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Table 1 Statistical comparison of estimated parameters in pre- and post-stimulation measurements

From: Inhibitory effects of tibial nerve stimulation on bladder neurophysiology in rats

  Prestimulation saline (I) Prestimulation AA (II) Poststimulation AA (III)
Automatically calculated    
 Threshold afferent activity (µV) 0.21 ± 0.02 0.23 ± 0.04ф 0.19 ± 0.01*
 Maximum afferent activity (µV) 0.25 ± 0.04 0.41 ± 0.07ф 0.22 ± 0.04*
 Threshold pressure, pthres (cmH2O) 5.2 ± 2.4 4.4 ± 2.7N.S. 5.4 ± 2.8N.S.
 Maximum pressure, pmax (cmH2O) 34.4 ± 7.0 32.5 ± 7.8N.S. 30.5 ± 5.2N.S.
 Pressure rise time (s) 59.2 ± 55.9 54.6 ± 55.1N.S. 54.6 ± 47.9N.S.
 Slope (µV/cmH2O) 1.6 ± 1.4 1.9 ± 1.5ф 0.7 ± 0.6*
 Offset (µV) 0.21 ± 0.03 0.22 ± 0.04N.S. 0.19 ± 0.02N.S.
 Volume, Vthres (mL) 0.84 ± 0.2 0.53 ± 0.2ф 0.76 ± 0.3*
 Compliance (mL/cmH2O) 0.17 ± 0.03 0.10 ± 0.07ф 0.17 ± 0.06*
Manually calculated    
 Threshold afferent activity (µV) 0.21 ± 0.02 0.23 ± 0.04ф 0.20 ± 0.21*
 Threshold pressure (cmH2O) 6.5 ± 2.9 5.3 ± 2.3N.S. 6.7 ± 2.5N.S.
 Rise time (s) 53.2 ± 55.9 48.6 ± 55.1N.S. 45.5 ± 33.9N.S.
  1. Mean ± SD of the estimated parameters in control saline, prestimulation and poststimulation AA measurements, n = 72 measurements (saline = 18, prestimulation AA = 27, and poststimulation AA = 27). The symbols ф and * represent the statistical significance (p < 0.05) between group I vs II and II vs III respectively. N.S. indicates no statistical difference (p > 0.05) between the groups