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Table 5 Results of the statistical analysis on the outcome measures stride length, cadence and total time considering as predictors both the instrumental gait analysis parameters and the scores of clinical scales (model defined in Eq. 2)

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

 TUG18 mW
 Valuep-value Valuep-value
Stride length [cm](Intercept)135.40.000(Intercept)164.30.000
T72 h−1.90.064T72 h2.90.071
v-iNPH vs p-iNPH−2.00.414v-iNPH vs p-iNPH−3.10.307
double support duration−1.60.000 ***double support duration−1.90.000 ***
n. turning steps−2.90.000 ***PCI−0.10.035 *
Tinetti Gait1.20.004 **Tinetti Gait2.80.000 ***
Gait Status Scale−1.00.010 **Gait Status Scale−2.00.004 *
   Tinetti Balance−1.60.043 *
Cadence [strides/min](Intercept)59.50.000(Intercept)63.40.000
T72 h3.00.000***T72 h1.60.070
v-iNPH vs p-iNPH−0.90.670v-iNPH vs p-iNPH0.10.944
double support duration−0.40.000 ***double support duration−0.40.000 ***
n. turning steps0.70.002 **PCI0.10.001 ***
Gait Status Scale0.60.004 **   
Total time [s](Intercept)2.50.549(Intercept)13.90.032
T72 h−1.60.156T72 h−1.70.446
v-iNPH vs p-iNPH0.30.757v-iNPH vs p-iNPH1.20.482
double support duration0.70.000 ***double support duration0.80.000 ***
PCI0.030.000 ***PCI0.20.000 ***
Sit-down duration0.60.000 ***Tinetti Gait−1.40.001 ***
Tinetti Balance−0.90.000 ***   
  1. T72 h post 72 h the CSF tap test;
  2. v-iNPH vs p-iNPH pure iNPH group vs iNPH with vascular encephalopathy comorbidity group
  3. PCI phase coordination index
  4. Significance codes: ‘***’ p < 0.001, ‘**’ p < 0.01, ‘*’ p < 0.05