Electrophysiological evaluation Patient Group (n=42) Ave ± SD, n (%) Control Group (n=15) Ave ± SD, n (%) P A-0 time interval (msn) 380.30 ± 116.98 195.73 ± 59.98 0.001* 0-2 time interval (msn) 1030.97 ± 271.00 714.93 ± 151.19 0.001* A-C time interval(msn) 1348.97 ± 231.19 978.13 ± 107.13 0.001* Dysphagia limits The number of patient with dysphagia 1 cc 3 cc 5 cc 10 cc 15 cc 20 cc The number of patient with normal swallowing 24 (57.2) 0 4 (16.7) 3 (12.5) 7 (29.1) 4 (16.7) 6 (25.0) 18 (42.8) 0 0 0 0 0 0 0 15 (100) 0.001*

Table 2: The distribution and comparison of electrophysiological evaluation results of the patients and control groups. Ave ± SD: average ± standard deviation. *The patient and control group comparisons were statistically different (p<0.05).