Table 1 Associations between reproductive health and vaginal hygiene factors and the 1-year period prevalence of HPV infection by phylogenetic group in the Ludwig-McGill cohort study

  Former vs. Never

1.28

0.79, 2.07

0.90

0.71, 1.15

2.00

1.23, 3.24

  Current vs. Never

1.43

0.83, 2.48

1.09

0.82, 1.45

2.00

1.15, 3.47

   < 6 years vs. Never

1.25

0.66, 1.38

0.98

0.71, 1.35

1.40

0.83, 2.37

  6+ years vs. Never

1.23

0.60, 2.53

1.00

0.70, 1.43

0.62

0.32, 1.19

  Yes vs. No

0.48

0.30, 0.75

0.78

0.62, 0.98

0.73

0.49, 1.08

  Yes vs. No

1.24

0.65, 1.36

0.84

0.59, 1.21

0.65

0.33, 1.30

  Yes vs. No

1.96

1.22, 3.16

1.34

1.00, 1.79

1.34

0.83, 2.17

  Yes vs. No

-

-

0.37

0.13, 1.05

0.74

0.17, 3.20

  Yes vs. No

-

-

0.82

0.37, 1.81

0.32

0.04, 2.40

  Yes vs. No

0.54

0.32, 0.91

0.93

0.74, 1.18

1.02

0.68, 1.53

  Yes vs. No

1.49

0.87, 2.54

1.33

0.98, 1.81

1.30

0.79, 2.14

  Frequent vs. Infrequent

1.20

0.53, 2.69

1.29

0.83, 2.00

0.11

0.02, 0.81

  Natural vs. None

0.96

0.60, 1.54

0.92

0.72, 1.17

0.90

0.57, 1.41

  Medical vs. None

1.09

0.23, 5.15

0.97

0.46, 2.06

2.75

0.98, 7.73

  Unknown vs. None

1.18

0.27, 5.22

0.51

0.21, 1.21

2.92

1.20, 7.12

  Yes vs. No

0.96

0.64, 1.45

0.96

0.78, 1.20

0.89

0.60, 1.31

  Yes vs. No

0.99

0.65, 1.50

1.11

0.89, 1.38

1.22

0.84, 1.75

  Yes vs. No

2.83

0.59, 13.51

1.14

0.34, 3.75

0.91

0.12, 7.00

  Former vs. Never

3.86

0.86, 17.34

0.83

0.51, 1.33

1.43

0.52, 3.97

  Current vs. Never

5.95

1.14, 30.97

0.97

0.53, 1.79

1.84

0.56, 6.02

  Former vs. Never

5.14

1.17, 22.52

1.10

0.70, 1.75

1.85

0.68, 5.02

  Current vs. Never

1.64

0.22, 12.24

1.06

0.56, 2.02

1.74

0.49, 6.11

  Former vs. Never

-

-

1.68

0.40, 7.72

-

-

  Current vs. Never

-

-

1.10

0.08, 16.23

-

-

  Former vs. Never

0.75

0.20, 2.84

-

-

-

-

  Current vs. Never

1.36

0.48, 3.89

-

-

-

-

  Former vs. Never

2.82

0.64, 12.42

0.96

0.62, 1.49

2.21

0.81, 6.01

  Current vs. Never

3.44

0.63, 18.68

1.10

0.60, 2.03

2.82

0.83, 9.53

  Natural vs. None

1.22

0.78, 1.92

0.91

0.72, 1.15

0.98

0.66, 1.47

  Medical vs. None

0.80

0.27, 2.40

1.26

0.77, 2.04

0.76

0.29, 2.02

  Unknown vs. None

2.75

0.53, 14.15

1.33

0.45, 3.91

5.33

1.80, 15.82

  Yes vs. No

0.37

0.05, 2.77

0.89

0.42, 1.91

0.74

0.17, 3.10

  Yes vs. No

2.05

1.11, 3.79

0.90

0.60, 1.37

0.89

0.42, 1.89

  Yes vs. No

1.73

1.13, 2.65

1.17

0.92, 1.50

1.26

0.83, 1.89

  HPV vs. None

3.87

2.09, 7.14

2.02

1.27, 3.19

1.21

0.54, 2.71

  Non-HPV vs. None

1.33

0.81, 2.19

1.03

0.78, 1.34

1.27

0.82, 1.97

  Yes vs. No

1.28

0.63, 2.63

1.30

0.88, 1.91

1.31

0.68, 2.52

  Yes vs. No

1.25

0.61, 2.54

1.29

0.88, 1.87

1.48

0.83, 2.66

  Yes vs. No

2.10

1.37, 3.22

1.53

1.21, 1.94

1.12

0.74, 1.69