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Table 3 Selected Characteristics at Study Entry of MADRES Study Participants Who Had Delivered As of October 1, 2018 (N=291)

From: Study Design, Protocol and Profile of the Maternal And Developmental Risks from Environmental and Social Stressors (MADRES) Pregnancy Cohort: a Prospective Cohort Study in Predominantly Low-Income Hispanic Women in Urban Los Angeles

  n(%) or Mean (SD)
Cohort Entry Point
 <20 weeks (Regular Entry) 220 (75.6)
 20-30 weeks (Late Entry) 71 (24.4)
Maternal Age (years)
 <=20 years 30 (10.3)
 21-25 years 63 (21.7)
 26-30 years 83 (28.5)
 31-35 years 85 (29.2)
 36-40 years 23 (7.9)
 > 40 years 7 (2.4)
Gestational Age (weeks)
 <20 weeks (Regular Entry) 11.26 (4.0)
 20-30 weeks (Late Entry) 24.99 (2.9)
Race and Ethnicity
 Hispanic 216 (74.2)
 Black, Non-Hispanic 29 (9.9)
 Multi-racial, Non-Hispanic 5 (1.7)
 Other, Non-Hispanic 10 (3.4)
 White, Non-Hispanic 22 (7.6)
 Missing / Refused to Answer 9 (3.1)
Place of Birth
 US or Canada 138 (47.4)
 Mexico 76 (26.1)
 Other Central America 32 (11.0)
 South America 1 (0.3)
 Asia 9 (3.1)
 Europe 3 (1.0)
 Australia 1 (0.3)
 Missing / Refused to Answer 31 (10.7)
Education
 < 12th grade 74 (25.4)
 Completed grade 12 83 (28.5)
 Some college or tech school 75 (25.8)
 Completed college 29 (10.0)
 Some graduate training 20 (6.9)
 Missing / Refused to Answer 10 (3.4)
Household Income
 Less than $15,000 69 (23.7)
 $15,000 to $29,999 83 (28.5)
 $30,000 to $49,999 36 (12.4)
 $50,000 to $99,999 18 (6.2)
 $100,000 or more 21 (7.2)
 Don't know 55 (18.9)
 Missing / Refused to Answer 9 (3.1)
Employment
 Homemaker 70 (24.1)
 Student 14 (4.8)
 Employed 119 (40.9)
 Temporary Medical Leave 5 (1.7)
 Unemployed 37 (12.7)
 Missing / Refused to Answer 46 (15.8)
Marital Status
 Married 77 (26.5)
 Living together 114 (39.2)
 Never married, single 58 (19.9)
 Divorced or separated 6 (2.1)
 Missing / Refused to Answer 36 (12.4)