Table 2:

Spinal MR imaging parameters and brain MRI findings from HCs and patients with SIH at initial, intermediate, and recovery stages

		Intraspinal CSF Volumes (mL)	Pituitary Volumes (cm³)
HCs (n = 32)		95.31 ± 15.48
SIH	Ini (n = 23)	72.31 ± 19.35	0.60 ± 0.20
	Int (n = 18)	81.15 ± 25.41	0.47 ± 0.15
	Rec (n = 18)	93.74 ± 20.33	0.36 ± 0.14
P value^{^a}	HCs vs SIH_Ini	<.001^{^b}
	HCs vs SIH_Int	<.05^{^b}
	HCs vs SIH_Rec	.731
P value^{^c}	SIH_Ini vs SIH_Int	<.001^{^b}	<.001^{^b}
	SIH_Ini vs SIH_Rec	<.001^{^b}	<.001^{^b}
	SIH_Int vs SIH_Rec	<.001^{^b}	.155

Note:—Ini indicates initial; Int, intermediate, Rec, recovery.
↵a Mann-Whitney U test.
↵b Significant.
↵c Paired t test.