Dysphonic Patients (N = 23)

Non-Dysphonic Patients (N = 40)

Mean (SD)

Mean (SD)

Age

38.31 (12.31)

38.04 (12.22)

Educational level

12.45 (3.43)

12.98 (5.09)

Years of smoking

14.09 (5.12)

-

Marital status

Married

13

18

Single

10

22

Area of living

Urban area

23

26

Suburban area

-

8

Rural area

-

6