. 2020 Oct 6;10:16623. doi: 10.1038/s41598-020-73658-0

Table 2.

Comparisons of areas in intracranial veins in two positions.

Vessels	Side	Posture	N	Area (mm²)	Change ratio (%)	95% CI of difference (mm²)	Adjusted P value^c	Intrarater reliability/interrater reliability
Cortical vein	Right	Supine	20	9.16 ± 2.67	− 4.99	0.08 to 0.80	0.133	0.876/0.825
	Right	Upright	20	8.72 ± 2.76	− 4.99	0.08 to 0.80	0.133	0.887/0.853
	Left	Supine	20	9.27 ± 3.14	− 3.12	− 0.23 to 0.82	1.0	0.932/0.953
	Left	Upright	20	8.97 ± 3.45	− 3.12	− 0.23 to 0.82	1.0	0.980/0.976
Precentral cerebellar vein		Supine	20	3.63 ± 1.05	+ 7.18	− 0.47 to 0.03	0.567	0.863/0.862
Precentral cerebellar vein		Upright	20	3.84 ± 1.09	+ 7.18	− 0.47 to 0.03	0.567	0.853/0.843
Superficial middle cerebral vein	Right	Supine	20	6.16 ± 1.78	+ 3.43	− 0.47 to 0.33	1.0	0.817/0.806
	Right	Upright	20	6.22 ± 1.59	+ 3.43	− 0.47 to 0.33	1.0	0.885/0.903
	Left	Supine	20	6.71 ± 1.98	+ 4.69	− 0.65 to 0.16	1.0	0.888/0.896
	Left	Upright	20	6.95 ± 2.22	+ 4.69	− 0.65 to 0.16	1.0	0.878/0.841
Internal cerebral vein	Right	Supine	20	4.64 ± 1.13	+ 6.33	− 0.45 to 0.01	0.441	0.900/0.882
	Right	Upright	20	4.86 ± 1.01	+ 6.33	− 0.45 to 0.01	0.441	0.874/0.882
	Left	Supine	20	4.47 ± 1.23	+ 3.91	− 0.42 to 0.27	1.0	0.902/0.948
	Left	Upright	20	4.54 ± 1.14	+ 3.91	− 0.42 to 0.27	1.0	0.893/0.909

^aThe area is presented as the mean ± standard deviation.

^bCI: confidence interval.

^cAll P values are adjusted for multiple comparisons.