Table 2

Description of individuals from the target population (21–23 years) submitting a sample and a questionnaire

Women n=10295% CIMen (AS) n=5595% CI
(AS) Directly age standardised using age distribution among women as reference.
*Difference between men and women: χ2=2.143 (df=2), p<0.34.
†Difference between men and women: χ2=5.749, p=0.016.
‡Difference between men and women: χ2=5.124, p=0.024.
Age at first sexual intercoursen=102n=54
    13 to 15 years33.3%24.2 to 42.535.4%21.9 to 49.0
    16 to 18 years30.4%21.5 to 39.348.7%34.6 to 62.9
    19 to 21 years36.3%26.9 to 45.615.8%5.7 to 26.0
Life time partnersn=101n=55
    one partner4.0%0.2 to 7.84.64%0 to 10.1
    2–5 partners30.7%21.7 to 39.733.1%21.7 to 44.4
    6 or more partners65.3%56.1 to 74.662.3%50.1 to 74.5
Partners during past 6 months*n=101n=53
    none5.0%0.7 to 9.21.1%0 to 3.2
    one partner58.4%48.8 to 68.048.9%34.3 to 63.6
    2 or more partners36.6%27.2 to 46.050.0%35.4 to 64.6
Current regular relationshipn=101n=54
    yes61.4%51.9 to 70.962.8%48.8 to 76.7
    no38.6%29.1 to 48.137.2%23.3 to 51.2
Contraception at last sexual intercoursen=100n=54
    none14.0%7.2 to 20.817.7%6.6 to 28.9
    condom20.0%12.2 to 27.814.3%4.9 to 23.7
    oral contraception59.0%49.4 to 68.660.3%46.2 to 74.5
    condom and oral contraception5.0%0.7 to 9.32.4%0 to 6.9
    other2.0%0 to 4.75.2%0 to 12.2
Previous test for Chlamydia trachomatisn=101n=54
    yes43.6%33.9 to 53.225.7%13.2 to 38.2
    no56.4%46.8 to 66.174.3%61.8 to 86.8
Previous positive test for Chlamydia trachomatisn=101n=54
    yes26.7%18.1 to 35.411.1%2.2 to 19.9
    no73.3%64.6 to 81.989.0%80.1 to 97.8