Table 1.

The characteristics of subjects

Pregnant women (n = 67)	Maternal age ± SD (y)	Gestational age ± SD (wk)	Nulliparous (%)	Birth weight ± SD (g)	Mean Apgar ± SD
Induced stillbirths (n = 6)	28.5 (± 5.24)	25.23 (± 1.36)	33.3	612.6 (± 172.2)	-
Spontaneous stillbirths (n = 5)	27 (± 5.91)	25.57 (± 1.43)	40	650 (± 145.4)	-
Induced labor at term (n = 25)	28.07 (± 4.55)	38.96 (± 1.83)	60	3290 (± 467)	9.34 (± 2.02)
Spontaneous labor at term (n = 31)	28.16 (± 6.04)	39.68 (± 2.36)	58	3138 (± 649)	9.5 (± 1.22)

SD – standard deviation; (n – number of tissue samples)