Table 1.
Demographic and clinical findings.
| Variable | Preterm Birth 28–32 weeks n = 7 | Controls >39 weeks n = 9 | P |
|---|---|---|---|
| Ethnicity (% European)* | 6 (86%) | 8 (89%) | 1.0 |
| Age (years)* | 29.1 (1.4) | 30.8 (0.7) | 0.29 |
| Body mass index (kg/m2)* | 25.9 (1.5) | 24.8 (1.3) | 0.59 |
| Primagravid* | 4 (57%) | 6 (67%) | 1.0 |
| Socioeconomic index score* | 47 (5.4) | 48 (3.8) | 0.95 |
| Gestation at sampling | 20.1 (0.21) | 19.9 (0.23) | 0.57 |
| Gestation at delivery (weeks) | 31.4 (0.6) | 39.8 (0.5) | <0.001 |
| Customized birthweight centile | 58.6 (10.3) | 44.2 (7.9) | 0.28 |
For analyses, only those with Nanostring results were included; Term controls; n = 9, SPTB n = 7. Data are number (%) or mean (SEM) as appropriate. *Data are collected at 14–16 weeks’ gestation. P values are for comparing between the two groups using Fisher’s Exact Test or Student t-test. Outside of the gestational age at time of delivery, there were no differences in baseline characteristics between the two maternal groups. There were also no differences between the total original cohort assessed (n = 12 per group) and those for which Nanostring data were subsequently available for analysis.