Risk factors for delivery of an infant with congenital syphilis among pregnant women with active syphilis giving birth, Russia (n=715)
| Characteristic | Percentage (number) of those in risk group who are cases of congenital syphilis | Statistical significance |
|---|---|---|
| *Restricted to women who received treatment. | ||
| Age (years) at delivery | ||
| ≤19 | 67.5 (102) | Not significant |
| ≥20 | 66.0 (368) | |
| Married/living as married* | ||
| Yes | 65.2 (381) | Not significant |
| No | 71.9 (92) | |
| Place of residence | ||
| Resident | 61.8 (349) | p<0.001 |
| Non-resident | 83.0 (117) | |
| Homeless | 88.9 (8) | |
| Prenatal care | ||
| Yes | 53.9 (234) | p<0.001 |
| No | 85.7 (240) | |
| Time of 1st prenatal visit | ||
| ≤20 weeks | 41.2 (134) | p for trend <0.001 |
| ≥21 weeks | 63.0 (87) | |
| No prenatal visits | 85.7 (240) | |
| Number of visits | ||
| ≥4 visits | 53.4 (150) | p for trend <0.001 |
| ≤3 visits | 77.6 (45) | |
| No prenatal visits | 85.7 (240) | |
| Timing of first test for syphilis during pregnancy | ||
| ≤27 weeks | 45.9 (147) | p<0.001 |
| ≥28 weeks | 83.4 (272) | |
| Stage of syphilis diagnosis during pregnancy* | ||
| Any primary | 48.4 (15) | p<0.001 |
| Any secondary | 41.5 (56) | |
| Early latent | 52.9 (137) | |
| Late latent | 66.7 (6) | |
| Setting for syphilis diagnosis | ||
| Dermatovenereology dispensary | 47.6 (40) | p<0.001 |
| Women’s health setting | 60.1 (230) | |
| Other | 82.3 (204) | |
| Symptoms syphilis in mother | ||
| Yes | 48.0 (82) | p<0.001 |
| No | 72.1 (392) | |
| Type treatment* | ||
| Both | 33.3 (8) | p for trend <0.01 |
| Ambulatory | 40.4 (46) | |
| Inpatient | 53.9 (145) | |
| Treatment before pregnancy | ||
| Yes | 67.6 (71) | Not significant |
| No | 66.1 (403) | |
| Laboratory evidence of resolution | ||
| Yes | 60.8 (183) | p<0.01 |
| No | 70.3 (291) | |