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Table 1 Characteristics of the study groups

From: Corticotropin-releasing hormone, its binding protein and receptors in human cervical tissue at preterm and term labor in comparison to non-pregnant state

Parameter Preterm labor (PTL) Term labor (TL) Preterm not in labor (PTnotL) Term not in labor (TnotL) Non-pregnant (NP)
Number of subjects 14 18 7 21 7
Age (median, range) 27.5 (18–37) 28.5 (20–37) 32 (27–35) 32 (25–42) 45 (37–49)
Parity (median, range) 1 (0–3) 1 (0–2) 1 (0–2) 1 (0–3) 1 (0–3)
Previous preterm births in the group 1 0 1 2
Previous C/S (median, range) 0 (0–1) 0 (0–1) 0 (0–0) 0 (0–2)
Gestational age in days (median, range) 237.5 (184–255) 278 (259–292) 193 (183–256) 270 (259–278)
Treatment with corticosteroids 4 0 4 0