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Table 2 Characteristics and VNS settings of the 32 patients with epilepsy at baseline, 8 months’ and 12 months’ follow-up

From: Chronic vagus nerve stimulation for drug-resistant epilepsy may influence fasting blood glucose concentration

VariablesBaseline8 months12 monthsp1p2p3
Height (cm)158 ± 20160 ± 18159 ± 180.0030.0110.432
Body weight (kg)57.8 ± 20.459.9 ± 20.461.7 ± 19.90.0010.0060.006
BMI (kg/m2)22.2 ± 4.022.5 ± 4.223.1 ± 4.30.2940.0090.054
Systolic blood pressure (mmHg)115 ± 17111 ± 11113 ± 120.0940.3180.288
Diastolic blood pressure (mmHg)75 ± 1173 ± 1175 ± 90.4360.6580.260
Amplitude (mA)1.3 ± 0.51.5 ± 0.4< 0.001
Pulse width (μs)500 ± 0500 ± 01.000
Frequency (Hz)30 ± 030 ± 01.000
On time (s)30 ± 030 ± 01.000
Off time (min)5 ± 05 ± 01.000
  1. p values were provided for comparison as follows: (1) p1: after 8-month VNS vs. baseline; (2) p2: after 12-month VNS vs. baseline; (3) p3: after 12-month VNS vs. after 8-month VNS for all the study subjects