Table 6. Association between RBC... | American Society of Hematology

Table 6.

Association between RBC transfusion on the day of grade 2A bleeding and grade ≥2A bleeding the following day, within hematocrit subgroups, taking into account within-person correlation

Hematocrit category	Days with hematocrit data on day of grade 2A bleeding	Days with RBC transfusion on the day of grade 2A bleeding		Next day bleeding grade ≥2A after days with RBC transfusion		Days without RBC transfusion on the day of grade 2A bleeding		Next day bleeding grade ≥2A after days without RBC transfusion		OR*	95% CI	P
Hematocrit category	Days with hematocrit data on day of grade 2A bleeding	%	No.	%	No.	%	No.	%	No.	OR*	95% CI	P
All hematocrit values	2181†	455	21	276	61	1726	79	959	56	1.20	0.98-1.47	.08
≤25	524	296	56	182	61	228	44	144	63	1.02	0.74-1.41	.91
25-29	1049	123	12	70	57	926	88	513	55	1.03	0.71-1.49	.88
>29	585	30	5	19	63	555	95	296	53	1.79	0.81-3.96	.15

Hematocrit category	Days with hematocrit data on day of grade 2A bleeding	Days with RBC transfusion on the day of grade 2A bleeding		Next day bleeding grade ≥2A after days with RBC transfusion		Days without RBC transfusion on the day of grade 2A bleeding		Next day bleeding grade ≥2A after days without RBC transfusion		OR*	95% CI	P
Hematocrit category	Days with hematocrit data on day of grade 2A bleeding	%	No.	%	No.	%	No.	%	No.	OR*	95% CI	P
All hematocrit values	2181†	455	21	276	61	1726	79	959	56	1.20	0.98-1.47	.08
≤25	524	296	56	182	61	228	44	144	63	1.02	0.74-1.41	.91
25-29	1049	123	12	70	57	926	88	513	55	1.03	0.71-1.49	.88
>29	585	30	5	19	63	555	95	296	53	1.79	0.81-3.96	.15

The interaction between the three hematocrit categories and RBC transfusion was not significant (P = .60).

Comparing RBC transfusion to no RBC transfusion.

†

Twenty-three days had missing hematocrit and are not included in the rows below.

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