Table 2.

Effects of shunt surgery on the improvement of clinical functions of idiopathic normal pressure hydrocephalus

	Presurgery	Postsurgery	P
mRS	2 (2-3)	1 (0-2)	<0.0001
iNPHGS	6 (5-10)	2.5 (1-4)	<0.0001
iNPHGS (Gait)	2 (2-3)	1 (0-2)	<0.0001
iNPHGS (Cont)	2 (1-3)	0 (0-0)	<0.0001
iNPHGS (Cog)	2 (1-3)	1 (0-2)	<0.0001
MMSE	20 (17-26)	26 (24-29.75)	<0.0001
TUG (n=58)	19.7 (14.6-32.3)	15.4 (11.9-22.2)	<0.000001

Data are shown by the median (interquartile range). mRS – Modified Rankin Scale; iNPHGS – Japanese Grading Scale for iNPH scoring 0 (best) to 12 (worst); iNPHGS (Gait) – Gait of iNPHGS scoring 0 (best) to 4 (worst); iNPHGS (Cont) – Urinary continency of iNPHGS scoring 0 (best) to 4 (worst); iNPHGS (Cog) – Cognitive function of iNPHGS scoring 0 (best) to 4 (worst); MMSE – Mini-Mental State Examination; TUG – Three-meter timed up and Go test (sec)