Table 2

Sociodemographic factors associated with respondents (women, n=2595; men, n=1477) compared with non-respondents (women, n=7140; men, n=8788); crude and adjusted OR with 95% CIs

WomenMen
Crude OR95% CIAdj. OR*95% CICrude OR95% CIAdj. OR*95% CI
Age group
 15–18 yearsRefRefRefRef
 19–24 years0.61(0.55 to 0.69)0.61(0.50 to 0.74)0.63(0.55 to 0.72)0.70(0.56 to 0.89)
 25–29 years0.58(0.52 to 0.66)0.52(0.42 to 0.65)0.62(0.54 to 0.71)0.66(0.50 to 0.87)
Ethnicity
 DanishRefRefRefRef
 Western immigrant0.35(0.26 to 0.46)0.84(0.45 to 1.56)0.33(0.22 to 0.50)0.73(0.37 to 1.43)
 Non-Western immigrant0.23(0.19 to 0.27)0.30(0.23 to 0.39)0.29(0.22 to 0.38)0.33(0.24 to 0.45)
Education
 Ongoing
  ≤10 yearsRefRefRefRef
  11–15 years0.75(0.66 to 0.86)1.10(0.91 to 1.33)0.69(0.59 to 0.81)0.90(0.71 to 1.13)
  >15 years0.91(0.79 to 1.05)1.48(1.16 to 1.89)1.13(0.95 to 1.35)1.61(1.19 to 2.17)
 Highest completed
  ≤10 years0.33(0.27 to 0.41)0.61(0.47 to 0.80)0.26(0.20 to 0.33)0.40(0.29 to 0.56)
  11–15 years0.57(0.49 to 0.67)0.98(0.77 to 1.26)0.57(0.48 to 0.68)0.81(0.60 to 1.10)
  >15 years1.05(0.86 to 1.28)1.89(1.39 to 2.56)0.98(0.70 to 1.36)1.38(0.89 to 2.14)
Highest level of parents’ education
 >15 yearsRefRefRefRef
 11–15 years0.67(0.61 to 0.74)0.74(0.67 to 0.82)0.66(0.59 to 0.74)0.78(0.69 to 0.88)
 ≤10 years0.36(0.30 to 0.44)0.50(0.41 to 0.62)0.35(0.28 to 0.45)0.55(0.43 to 0.71)
  • Numbers in bold show a significantly increased or decreased OR for respondents compared with non-respondents.

  • *Adjusted for age group, ethnicity, educational level and highest achieved level of parents’ education.