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Table 1 Baseline demographic, clinical and neurological characteristics of subjects and number of motor test acquisitions

From: The effects of cerebrospinal fluid tap-test on idiopathic normal pressure hydrocephalus: an inertial sensors based assessment

 Totalp-iNPHv-iNPH
Demographic
 Subjects765620
 Males (%)43 (57)31 (55)12 (60)
 Mean age at disease onset (st. Dev)72 (5.7)71 (6.2)73 (3.3)
 Mean age at evaluation (st. Dev)75 (4.7)74 (5.1)77 (3.0)
 Disease duration < 12 months21183
 Disease duration > 12 months553817
 BMI, [kg/m2] (st. Dev)27 (4.1)28 (3.9)25 (4.1)
Clinical profile
Symptoms at first evaluation
 1, subjects (%)6 (8)6 (11)0
 2, subjects (%)18 (24)13 (23)5 (25)
 3, subjects (%)52 (68)37 (66)15 (75)
 gait disorders, subjects (%)76 (100)56 (100)20 (100)
 urinary dysfunctions, subjects (%)63 (83)47 (84)16 (80)
 cognitive impairments, subjects (%)58 (76)39 (70)19 (95)
Number of falls in the last 6 months
 0, (%)17 (22)12 (21)5 (25)
 1, (%)15 (20)12 (21)3 (15)
  ≥ 2, (%)44 (58)32 (57)12 (60)
Mean ARWMC (st. Dev)7.2 (4.6)5.0 (2.7)13.7 (2.3)
Motor tests
 TUG total trials acquired585405180
 TUG discarded (incomplete acquisitions)31 (5%)22 (5%)9 (5%)
 18 mW total trials acquired405300135
 18 mW discarded (incomplete acquisitions)32 (8%)21 (7%)11 (8%)
  1. BMI Body mass index; ARWMC Age-Related White Matters Changes