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Table 2 Cohort demographic characteristics

From: Understanding multifactorial influences on the continuum of maternal weight trajectories in pregnancy and early postpartum: study protocol, and participant baseline characteristics

Demographic characteristics Mean SD Median Interquartile range
Age (years) 28.3 5.1 28 24-32
Gestational age @baseline study visit (weeks) 32.5 1.8 32.6 31.4-33.7
  N %*
Prepregnancy BMI (kg/m 2 ) (n = 110)   
   Underweight 1 0.9
   Normal 52 47.3
   Overweight 32 29.1
   Obese 25 22.7
Race (n = 93)   
   White 63 67.7
   Black/African American 7 7.5
   Asian 5 5.4
   Hawaiian/Pacific Islander 1 1.1
   Other 11 11.8
   Multiracial 6 6.5
Ethnicity (n = 99)   
   Not Hispanic, Latino or Spanish 71 71.7
   Hispanic, Latino or Spanish origin 28 28.3
Non-U.S. born (n = 99) 24 24.2
Non-English primary home language (n = 98) 16 15.5
Multigravida (n = 108) 75 69.4
Relationship   
   In relationship with father of baby (n = 98) 92 93.9
   Married (n = 99) 60 60.6
Education (n = 99)   
   ≤8th grade 2 2.0
   >8th grade, < high school 3 3.0
   High school graduate or GED 20 20.2
   Trade or technical school after HS 5 5.1
   Some college 25 25.3
   4 year college degree 23 23.2
   Other 21 21.2
Employment (n = 100)   
   Working full or part-time outside home 65 65.5
   Homemaker 15 15.0
Household ability to make ends meet (n = 100)   
   Great difficulty 12 12.0
   Some difficulty 36 36.0
   No difficulty 52 52.0
Location of care (n = 109)   
   Resident practice 34 31.2
   Faculty practice 75 68.9
  1. *Percentiles based on total number for whom data available and does not account for missingness.