Table 1

Demographic characteristics, sexual behaviour, and sexual history of eligible participants, screened participants, and chlamydia positive participants

Demographic, sexual behaviour and sexual history correlatesEligible participates (n=477)% of 477Screened participants (n=432)% of 432Chlamydia positive participants (n=18)
Age (years)
    16–17132.73133.0090
    18–205411.324911.3436
    21–2514029.3512528.9353
    26–3018137.9516037.0374
    31–358918.668519.6765
Sex
    Female21344.6519645.37012
    Male26455.3523654.6306
Patient/companion
    Patient33470.0230169.67615
    Companion14329.9813130.3243
Ethnicity
    Bangladeshi10.2110.2310
    Black Caribbean306.29276.2503
    Black African296.08266.0193
    Black other142.94133.0090
    Chinese30.6330.6940
    Indian112.3192.0830
    Pakistani102.1092.0830
    White35073.3831572.91711
    Other296.08296.7131
Alcohol intake unit/week
    >21/week367.55337.6391
    <21/week44192.4539992.36117
Meeting place
    Pub5411.324811.1115
    Club469.64409.2592
    Other37779.0434479.63011
Number of sexual partner(s) in the past year
    0173.56153.4720
    131666.2529067.1306
    27415.516515.0465
    >27014.686214.3527
Condom use
    Never15833.1214734.0284
    Sometimes22948.0120547.45410
    Always9018.878018.5194
History of STIs
    Chlamydia296.08266.0192
    Gonorrhoea81.6861.3891
    Genital herpes81.6881.8520
    Genital warts214.40194.3981
    Syphilis00.0000.0000
    Non-specific91.8992.0830
    HIV10.2100.0000
GUM visit
    Yes11223.489822.6855
    No36576.5233477.31513
Chlamydia knowledge
    Yes21645.2821148.8434
    No26154.7222151.15714
Sexual orientation
    Heterosexual46998.3242598.38017
    Homo/bisexual81.6871.6201