Relation of sociodemographic characteristics, sexual behaviours, and past medical history by syphilis serological findings in female factory workers (n=348), Akaki, 1997–9
| Variable | No (%) | TPPA positive (%) | PR* (95%CI†) univariate | PR (95% CI) multivariate |
|---|---|---|---|---|
| *PR = prevalence ratio; †CI = confidence interval; ‡p<0.01, test for trend; §p<0.05; ¶not included in the multivariate model because of the large number of missing observations. | ||||
| Number of years of sexual activity | ||||
| 0–14 | 101 (30.0) | 10.9 | 1.00 | 1.00 |
| 15–20 | 102 (30.3) | 25.5 | 2.34 (1.22 to 4.48)§ | 2.42 (1.29 to 4.56)§ |
| 21–24 | 70 (20.8) | 25.7 | 2.36 (1.19 to 4.69)§ | 2.69 (1.38 to 5.26)§ |
| 25–32 | 64 (19.0) | 40.6‡ | 3.73 (1.98 to 7.01)§ | 4.10 (2.25 to 7.49)§ |
| Missing | 11 | |||
| Lifetime sexual partner: | ||||
| <5 partners | 324 (93.1) | 23.2 | 1.00 | 1.00 |
| ≥5 partners | 24 ( 6.9) | 37.5 | 1.62 (0.93 to 2.82) | 1.80 (1.07 to 3.03)§ |
| Genital ulcer in the past 5 years: | ||||
| No | 330 (94.8) | 23.0 | 1.00 | |
| Yes | 18 ( 5.2) | 44.4 | 1.93 (1.11 to 3.35)§ | |
| Use of contraceptive pill in the past 5 years: | ||||
| No | 261 (75.0) | 27.2 | 1.00 | |
| Yes | 87 (25.0) | 14.9 | 0.55 (0.32 to 0.94)§ | |
| HIV infection: | ||||
| No | 306 (87.9) | 21.6 | 1.00 | 1.00 |
| Yes | 42 (12.1) | 42.9 | 1.99 (1.32 to 2.99)§ | 2.40 (1.67 to 3.45)§ |
| HSV-2 infection¶: | ||||
| No | 110 (38.6) | 14.6 | 1.00 | |
| Yes | 175 (61.4) | 29.1 | 2.00 (1.20 to 3.33)§ | |
| Missing | 63 | |||