with the percentage in parentheses. The percentages in the Complication column are of the total cohort (n = 34,805).

^†Bold indicates a significant difference between the Normal HCT and Low HCT groups.