Skip to main content

Advertisement

Table 1 Sample characteristics of 106 pregnant women participating in PROTECT project (2010–2012)

From: Urinary phthalate metabolites in relation to maternal serum thyroid and sex hormone levels during pregnancy: a longitudinal analysis

Variable Mean ± SD or n (%)
Maternal age at enrollment (years) 27.1 ± 4.8
Maternal education  
 Missing 3 (2.8)
 <High school 12 (11.3)
 High school/equivalent 7 (6.6)
 College 84 (79.2)
Annual household income (US$)  
 Missing 17 (16.0)
 $20,000 45 (42.4)
 ≥$20,000 to < $50,000 27 (25.5)
 ≥$50,000 17 (16.0)
Race  
 Missing 3 (2.8)
 White 52 (49.1)
 Mixed 39 (36.8)
 Other 12 (11.3)
Prepregnancy BMI (kg m-2)  
 Missing 4 (3.8)
 ≤25 59 (55.7)
 >25 to ≤30 31 (29.2)
 >30 12 (11.3)
Smoked during pregnancy  
 Missing 5 (4.7)
 Yes 1 (0.9)
 No 100 (94.3)
Alcohol use at first visit during pregnancy  
 Missing 4 (3.8)
 Yes 12 (11.3)
 No 90 (84.9)
  1. PROTECT, Puerto Rico Testsite for Exploring Contamination Threats, SD, standard deviation, BMI, body mass index.