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Table 1 Participant Characteristics (n = 154)

From: Endocrine disrupting chemical-associated hair product use during pregnancy and gestational age at delivery: a pilot study

Characteristic

n

Mean ± SD or %a

Range

Age at enrollment (years)

154

32.4 ± 4.5

20.0 − 45.0

Body mass index at 1st visit (kg/m2)

153

25.6 ± 5.4

17.5–47.7

Gestational age at delivery (weeks)

154

39.1 ± 1.9

24.1 − 41.7

Preterm birth (< 37 weeks)

10

7%

 

Delivery method

154

  

 Cesarean

37

24%

 

 Vaginal—induced

40

26%

 

 Vaginal—spontaneous

77

50%

 

Education

141

  

 Bachelor’s degree or higher

116

82%

 

 No bachelor’s degree

25

18%

 

Race/ethnicity

154

  

 Non-Hispanic Black

12

8%

 

 Non-Hispanic White

77

50%

 

 Other

65

42%

 
  1. aPercentages may sum to more than 100% due to rounding