Normal thyroid gland

Cigarette smoker

χ2

Shisha smoker

χ2

No

Yes

No

Yes

N

N%

n

N%

P-value

n

N%

n

N%

P-value

No

67

47.9%

4

15.4%

9.446

70

47.3%

1

5.6%

11.424

Yes

73

52.1%

22

84.6%

P = 0.002

78

52.7%

17

94.4%

P = 0.001