Crude and adjusted odds ratios (OR) and 95% CI for the single and multiple variable models, for females only
| Risk factor | Crude (single variable) | Adjusted (multiple variable) | ||||
|---|---|---|---|---|---|---|
| Estimated OR | 95% CI | p Value | Estimated OR | 95% CI | p Value | |
| The multivariate logistic regression model contained age and setting as the two predictors of prevalence; NE, not estimable as either age or setting missing in category. | ||||||
| Age group | ||||||
| <20 | Reference | <0.0001 | Reference | <0.0001 | ||
| 20–24 | 0.57 | 0.47 to 0.67 | 0.62 | 0.52 to 0.75 | ||
| 25–29 | 0.28 | 0.22 to 0.35 | 0.30 | 0.23 to 0.39 | ||
| 30+ | 0.14 | 0.11 to 0.19 | 0.16 | 0.12 to 0.22 | ||
| Setting | ||||||
| GP surgery/community clinic | Reference | <0.0001 | Reference | 0.002 | ||
| FPC | 1.24 | 0.92 to 1.67 | 1.27 | 1.00 to 1.62 | ||
| TOP clinic | 1.61 | 1.23 to 2.10 | 1.60 | 0.20 to 2.14 | ||
| GUM clinic | 3.08 | 2.37 to 4.00 | 2.39 | 0.72 to 3.33 | ||
| Population based | 0.56 | 0.26 to 1.19 | 0.60 | 0.37 to 0.95 | ||
| Youth clinic | 2.72 | 1.92 to 3.84 | 1.37 | 0.95 to 1.98 | ||
| Antenatal clinic | 1.06 | 0.58 to 1.94 | 1.64 | 0.79 to 3.43 | ||
| Date | ||||||
| Before 1985 | Reference | <0.0001 | NE | 0.09 | ||
| 1985–1989 | 0.42 | 0.33 to 0.54 | Reference | |||
| 1990–4 | 0.30 | 0.24 to 0.36 | 0.88 | 0.40 to 1.96 | ||
| 1995–9 | 0.25 | 0.20 to 0.30 | 0.78 | 0.43 to 1.40 | ||
| After 2000 | 0.32 | 0.27 to 0.37 | 1.27 | 0.62 to 2.59 | ||
| Diagnostic test | ||||||
| Nucleic acid amplification | Reference | 0.04 | Reference | 0.5 | ||
| Antigen | 1.06 | 0.83 to 1.34 | 1.09 | 0.82 to 1.45 | ||
| Culture | 1.57 | 1.08 to 2.29 | NE | |||
| Specimen tested | ||||||
| Urine | Reference | 0.0005 | Reference | 0.09 | ||
| Cervical/endocervical swab | 0.86 | 0.78 to 0.93 | 1.37 | 0.96 to 1.95 | ||