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Table 1 Maternal and pregnancy characteristics for participants who delivered > 37 weeks, ≤ 37 weeks, and those participants who delivered preterm (< 37 weeks)

From: Bisphenol a exposure in Mexico City and risk of prematurity: a pilot nested case control study

Characteristics

Participants who

Delivered > 37 Weeks

(N = 30)

Participants who

Delivered ≤ 37 Weeks

(N = 30)

Participants who

Delivered Preterm

(< 37 weeks; N = 12)

Years of Maternal Age

[mean (SD)]

27.3 (5.9)

27.7 (6.2)

29.3 (5.9)

Years of Maternal Education [mean (SD)]

11.3 (2.5)

10.7 (3.6)

11.6 (2.9)

Prepregnancy BMI (kg/m2)

[mean (SD)]

24.9 (4.4)

25.2 (3.8)

23.7 (4.2)

Parity [number (%)]

   

   First Child

10 (33)

10 (33)

4 (33)

   Not First Child

20 (67)

20 (67)

8 (67)

Marital status [number (%)]

   

   Married

26 (87)

24 (80)

9 (75)

   Single

4 (13)

6 (20)

3 (25)

Infant Sex [number (%)]

   

   Male

15 (50)

13 (43)

5 (42)

   Female

15 (50)

17 (57)

7 (58)

  1. ** p-value < 0.05