Cervical swab culture results
| Microorganism | Cases | % |
|---|---|---|
| No. growth | 92 | 89 |
| Growth | ||
| Escherichia coli | 4 | 4 |
| There was one patient infected with both Klebsiella pneumonia and Acinetobacter baumannii | 4 | 4 |
| Group B streptococcus | 2 | 2 |
| Enterobacter spp. | 1 | 1 |
| Micrococcus spp. | 1 | 1 |
| There was one patient infected with both Klebsiella pneumonia and Acinetobacter baumannii | 1 | 1 |
| Yeasts | 12 | 12 |
General maternal characteristics (n= 104)
| Variable | n | % |
|---|---|---|
| Age (y) | 26.79 ±6.75 | |
| Gravidity | ||
| 1 | 39 | 38 |
| 2 | 38 | 37 |
| >2 | 27 | 26 |
| BMI before pregnancy (kg/m2) | 20.54 ±3.42 | |
| Risk factors of preterm labor | ||
| Having previous premature birth | 13 | 13 |
| Smoking cigarettes | 0 | 0 |
| Drinking alcohol | 0 | 0 |
| Using illicit drugs | 1 | 1 |
| BMI<18.5kg/m2 | 31 | 30 |
| Problems with the uterus or cervix | 4 | 4 |
| Physical injury or trauma | 0 | 0 |
| Teenage pregnancy | 21 | 20 |
| Advanced maternal age | 13 | 13 |
| Gestational age at presentation (wk) | ||
| <28 | 2 | 2 |
| 28-33 | 23 | 22 |
| 34-36 | 79 | 76 |
| Duration from preterm labor to delivery | ||
| within 48 h after admission | 98 | 94 |
| 48 h to 1 wk | 3 | 3 |
| >1 wk | 3 | 3 |
| Gestational age at delivery (wk) | ||
| <28 | 2 | 2 |
| 28-33 | 21 | 20 |
| 34-36 | 80 | 77 |
| >37 | 1 | 1 |
| Clinical manifestation of chorioamnionitis | 18 | 17 |
Clinical manifestation of chorioamnionitis
| Clinical chorioamnionitis | N | % |
|---|---|---|
| None | 86 | 83 |
| Body temperature >38°C | ||
| Maternal heart rate >100/min | 4 | 4 |
| Fetal heart rate >160/min | 4 | 4 |
| Uterine tenderness | 2 | 2 |
| Foul smell amniotic fluid | 1 | 1 |
| White blood cell >20,000/μL | 1 | 1 |
Relationship between cervical swab culture and HCA
| HCA | ||||
|---|---|---|---|---|
| Yes | No | Total | ||
| Cervical swab culture | Growth | 1 | 11 | 12 |
| No growth | 9 | 83 | 92 | |
| Total | 10 | 94 | 104 | |