Table 1 Demographic and pregnancy characteristics of women included in the study

Maternal age in years^a

33.0(19–42)

32.0(23–45)

0.48

30.0(24–36)

32.0(25–39)

0.52

GA in weeks^a

6(6–8)

6(6–8)

0.62

7(6–8)

7(6–7)

0.58

Gravidity^a

2.0(1–4)

3.0(1–6)

0.57

1.0(1–3)

2.0(1–4)

0.60

History of RPL (%)^b

57(8.3)

36(5.2)

0.42

6(6.3)

0(0.0)

1.00

IVF or ICSI (%)^b

178(26.1)

145(21.1)

0.38

13(13.7)

1(16.7)

1.00

GA at delivery or miscarriage (weeks)^a

39 + 4(34 + 6 to 42 + 0)

9 + 3(7 + 0 to 16 + 2)

NA

39 + 2(37 + 0 to 41 + 5)

10 + 3(8 + 5 to 15 + 6)

NA