Table 2:

The results for the GLM modeling of the interaction between the BOLD response as measured by the Z score and the physiologic variables^{^a}

Activation	Hb	MCV	%F	%S
Activation
Phys. variable (β)	0.173	0.013	0.018	−0.020
Phys. variable (P value)	.036^{^b}	.034^{^b}	.023^{^b}	.021^{^b}
Deactivation
Phys. variable (β)	0.246	0.013	0.022	−0.023
Phys. variable (P value)	.109	.268	.173	.169

Note:—Phys. indicates physiologic; Hb, hemoglobin; MCV, mean corpuscular volume; %F, level of fetal hemoglobin; %S, level of fetal hemoglobin S.
↵a The GLM was run individually for each of the variables in the headers, in each case the patient's age was used as a covariable in the model.
↵b Significant.