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. Author manuscript; available in PMC: 2012 Jun 27.
Published in final edited form as: Circ Cardiovasc Qual Outcomes. 2010 May 20;3(4):337–346. doi: 10.1161/CIRCOUTCOMES.110.957050

Table 3.

In-hospital bleeding by hospital-acquired anemia status

Variable All HAA (n=1321) No HAA (n=1588) Mild HAA (n=973) Moderate HAA (n=292) Severe HAA (n=56) P value

In hospital bleeding 178 (13.5%) 71 (4.5%) 100 (10.3%) 49 (16.8%) 29 (51.8%) <0.001

TIMI Bleeding (n, % of bleeding episodes) <0.001
 TIMI major 26 (2.0%) 3 (0.2%) 5 (0.5%) 8 (2.7%) 13 (23.2%)
 TIMI minor 73 (5.5%) 14 (0.9%) 40 (0.4%) 23 (7.9%) 10 (17.9%)
 TIMI minimal 79 (6.0%) 54 (3.4%) 55 (5.7%) 18 (6.2%) 6 (10.7%)

Bleeding location (n, % of bleeding episodes attributed to site) <0.001
 Catheterization site 105 (59.0%) 55 (77.5%) 67 (67.0%) 29 (59.2%) 9 (31.0%)
 Gastrointestinal 22 (12.4%) 2 (2.8%) 9 (9.0%) 4 (8.2%) 9 (31.0%)
 Retroperitoneal 16 (9.0%) 0 (0.0%) 3 (3.0%) 8 (16.3%) 5 (17.2%)
 Other 35 (19.7%) 14 (19.7%) 21 (21.0%) 8 (16.3%) 6 (20.7%)

PRBC transfusion (% yes) 69 (5.2%) 0 9 (0.9%) 19 (6.5%) 41 (73.2%) <0.001

PRBC units transfused in pts receiving transfusion (mean units±SD) 2.4±1.4 n/a 2.1 ± 1.0 1.8 ± 0.4 2.8 ± 1.8 0.07

p-values presented are for comparison of no HAA, mild HAA, Moderate HAA and Severe HAA.

PRBC = packed red blood cell, TIMI = Thrombolysis in Myocardial Infarction