Table 1

Characteristics of studied groups: univariate analysis of age, sexual, reproductive and behavioural history.

HPV(+)

HPV(-)

Total

HPV(+) %

Comparison*

95% CI

significance


TOTAL: frequency

266

591

857

31.0%


Age

mean age (years) (sd)

31.1(8.0)

33.5(7.5)

32.7(7.6)

diff. -2.4

-1.3 to -3.5

t = -4.26,

P < 0.00005

Frequency:

<25 years

63

72

135

46.7%

OR = 1.00

25- years

58

116

174

33.3%

OR = 0.57

0.36 to 0.91

P = 0.017

30- years

68

142

210

32.4%

OR = 0.55

0.35 to 0.85

P = 0.008

35- years

36

144

180

20.0%

OR = 0.29

0.17 to 0.47

P < 0.00005

40+ years

41

117

158

25.9%

OR = 0.40

0.25 to 0.65

P = 0.0003

Age at 1st intercourse

mean age (years)

18.6

19.6

19.3

diff. -1.01

-0.49 to -1.54

t = -3.79,

P = 0.0002

Frequency:

<16 years

25

42

67

37.3%

OR = 1.00

16 years

34

55

89

38.2%

OR = 1.04

0.54 to 2.00

P = 0.91

17 years

44

73

117

37.6%

OR = 1.01

0.54 to 1.88

P = 0.97

18 years

58

115

173

33.5%

OR = 0.85

0.47 to 1.52

P = 0.58

19 years

36

55

91

39.6%

OR = 1.10

0.57 to 2.11

P = 0.77

20 years

21

87

108

19.4%

OR = 0.41

0.20 to 0.81

P = 0.01

21 years

15

24

39

38.5%

OR = 1.05

0.47 to 2.37

P = 0.91

22+ years

33

140

173

19.1%

OR = 0.40

0.21 to 0.74

P = 0.004

Number of partners

mean

4.20

2.83

3.26

diff. 1.37

0.96 to 1.79

t = 6.51,

P < 0.00005

frequency:

1 partner

39

234

273

14.3%

OR = 1.00

2 partners

46

129

175

26.3%

OR = 2.14

1.33 to 3.45

P < 0.00005

3 partners

58

86

144

40.3%

OR = 4.05

2.52 to 6.51

P < 0.00005

4 partners

41

42

83

49.4%

OR = 5.86

3.39 to 10.13

P < 0.00005

5–9 partners

54

75

129

41.9%

OR = 4.32

2.65 to 7.03

P < 0.00005

10+ partners

28

25

53

52.8%

OR = 6.72

3.55 to 12.71

P < 0.00005

Parity

Nulliparous

215

432

33.2%

OR = 1.00

Parous

51

159

24.3%

OR = 0.64

0.45 to 0.92

P = 0.0154

Spontaneous abortion

No

238

485

723

32.9%

OR = 1.00

Yes

28

106

134

20.9%

OR = 0.54

0.35 to 0.84

P = 0.0063

Induced abortion

No

227

493

720

31.5%

OR = 1.00

Yes

39

98

137

28.5%

OR = 0.86

0.58 to1.29

P = 0.48

Contraceptives

never used any type

210

455

665

31.5%

OR = 1.00

have used at least one type

56

136

192

29.2%

OR = 0.89

0.63 to 1.27

P = 0.52

Smoking

never smoked

168

432

600

28.0%

OR = 1.00

ever smoked

98

159

257

38.1%

1.58

1.17 to 2.16

P = 0.003


*diff. is the difference between two mean values and OR is the odds ratio compared with the first category.

Verteramo et al. BMC Infectious Diseases 2009 9:16   doi:10.1186/1471-2334-9-16

Open Data