BVS

COCP¹

IUD²

CON³

RYTH⁴

COCP + CON⁵

before

N

3 months

BVS (n)

before

N

3 months

BVS (n)

before

N

3 months

BVS (n)

before

N

3 months

BVS (n)

before

N

3 months

BVS (n)

I

7

12

-

-

-

-

1

1

-

-

II

11

(4/11)^*

9

1

1

4

(1/4)^*

3

-

-

1

2

III

1

2

-

-

-

-

-

-

-

-

IV

3

2

-

-

3

1

-

-

-

-

V

4

(2/4)^*

2

-

-

2

(1/2)^*

2

-

-

-

-

total

26

27

1

1

9

6

1

1

1

2