Parameter

Patients

Controls

P value

Sex

Male

15

15

NS

Female

14

14

NS

Mean Age ± SD (years)

61.1 ± 12.7

61.1 ± 11.7

NS

ASA Class

Class 2

2

3

NS

Class 3

17

19

NS

Class 4

10

7

NS

Mean TSH ± SD (0.4 - 4.2 mcU/mL)

29.19 ± 20.54

NA

Free T4

NA

0.2

2

0.3

1

0.4

2

0.5

5