Skip to main content

Advertisement

Table 1 Characteristics of New Born Epigenetics STudy (NEST) Study Participants

From: Folic acid supplementation before and during pregnancy in the Newborn Epigenetics STudy (NEST)

Maternal Characteristic (n = 539)
  Number (%)
Maternal age at beginning of pregnancy   
<25 years 166 (30.8)
25-34 years 261 (48.4)
35-39 91 (16.9)
40+ 20 (3.7)
Missing 1 (0.2)
Maternal ethnicity   
African American 258 (47.9)
Caucasian 246 (45.6)
Asian/Native American/Latino 26 (4.8)
Missing 9 (1.7)
Maternal marital status   
Never married 154 (28.6)
Married 241 (44.7)
Living with partner 99 (18.4)
Divorced/separated 44 (8.2)
Missing 1 (0.2)
Maternal education   
Less than high school 63 (11.7)
High school graduate/GED 146 (27.1)
Some college 145 (27.1)
College graduate 98 (18.2)
Graduate education 86 (16.0)
Missing 1 (0.2)
Type of health insurance   
Public (e.g., Medicaid, SCHIP) 250 (46.4)
Private 174 (32.3)
Missing 115 (21.3)
Parity   
One 173 (32.1)
Two 113 (21.0)
Three or more 241 (44.7)
Missing 12 (2.2)
Cigarette smoking at interview   
Non-smokers 425 (78.9)
Smoker during pregnancy 113 (21.0)
Missing 1 (0.1)
Exposure to secondhand smoke during index pregnancy   
Yes 158 (29.3)
No 375 (69.6)
Missing 6 (1.1)
Pre-pregnancy body size   
<18 kg/m2 6 (1.1)
≥18 g/m2 - <25 kg/m2 164 (30.4)
≥25 kg/m2 - <30 kg/m2 96 (17.8)
≥30 kg/m2 206 (38.2)
Missing 66 (12.2)
Therapeutic interventions   
Hormonal contraceptive us up to one year before interview 135 (25.1)
Use of assisted reproductive technology for index pregnancy 17 (3.2)
Co-morbid conditions at interview   
None 341 (63.3)
Gestational diabetes 42 (7.8)
Type 1 or Type 2 diabetes 27 (5.0)
Asthma 88 (16.3)
*Other 39 (7.2)
**Any chronic disease 196 (36.4)
Folic acid intake before pregnancy   
None 265 (49.2)
Up to 1,000 μg/day 209 (38.8)
More than 1,000 μg/day 64 (11.9)
Missing 1 (0.2)
Folic acid intake during pregnancy   
None 182 (33.8)
Up to 1,000 μg/day 295 (54.7)
More than 1,000 μg/day 61 (11.3)
Missing 1 (0.2)
  1. *Other includes hypertension, depression, heart diseases, allergies, migraine headaches, epilepsy, anxiety, treated for cancer
  2. **Any chronic disease includes gestational diabetes, asthma, hypertension, depression, diabetes mellitus, heart diseases, allergies, migraine headaches, epilepsy, anxiety, treated for cancer