Research Article
IL-37 Exerts Anti-Inflammatory Effects in Fetal Membranes of Spontaneous Preterm Birth via the NF-κB and IL-6/STAT3 Signaling Pathway
Table 1
Clinical information of study objects.
| Maternal characteristics | Normal pregnancy () | Spontaneous preterm birth () |
| Maternal age (years) | | | Gestational age (weeks) | | b | Prepregnancy BMI (kg/m2) | | | Neonatal birth weight (g) | | b | fFN (positive or negative) | Negative | Negative | Placental weight (g) | | a |
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BMI: body mass index. Data are presented as the . a; b. |