Increase in size the residual mass

The residual mass unchanged

Reduction of the size of residual mass

Complete disappearance of residual mass

female

male

total

female

male

total

female

male

total

female

male

total

6

2

8

13

0

13

2

9

11

0

0

0

After 6 months

6

2

8

7

0

7

8

9

17

0

0

0

After 1 year

9

2

11

4

0

4

8

2

10

0

7

7

After 2 years