Characteristics

Group 1

Group 2

Age

28 years old

30 years

P = 0.936

Marital status

Married

Single

Divorced

96

3

1

114

1

0

0.285

0.231

0,125

Gravidity

gravida

Paucigeste

multigravida

Parity

primipare

few previous deliveries

multiparous

great multipare

Dysmenorrhea

Genital infections

25

31

44

30

33

29

8

28

19

27

50

38

41

46

26

2

29

17

0.139

0.138

0.376

0.086

0.077

0.041

0.645

0.567

Study level

graduate

Secondary studies

Primary

Koranic

Illiterate

6

25

34

6

29

11

28

46

0

30

0.065

Residence

Dakar

Suburbs

Regions

31

69

0

38

76

1

0.605

0.499

0.857

Previous contraception

IUD

implants

depo-provera

Pills

Any

1

8

14

13

64

11

11

14

13

66

Pregnancy

singleton

twins

88

12

104

11

0.565

0.723

Insertion

Post-placental

immediate postpartum

manual

instrumental

58

42

58

42

115

0

29

86