Table 2

Data sources and outcome measures by study aim. Our retrospective, propensity score-matched observational study pulls data from four sources: HSP Database, VRBD, HDD, and ASIIS. Data were confined to 2006–2015, and serve to evaluate maternal and child health outcomes among at-risk, racially and ethnically diverse, rural and urban mothers and children of Arizona

Data source (years)Outcome measuresAim
Health Start Program Data
  • Intervention enrollment

  • Month prenatal care began

  • Total number of prenatal visits

1, 2, 3
Vital Records Birth Data
  • Preterm birth (gestational age)

  • Birth weight (birth weight, low birth weight <2500 g, very low birth weight <1500 g and small size for gestational age)

  • Month prenatal care began

  • Total number of prenatal visits

  • Method of delivery (first-time caesarean delivery)

  • Maternal morbidity (eg, uterine rupture)

  • Inter-pregnancy intervals

1 and 2
Hospital Discharge Data
  • Newborn hospital length of stay and 30-day hospital charges

  • Utilisation of emergency room (ER) visits and inpatient (IP) stays at age of 1, 3 and 5 years

  • Any charges associated with ER and IP utilisation

1 and 3
Arizona State Immunization Information System
  • Probability of a child being on schedule for immunisations