Univariate determinants of CT infection, selected for multivariate analysis
| Determinant | No* | % CT + | Pearson χ2 |
|---|---|---|---|
| *The sum of the categories for each determinant varies slightly because of missing data. | |||
| †Non-significant determinant; added in multivariate analysis as possible confounder. | |||
| Age | 0.249 | ||
| 14–17 | 50 | 2.0 | |
| 18–22 | 226 | 6.6 | |
| 23–27 | 256 | 5.9 | |
| 28–40 | 244 | 3.3 | |
| Situation of living | 0.036 | ||
| With parents | 231 | 2.2 | |
| With partner | 320 | 5.3 | |
| Without partner | 168 | 8.9 | |
| Other | 20 | 10.0 | |
| Activities, occupation | 0.096 | ||
| “Stable”: school/work/housewife | 652 | 4.4 | |
| “Unstable”: unemployed, combinations of jobs and school | 125 | 8.0 | |
| Location of practice | 0.005 | ||
| Inner city | 566 | 6.4 | |
| Suburban, rural | 211 | 1.4 | |
| Partner having urinary complaints | 0.000 | ||
| No | 738 | 4.2 | |
| Yes | 39 | 20.5 | |
| Intermenstrual bleeding in past 3 months | 0.023 | ||
| No | 568 | 4.1 | |
| Yes | 195 | 8.2 | |
| Postcoital bleeding in past 3 months | 0.000 | ||
| No/sometimes | 755 | 4.8 | |
| Frequently | 9 | 33.3 | |
| Vaginal discharge | 0.171 | ||
| No | 598 | 4.5 | |
| Yes | 168 | 7.1 | |
| Painful or frequent micturition | 0.003 | ||
| No | 642 | 4.1 | |
| Yes | 124 | 10.5 | |
| Age at first coitus | 0.008 | ||
| ≤15 | 150 | 10.0 | |
| 16–18 | 395 | 4.1 | |
| ≥19 | 232 | 3.5 | |
| Number of partners in the past year | 0.000 | ||
| 1 | 532 | 2.4 | |
| 2 | 140 | 8.6 | |
| 3–5 | 70 | 12.9 | |
| ≥6 | 28 | 17.9 | |
| Start of last relationship | 0.037 | ||
| >6 months | 499 | 3.8 | |
| <6 months | 185 | 8.7 | |
| No relationship now | 85 | 4.7 | |
| Partner having another partner in the past 3 months | 0.052 | ||
| No | 555 | 4.5 | |
| Yes/don’t know | 149 | 8.7 | |
| I have no partner right now | 60 | 1.7 | |
| Oral contraception (OAC) use | 0.001 | ||
| Yes | 534 | 3.2 | |
| No | 243 | 9.1 | |
| Contraception | 0.000 | ||
| Any | 644 | 3.1 | |
| None or coitus interruptus | 133 | 14.3 | |
| Condom use | 0.028 | ||
| Never | 306 | 3.6 | |
| Sometimes/regularly | 411 | 6.8 | |
| Always | 58 | 0.0 | |
| Use of MAP (emergency contraception) | 0.004 | ||
| Never | 599 | 3.8 | |
| Ever | 174 | 9.2 | |
| Ever been pregnant unintendedly | 0.110 | ||
| No | 663 | 4.5 | |
| Yes | 111 | 8.1 | |
| Marital status† | 0.950 | ||
| Single | 504 | 5.4 | |
| Married | 113 | 4.4 | |
| Cohabitating | 133 | 4.5 | |
| Separated/divorced | 26 | 3.9 | |
| Ethnicity† | 0.375 | ||
| Autochtonous Belgian | 640 | 5.0 | |
| Allochtonous Belgian (Turkish/Moroccan parents) | 30 | 3.3 | |
| West European | 37 | 2.7 | |
| Eastern European | 19 | 15.8 | |
| African | 19 | 0.0 | |
| Asian | 13 | 7.7 | |
| Other | 16 | 6.3 | |
| Education† | 0.918 | ||
| Secondary school | 257 | 5.5 | |
| Technical secondary school/professional training/art education | 159 | 5.0 | |
| Higher education (short studies) | 157 | 3.8 | |
| High school/university | 174 | 5.8 | |
| Various | 30 | 3.3 | |