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Table 1 Demographic data of patients

From: Clinical effectiveness of the sequential 4-channel NMES compared with that of the conventional 2-channel NMES for the treatment of dysphagia in a prospective double-blind randomized controlled study

   4ch NMES
(n = 12)
2ch NMES
(n = 11)
P-value
Male   7 (58.3%) 5 (45.5%) 0.795
Hypertension   2 (16.7%) 6 (54.5%) 0.057
DM   0 (0%) 2 (18.2%) 0.122
Prior CVA   9 (75%) 6 (54.5%) 0.304
Smoking Hx   1 (8.3%) 2 (18.2%) 0.484
Cervical op   0 (0.0%) 0 (0.0%) 1.000
Stroke:ICH   9:3 4:7 0.062
Disease duration (day)   49.2 ± 109.1 32.6 ± 24.8 0.487
MMSE-K   16.8 ± 10.3 11.9 ± 8.7 0.347
VDS Oral 19.3 ± 4.5 14.4 ± 6.8 0.059
Pharyngeal 44.3 ± 12.7 36.9 ± 10.7 0.104
Total 63.7 ± 15.1 51.4 ± 15.7 0.051
PAS   5.7 ± 2.2 4.4 ± 2.7 0.316
FOIS   1.8 ± 1.5 3.4 ± 1.6 0.032
NMES treatment duration (min) 411.8 ± 40.5 409.2 ± 67.6 0.786
NMES Amplitude (mA) Channel 1 7.1 ± 2.9 9.4 ± 1.8 0.079
  Channel 2 7.3 ± 3.3 9.4 ± 1.8 0.095
  Channel 3 7.2 ± 3.0   
  Channel 4 4.9 ± 1.9   
Stroke territory   (n = 9) (n = 5)  
ACA territory   0 0.0%) 0 (0.0%)  
MCA territory   4 (44.4%) 4 (80%)  
PCA territory   0 (0.0%) 0 (0.0%)  
Brainstem lesion   5 (55.6%) 1 (20%)  
  1. ACA anterior cerebral artery, MCA middle cerebral artery, PCA posterior cerebral artery
  2. *P < 0.05