Early and delayed assessments of quantitative gait measures to improve the tap test as a predictor of shunt effectiveness in idiopathic normal pressure hydrocephalus

Table 1 Clinical summary of patients

Contents	Early assessment	Delayed assessment
Number of patients	61	51
Age^a	76.9 ± 6.0	76.6 ± 5.5
Male preponderance^b	73.8	70.6
Gait/cognition/urination^b	100/80.3/73.8	100/82.3/76.4
Onset of gait disturbance <1 year/improved at 1 year	32/24	26/20
MRI of DESH/incomplete DESH/non-DESH^b	55.7/23.0/21.3	60.8/17.6/21.6
Gait improvement on tap test^b	91.8	96.1
Number of VP shunt/LP shunt	44/17	39/12
Improvement of gait at 3 months^b	73.8	76.5%

Patients with early assessment on day 1 after CSF removal and delayed assessment on day 4 were subjected in study. Patients whom support was necessary for assessment of gait were not included in this study. The clinical characteristics were comparable among the two groups
DESH disproportionately enlarged subarachnoid-space by MRI, VP ventriculoperitoneal, LP lumboperitoneal
^a Years: mean ± standard deviation
^b Percentages

ISSN: 2045-8118