Groups

Number of examples

Gender (cases)

(a person’s) age

Course of disease

Educational attainment

Male

Women

(years, $\overline{x}$ ± s)

(years, $\overline{x}$ ± s)

(years, $\overline{x}$ ± s)

Control subjects

30

18

12

57.17 ± 7.07

3.27 ± 1.14

9.57 ± 4.10

Experimental group

30

17

13

58.03 ± 6.61

3.27 ± 1.08

10.10 ± 3.45

χ²

0.003

0.413

0.067

0.018

t-value

−0.372

−0.456

0.000

−0.717

p-Value

0.712

0.652

1.000

0.479