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. Author manuscript; available in PMC: 2020 Jul 29.
Published in final edited form as: Environ Res. 2019 Aug 7;176:108519. doi: 10.1016/j.envres.2019.05.050

Table 1.

Child, Maternal, and Household Characteristics of CCAAPS Participants (n = 344)

Characteristic Mean/n SD/%
Child Characteristics
 Age at 12y Study Visit (y) 12.2 0.8
 Female 153 44.5%
 Race/Ethnicity
  White 261 75.9%
  Black/More than One Race 83 24.1%
Maternal Characteristics
 IQ (Wechsler Abbreviated Scale of Intelligence (WASI-2) 105.2 13.3
 Depression (BDI-II) 6.4 4.0
 Age at Study Enrollment (years) 30.7 5.9
 Maternal Education at 12y Study Visit
  ≤ High School 72 21.6%
  Some College or Trade School 94 28.1%
  ≥ College Degree 168 50.3%
Household/Parenting Characteristics
  Household Income at enrollment
   < $20,000 58 17.4%
   $20,000 to < $40,000 54 16.2%
   $40,000 to < $70,000 96 28.8%
   $70,000 to < $90,000 89 26.7%
   > $90,000 36 10.8%
 Parent Relationship Questionnaire (PRQ) T-scores
  Attachment 52.2 9.6
  Communication 50.7 10.1
  Discipline Practices 48.3 10.4
  Involvement 52.3 11.3
  Parenting Confidence 51.4 9.5
  Relational Frustration 48.2 9.5
ECAT Exposure Measures
 Early Life ECAT at Birth Record Address (ug/m3) 0.39 0.14
 Current ECAT at 12y Study Visit (ug/m3) 0.37 0.12
 Average Childhood ECAT; Birth to 12y Study Visit (ug/m3) 0.38 0.10