All

patients

Group I

(n = 20)

Group II

(n = 20)

Group III

(n = 20)

F/χ2#

P value

Age (yrs.)

Min. - maximum

38 - 79

38 - 71

38 - 77

40 - 79

1.425

Mean ± SD

59.20 ± 9.63

56.60 ± 9.78

61.70 ± 8.82

59.30 ± 10.03

0.249

Sex

Female

27 (45%)

11 (55%)

7 (35%)

9 (45%)

1.616#

0.446

Male

33 (55%)

9 (45%)

13 (65%)

11 (55%)