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Table 1 Participant Characteristics (N = 281)

From: Identifying pre-conception and pre-natal periods in which ambient air pollution exposure affects fetal growth in the predominately Hispanic MADRES cohort

Characteristic

Mean (SD) or N (%)

Participant

 Race/Ethnicity

  Hispanic

230 (81.9%)

  Non-Hispanic Black

36 (12.8%)

  Non-Hispanic White

8 (2.8%)

  Non-Hispanic Other

7 (2.5%)

 Annual Household Income

  < $50,000

123 (43.8%)

  \(\ge\)$50,000

52 (18.5%)

  Reported “Don’t Know”

106 (37.7%)

 Education

  HS Diploma or Less

164 (58.4%)

  Some or Completed College

117 (41.6%)

 Age (years)

28.5 (6.1)

 Pre-Pregnancy BMI (kg/m2)

29.2 (6.7)

 Any Prenatal Smoking

7 (2.5%)

Fetus

 Sex

  Female

146 (52.0%)

 Gestational Age at Ultrasound (weeks)

31.8 (1.7)

 Birth Order

  First

80 (28.5%)

  Second or more

195 (69.4%)

  Unknown

6 (2.1%)