Groups

Cases

SEX

Mid-age

Stage (%)

PS (%)

M

F

III

IV

≤2

≥3

group A

35

23

12

54.6

13 (37.1)

22 (62.8)^*

25 (71.4)

10 (28.6^*)

group B

26

20

6

51.2

11 (42.3)

15 (57.7)

16 (61.5)

10 (38.5)

group C

22

13

9

56.5

9 (40.9)

14 (63.7)^*

14 (63.7)

8 (36.3)