Table 3 Crude odds ratios (cOR), and 95% confidence intervals (CI), for associations between sociodemographic, lifestyle, and mental ill health symptom scores, and the different risky sexual behaviors in Swedish young adults, stratified by gender. Risky sexual behaviors

 18–24

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 25–30

1.5 (1.1–2.0)

1.3 (1.0–1.7)

1.2 (0.8–1.9)

1.4 (0.8–2.2)

0.5 (0.4–0.7)

0.5 (0.4–0.7)

 Both born in Sweden

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 One or both born abroad

0.4 (0.3–0.5)

0.6 (0.5–0.9)

0.4 (0.2–0.6)

0.6 (0.4–1.0)

1.0 (0.7–1.4)

0.8 (0.6–1.1)

 University or other higher

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 High school or lower

0.8 (0.6–1.1)

1.0 (0.8–1.3)

0.6 (0.4–1.0)

1.4 (0.9–2.1)

1.1 (0.8–1.4)

1.5 (1.2–1.9)

 University/other higher

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 High school or lower

1.0 (0.8–1.3)

1.1 (0.8–1.4)

1.2 (0.8–1.8)

1.4 (0.9–2.3)

0.7 (0.5–0.9)

1.1 (0.8–1.2)

 Both parents

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 One parent or other person

0.9 (0.7–1.3)

1.2 (0.9–1.6)

0.8 (0.5–1.2)

1.4 (0.8–2.3)

2.1 (1.5–2.8)

1.4 (1.1–1.8)

 Less than once a month

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 Once a month or more

1.4 (1.01–1.81)

1.0 (0.8–1.3)

1.4 (0.9–2.1)

1.0 (0.7–1.6)

2.0 (1.5–2.6)

2.0 (1.6–2.5)

 No

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 Yes

0.7 (0.5–0.9)

0.5 (0.4–0.7)

0.8 (0.5–1.2)

1.2 (0.8–1.8)

3.2 (2.4–4.3)

3.2 (2.4–4.2)

 Low (good health)

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 High (poor health)

0.9 (0.7–1.2)

0.9 (0.7–1.2)

1.4 (0.9–2.1)

1.0 (0.6–1.5)

1.3 (1.01–1.80)

1.5 (1.2–1.9)

 Low (good health)

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 High (poor health)

0.9 (0.7–1.2)

0.9 (0.7–1.2)

1.4 (0.9–2.1)

1.3 (0.9–2.0)

1.4 (1.1–1.8)

1.5 (1.2–1.8)

 Low (good health)

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 High (poor health)

1.2 (0.9–1.7)

1.1 (0.8–1.4)

1.6 (1.02–2.52)

1.3 (0.9–2.0)

1.3 (1.0–1.8)

1.4 (1.2–1.8)