Table 4.

Interaction effect of transfusion and fatigability on fatigue 7 days after hospital discharge

Interaction term	Coefficient	95% CI	P
Fatigue × transfusion, U
1	−0.22	−1.0 to 0.60	.60
2-3	−0.02	−0.60 to 0.64	.96
Fatigability × transfusion, U*
1	−0.95	−2.1 to 0.24	.12
2-3	−0.93	−2.3 to 0.52	.21

Scale range, 8 to 40. Model controls for: age, sex, race, Charlson Comorbidity Index, length of stay, and nadir Hb.

^*Model also controls for baseline (inpatient) fatigue level.