Table 4.
Logistic regression analysis of syphilis infected pregnant women's clinical characteristics and congenital syphilis in newborns.
| n (%) | Univariable | Multivariablea | |||
|---|---|---|---|---|---|
| cORb (95% CI) | P Value | aORc (95% CI) | P Value | ||
| History of syphilis infection | |||||
| Yes | 74 (2.5%) | — | — | ||
| No | 404 (3.1%) | 1.23 (0.96, 1.58) | 0.104 | 0.98 (0.76, 1.27) | 0.870 |
| Maternal syphilis stage | |||||
| Latent syphilis | 275 (2.6%) | — | — | ||
| Primary syphilis | 38 (3.9%) | 1.53 (1.09, 2.17) | 0.015 | 1.38 (0.97, 1.96) | 0.071 |
| Secondary syphilis | 8 (5.1%) | 2.03 (0.99, 4.18) | 0.054 | 1. 58 (0.76, 3.27) | 0.220 |
| Tertiary syphilis | 0 (0.0%) | NA | NA | ||
| Unknown | 157 (4.0%) | 1.58 (1.30, 1.93) | <0.001 | 1.42 (1.15, 1.74) | 0.001 |
| Maternal titer of nontreponema | |||||
| ≤1 : 4 | 279 (2.5%) | — | — | ||
| 1 : 8–1 : 32 | 150 (4.0%) | 1.63 (1.33, 1.99) | <0.001 | 1.60 (1.30, 1.97) | <0.001 |
| ≥1 : 64 | 29 (5.1%) | 2.10 (1.42, 3.11) | <0.001 | 1.90 (1.28, 2.83) | 0.002 |
| Unknown | 20 (4.3%) | 1.75 (1.10, 2.78) | 0.018 | 1.37 (0.86, 2.19) | 0.189 |
| Gestational week for the first treatment | |||||
| ≤14 | 21 (1.1%) | — | — | ||
| 15–28 | 49 (1.6%) | 1.47 (0.88, 2.45) | 0.144 | 1.41 (0.84, 2.37) | 0.192 |
| 29–37 | 67 (3.4%) | 3.28 (2.00, 5.37) | <0.001 | 3.20 (1.94, 5.27) | <0.001 |
| ≥37 or untreated | 341 (3.9%) | 3.75 (2.41, 5.84) | <0.001 | 3.70 (2.36, 5.80) | <0.001 |
aThe model was adjusted for maternal age, residence location, education, and job.
bcOR refers to crude odds ratio.
caOR refers to adjusted odds ratio.