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Table 1 Clinical summary of patients

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

Contents Early assessment Delayed assessment
Number of patients 61 51
Agea 76.9 ± 6.0 76.6 ± 5.5
Male preponderanceb 73.8 70.6
Gait/cognition/urinationb 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-DESHb 55.7/23.0/21.3 60.8/17.6/21.6
Gait improvement on tap testb 91.8 96.1
Number of VP shunt/LP shunt 44/17 39/12
Improvement of gait at 3 monthsb 73.8 76.5%
  1. 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
  2. DESH disproportionately enlarged subarachnoid-space by MRI, VP ventriculoperitoneal, LP lumboperitoneal
  3. a Years: mean ± standard deviation
  4. b Percentages