BVS

COCP¹

IUD²

CON³

RYTH⁴

COCP + CON⁵

before

N

3 months

before

N

3 months

before

N

3 months

before

N

3 months

before

N

3 months

BVS (n)

BVS (n)

BVS (n)

BVS (n)

BVS (n)

I

22

I(20) - II(2)

3

I(1) - III(1) IV(1)

4

I(1) - II(3)

4

I(4)

-

-

II

20

I(1) - II(16) - III(3)

1

II(1)

7

I(1) - II(6)

1

II(1)

2

II(2)

III

4

I(1) - II(1) III(2)

.

-

-

-

-

-

-

-

IV

13

I(5) - II(1) IV(7)

-

-

10

I(1) - II(1) IV(7) - V(1)

1

IV(1)

-

-

V

12

I(2) - II(3) IV(2) - V(5)

-

-

4

IV(1) - V(3)

-

-

-

-

total

71

4

25

6

2