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Table 3 Adjusted odds ratio (OR) and 95% confidence intervals for factors associated with young age at first intercourse (defined as ≤ 14 years), Germany 2010-2012

From: Sexual behavior and factors associated with young age at first intercourse and HPV vaccine uptake among young women in Germany: implications for HPV vaccination policies

Variable and category

Age at first intercourse ≤ 14 vs. > 14 years

 

Adjusted OR

 

n

% pos

(95% CI)

p

Current smoker

 No

539

11.7

1

-

 Yes

244

32.4

2.3 (1.5-3.6)

<0.01

Educational status

 Low

46

41.3

1

-

 Medium

225

24.0

0.5 (0.2-1.1)

0.08

 High

510

13.3

0.3 (0.2-0.7)

0.01

Lifetime no. of sexual partners

 1

161

4.3

1

-

 2-3

200

11.5

2.5 (1.0-6.5)

0.05

 4-6

215

20.8

4.6 (1.9-11.2)

<0.01

  ≥ 7

205

30.2

5.0 (2.0-12.4)

<0.01

Bisexual expierience

 No

738

16.1

1

-

 Yes

37

51.3

3.2 (1.5-6.8)

<0.01

Contraceptive pill (ever)

 No

62

9.7

1

 

 Yes

723

18.9

2.7 (1.0-7.0)

0.05

Past pregnancy

 No

714

15.5

1

-

 Yes

70

44.3

3.0 (1.6-5.4)

<0.01

  1. OR odds ratio; 95% CI 95% confidence interval.