Table 1.
Maternal demographic and clinical details of all study participants.
| Characteristic | GTP1 (20+0–22+6 weeks) |
GTP2 (26+0–28+6 weeks) |
||
|---|---|---|---|---|
| Term (n = 25) | Preterm (n = 22) | Term (n = 33) | Preterm (n = 17) | |
| Age, years | 30.5 ± 5.6 | 32.0 ± 4.4 | 30.1 ± 5.6 | 31.1 ± 4.9 |
| BMI, kg/m2 | 26.5 ± 4.9 | 28.7 ± 6.2 | 27.0 ± 4.6 | 27.5 ± 5.1 |
| Cervical length, mm | 38.0 ± 7.2 | 29.9 ± 11.0** | 32.5 ± 9.1 | 24.9 ± 13.1 |
| Fetal fibronectin, ng/ml | 24.3 ± 32.4 | 100.2 ± 133 | 29.7 ± 65.5 | 63.8 ± 97.6 |
| Vaginal pH | 4.2 ± 0.5 | 4.2 ± 0.5 | 4.2 ± 0.3 | 4.3 ± 0.8 |
| GAAS, weeks | 21.3 ± 1.1 | 20.7 ± 1.6 | 27.0 ± 0.9 | 27.0 ± 0.9 |
| GAAD, weeks | 39.6 ± 1.3 | 31.9 ± 4.7**** | 39.5 ± 1.2 | 33.4 ± 2.8**** |
BMI, body mass index; GAAD, gestational age at delivery; GAAS, gestational age at sampling; GTP, gestational time point. Data presented as Mean ± Standard Deviation (SD).
**
P < 0.01.
****
P < 0.0001.