Table 2 Incidence rate ratios and odds ratios of sources and categories of sexual and reproductive health knowledge, categories of contraceptive knowledge, sexual attitudes, and sexual behavior in Beijing, China in 2010-2011

15-18

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

≥19

1.544***

(1.412-1.687)

1.591***

(1.466-1.726)

1.546***

(1.414-1.690)

1.421***

(1.096- 1.844)

0.583***

(0.441-0.771)

1.040

(0.792-1.367)

2.221***

(1.641-3.008)

1.259*

(0.971-1.633)

0.452***

(0.340-0.601)

0.526***

(0.377- 0.733)

Male

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

Female

1.129***

(1.053-1.210)

1.227***

(1.153-1.305)

1.207***

(1.125-1.295)

1.485***

(1.162-1.897)

1.197

(0.908-1.579)

3.692***

(2.867-4.753)

2.627***

(1.882-3.665)

1.698***

(1.330-2.167)

0.390***

(0.291-0.523)

2.603***

(1.829-3.704)

Postgraduate

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

1 [Reference]

Undergraduate

1.944***

(1.787-2.115)

2.403***

(2.223-2.596)

1.881***

(1.728-2.047)

1.019

(0.801-1.297)

0.410***

(0.318-0.530)

0.424***

(0.327-0.550)

1.772***

(1.348-2.330)

1.029

(0.809-1.308)

0.894

(0.688-1.161)

0.131***

(0.096-0.179)

Observations

1,088

1,066

1,068

1,074

1,068

1,073

1,085

1,083

1,083

1,074