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. 2014 Feb 3;90(4):344–350. doi: 10.1136/sextrans-2013-051381

Table 3.

Period prevalence of selected STIs and other conditions among females attending GUM clinics in England in 2011 by sex worker status

Female sex workers Other female attendees Association with being a female sex worker
Period prevalence (%) Diagnosed/tested* (n/N) Period prevalence (%) Diagnosed/tested* (n/N) OR (unadjusted) 95% CI p Value OR (adjusted†) 95% CI p Value
Chlamydia‡ 10.1 257/2534 8.5 47 336/556 686 1.28 1.12 to 1.46 <0.001 1.93 1.61 to 2.33 <0.001
Gonorrhoea 2.7 68/2534 1.0 5756/553 960 2.76 2.16 to 3.54 <0.001 2.75 1.87 to 4.04 <0.001
Syphilis 0.1 3/2380 0.1 285/466 248 2.97 0.95 to 9.33 0.06 2.55 0.59 to 11.03 0.21
HIV§ 0.2 5/2405 0.2 895/443 740 1.16 0.48 to 2.80 0.74 0.74 0.18 to 3.04 0.68
Herpes 2.3 62/2704 2.8 19 165/696 941 0.83 0.65 to 1.07 0.15 0.91 0.63 to 1.32 0.63
Genital warts 2.8 76/2704 5.0 34 676/696 941 0.55 0.44 to 0.69 <0.001 1.07 0.79 to 1.45 0.68
Hepatitis B 0.6 16/2704 0.1 429/696 941 9.66 5.86 to 15.94 <0.001 1.63 0.51 to 5.24 0.82
Hepatitis C 0.2 6/2704 0.04 260/696 941 5.96 2.65 to 13.40 <0.001 1.68 0.39 to 7.27 0.49
Trichomoniasis 0.9 24/2704 0.8 5459/696 941 1.13 0.76 to 1.70 0.54 1.64 0.96 to 2.82 0.07
Scabies 0.1 3/2704 0.03 207/696 941 3.74 1.20 to 11.69 0.02 8.18 1.81 to 36.89 0.01
Molluscum contagiosum 0.5 14/2704 0.5 3585/696 941 1.01 0.60 to 1.70 0.98 1.51 0.79 to 2.86 0.21
Bacterial vaginosis 25.6 691/2704 12.7 88 238/696 941 2.37 2.17 to 2.58 <0.001 2.30 2.04 to 2.59 <0.001
Candidosis 16.6 450/2704 7.5 52 612/696 941 2.45 2.21 to 2.71 <0.001 1.92 1.68 to 2.19 <0.001
Urinary tract infection 7.8 212/2704 2.2 14 984/696 941 3.87 3.36 to 4.46 <0.001 2.29 1.90 to 2.75 <0.001
Pelvic inflammatory disease 10.6 286/2704 2.3 16 204/696 941 4.97 4.39 to 5.62 <0.001 4.21 3.58 to 4.95 <0.001
Other conditions 19.6 530/2704 9.2 64 402/696 941 1.77 1.61 to 1.95 <0.001 1.37 1.20 to 1.56 <0.001
Abnormal cervical cell cytology 32.9 111/337 16.3 1716/10 520 17.34 14.26 to 21.09 <0.001 8.66 6.60 to 11.37 <0.001

Significant differences (p Value <0.05) highlighted in bold.

*For chlamydia, gonorrhoea, syphilis and HIV, N=women with a recorded test for the STI of interest; for abnormal cell cytology, N=women with a recorded smear test; and for all other STIs/conditions without a SHAPPT code for the relevant diagnostic test/investigation, N=all women.

†Adjusting for age, ethnicity, migrant status, sexual orientation, location (inner London, outer London or outside London), deprivation of postcode of residence and chlamydia and/or gonorrhoea diagnosis.

‡Code suffixes to identify oral or rectal chlamydia infections were introduced to GUMCAD in 2011. However, as the use of these suffixes was not consistent across all clinics in 2011, the data presented here includes all chlamydia infections. In future, it will be possible to provide information on the site of infection.

§New HIV diagnoses in 2011.

GUM, genitourinary medicine; GUMCAD, Genitourinary Medicine Clinic Activity Dataset; STI, sexually transmitted infection.