Table 1.

Detailed clinical characteristics of pregnant women with or without preterm labor

Variable	Term (–) (n = 6)	Term (+) (n = 2)	PTL (–) (n = 3)	PTL (+) (n = 2)
Gestational age at delivery (wk)	38.3 (37.4–38.6)	38.0 (37.1–38.6))	31.8 (26.1–35.0)	30.4 (26.0–34.6)
Birthweight (g)	2,663.3 (2,120–3,170)	2,180 (1,900–2,460)	1,416.7 (610–2,090)	1,090 (540–1,640)
Sex
Male	4 (66.6)	1 (50)	3 (100)	1 (50)
Female	2 (33.3)	1 (50)	0	1 (50)
Parity
0	4 (66.6)	2 (100)	2 (66.6)	1 (50)
1	2 (33.3)	0	1 (33.3)	1 (50)
Cesarean delivery	5 (83.3)	2 (100)	1 (33.3)	0
Apgar score
1 min	6 (2–9)	6.5 (6–7)	5.7 (1–9)	4.5 (3–6)
5 min	8 (5–9)	7.5 (7–8)	6.7 (2–10)	7.5 (8–7)
Pathologic result
Chorionitis	0	0	0	1 (25)
Choriodeciduitis	0	2 (100)	0	1 (25)

Values are presented as median (range) or number (%).

Term, term delivery (>35 gestational weeks); PTL, preterm delivery (≤35 gestational weeks); (–), without placental inflammation; (+), with placental inflammation.