Adjusted risk factors for being a case of gonorrhoea in 1996 compared with being a case in 1994
| Heterosexual men and women (n=1173) | Homo/bisexual men (n=388) | |||||
|---|---|---|---|---|---|---|
| Variable | Odds ratio (adjusted) | 95% CI | p Value | Odds ratio (adjusted) | 95% CI | p Value |
| *Not estimable owing to small numbers. | ||||||
| †Estimated from one patient in 1994 and six patients in 1996. | ||||||
| ‡Multiple site infections were categorised as follows: “rectal” includes concurrent genital, throat, and “other” infections, “genital” includes concurrent throat and “other” infections but not rectal infections, and “throat” includes infections of the throat only. | ||||||
| §Relates solely to drugs given to treat gonococcal infection. For multiple treatments “quinolone” includes penicillin treatment and “other drug type” includes penicillin and/or quinolone treatment. | ||||||
| Sex | ||||||
| Male | 1.00 | Not applicable | ||||
| Female | 0.72 | 0.53–0.97 | 0.02 | |||
| Region | ||||||
| North Thames | 1.00 | 1.00 | ||||
| South Thames | 0.97 | 0.67–1.39 | 1.87 | 0.91–3.82 | ||
| North West | 1.54 | 0.88–2.70 | 3.77 | 1.45–9.80 | ||
| Northern and Yorkshire | 2.03 | 0.86–4.81 | 0.15 | 0.01–3.01 | ||
| Trent | 0.82 | 0.51–1.31 | 1.13 | 0.32–4.04 | ||
| Anglia and Oxford | 0.81 | 0.46–1.44 | 1.18 | 0.38–3.69 | ||
| South and West | 0.80 | 0.44–1.47 | 1.17 | 0.32–4.30 | 0.004 | |
| West Midlands | 1.21 | 0.65–2.27 | 0.06 | —* | ||
| Age | 0.99 | 0.98–1.02 | 0.97 | 1.01 | 0.98–1.05 | 0.40 |
| Ethnic group | ||||||
| White | 1.00 | 1.00 | ||||
| Black Caribbean | 1.24 | 0.85–1.80 | 6.68† | 0.70–63.43 | ||
| Black African | 0.63 | 0.35–1.13 | 1.78 | 0.41–7.71 | ||
| Indian/Pakistani/Bangladeshi | 0.63 | 0.28–1.38 | —* | |||
| Other/mixed | 0.72 | 0.39–1.33 | 0.09 | 0.67 | 0.13–3.53 | 0.04 |
| Partners in last 3 months | ||||||
| 0–1 | 1.00 | 1.00 | ||||
| 2 | 0.70 | 0.52–0.93 | 0.96 | 0.56–1.63 | ||
| 3 or more | 1.07 | 0.64–1.79 | 0.02 | 1.36 | 0.72–2.56 | 0.69 |
| Sex abroad in past 3 months | 0.71 | 0.39–1.28 | 0.22 | —* | ||
| Previous GUM clinic attendance | 0.75 | 0.52–1.08 | 0.10 | 0.85 | 0.49–1.47 | 0.53 |
| Concurrent acute STI | 1.24 | 0.93–1.65 | 0.13 | 0.99 | 0.48–2.04 | 0.97 |
| Previous acute STI | 1.19 | 0.79–1.80 | 0.39 | 1.40 | 0.78–2.51 | 0.26 |
| Site of infection‡ | ||||||
| Genital | 1.00 | 1.00 | ||||
| Rectal | 1.74 | 0.81–3.73 | 0.92 | 0.54–1.57 | ||
| Throat | 1.78 | 0.34–9.35 | 0.26 | 0.78 | 0.36–1.69 | 0.79 |
| Sensitivity to penicillin | ||||||
| Sensitive | 1.00 | 1.00 | ||||
| Reduced sensitivity | 2.55 | 1.20–5.41 | 2.63 | 1.03–6.73 | ||
| Resistant | 0.76 | 0.47–1.27 | 0.01 | 1.98 | 1.03–3.78 | 0.02 |
| Treatment§ | ||||||
| Penicillin | 1.00 | 1.00 | ||||
| Quinolone | 0.92 | 0.66–1.30 | 1.12 | 0.66–1.90 | ||
| Other drug type | 0.71 | 0.42–1.20 | 0.36 | 0.33 | 0.09–1.20 | 0.10 |