project

Control group (N = 50)

Observation group (N = 50)

t/χ²

P

Gender (example)

0.396

0.529

male

31 (62%)

34 (68%)

female

19 (38%)

16 (32%)

Age (years, $\overline{x}$ ± s)

57 ± 8.43

56 ± 7.82

0.615

0.540

BMI (kg/m², $\overline{x}$ ± s)

22.47 ± 3.14

21.84 ± 2.52

0.944

0.347

Course of disease (D, $\overline{x}$ ± s)

19.24 ± 3.58

18.84 ± 3.60

0.557

0.579

Dysphagia grade (example)

0.666

0.717

II2

16 (32%)

13 (26%)

III4

25 (50%)

29 (58%)

IV6

9 (18%)

8 (16%)