Table 3.

Results of multiple linear regression models predicting the effect of sex, strain, and liver iron or diferric transferrin levels on Hamp1 mRNA levels in 14 inbred mouse strains on the control diet in study 1

	Control Hamp1 mRNA Level
	B	SE	β	P
Analysis including liver iron levels
Model 1
Sex	0.07	0.02	0.35	0.001*
Strain	−0.005	0.003	−0.18	0.07
Model 2
Sex	0.07	0.02	0.34	0.001*
Strain	−0.004	0.003	−0.18	0.08
Liver iron levels	2.77 × 10−5	7.20 × 10−5	0.04	0.70
Analysis including diferric transferrin levels
Model 1
Sex	0.07	0.02	0.37	0.0003*
Strain	−0.005	0.002	−0.18	0.07
Model 2
Sex	0.07	0.02	0.37	0.0005*
Strain	−0.005	0.002	−0.18	0.07
Diferric transferrin	0.0001	0.001	0.02	0.86

Liver iron levels measured in micrograms per gram and diferric transferrin levels measured in percent were used.

^*P ≤ 0.001.