TABLE 6.

Multiple conditional logistic regression estimates of IPS risk according to RBC and/or PLT transfusions received in the prior 7 days

	Separate model*		Combined model†
Predictor	OR (95% CI)	p value	OR (95% CI)	p value
RBC sum	1.22 (1.06–1.40)	0.006	1.04 (0.88–1.22)	0.669
PLT sum	1.35 (1.18–1.54)	<0.001	1.33 (1.44–1.55)	<0.001

^*Models adjusted for confounders and the sum of non-PLT, non-RBC transfusions from the prior 7 days.

^†Models included both RBC and PLT transfusions from the prior 7 days in addition to other confounders and sum of non-PLT, non-RBC transfusions from the prior 7 days.