Table 3

Bivariate and multivariate analyses on the demographic and sex behavioral correlates of STI infection among non-sex worker Japanese women.

Characteristic

Crude odds ratio

95%CI*

Adjusted odds ratio†

95%CI


Socio-demographic factors

Age (years)

0.83

0.80-0.86

0.94

0.89-0.99

Occupation

Unemployed, full time student or housewife

0.69

0.47-1.01

0.61

0.30-1.25

Others

1.00

1.00

Education

High school education or less

0.86

0.60-1.21

0.76

0.39-1.48

University education or above

1.00

1.00

Marital status

Unmarried

21.74

13.34-35.40

4.11

1.73-9.77

Married

1.00

1.00

Behavioral factors

First sexual experience (years)

≦18

7.26

4.87-10.82

1.77

0.89-3.54

≧19

1.00

1.00

Number of sexual partners (previous year)

≧2

12.72

8.29-19.54

3.09

1.42-6.71

1

1.00

1.00

Sex with regular partners (previous year)

Had unprotected vaginal sex

Yes

3.02

1.78-5.11

3.59

1.49-8.64

No

1.00

1.00

Had unprotected oral sex

Yes

4.85

2.91-8.10

1.34

0.57-3.18

No

1.00

1.00

Had unprotected anal sex

Yes

1.56

0.76-3.18

0.83

0.23-2.95

No

1.00

1.00

Sex with casual partners (previous year)

Had unprotected vaginal and/or oral sex

Yes

23.16

13.51-39.68

2.08

0.75-5.71

No

1.00

1.00


* CI, confidence interval

†Odds ratio was adjusted by multiple logistic regression analysis for districts (Hokkaido/Tohoku, Kanto-Koshinetsu, Chubu/Kinki, Chugoku/Kyushu)

Ono-Kihara et al. BMC Public Health 2010 10:106   doi:10.1186/1471-2458-10-106

Open Data