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. 2022 Sep 27;12:16127. doi: 10.1038/s41598-022-20543-7

Table 2.

Interaction between RDW, MCV and anemia associated with transfusion risk.

Subgroup	Anemia (OR 95% CI)			P for interaction
Subgroup	None	Mild	Moderate/severe	P for interaction
MCV				0.008
80–100 normocytosis	1.0 (ref.)	3.25 (2.99, 3.53)	12.75 (11.88, 13.68)
< 80 microcytosis	0.99 (0.79, 1.24)	2.13 (1.79, 2.53)	11.23 (10.30, 12.25)
> 100 macrocytosis	1.85 (1.3, 2.63)	4.62 (3.27, 6.52)	16.29 (12.89, 20.6)
RDW				0.002
≤ 15.7	1.0 (ref.)	3.04 (2.8, 3.3)	10.69 (9.92, 11.51)
> 15.7	1.88 (1.51, 2.33)	3.46 ((2.96, 4.05)	15.17 (14.04, 16.39)