TABLE 4

RR Estimates for Impact of Random Assignment to DC on Infant EMC, ED Visits, and Hospital Overnights: Post Hoc Tests of Moderation (n = 531).

VariableBirth to 12-Month Total EMC6- to 12-Month Total EMCBirth to 12-Month ED VisitsBirth to 12-Month Hospital Overnights
RR95% CIRR95% CIRR95% CIRR95% CI
Treatment × birth risk
 No birth risks0.63***0.52–0.77
 1 or more birth risks0.23***0.15–0.33
Treatment × Medicaid or no insurance
 Private health insurance0.23***0.15–0.360.20***0.08–0.49
 Medicaid or no insurance0.61***0.51–0.730.910.69–1.21
Treatment × minority status
 Nonminority0.23***0.14–0.360.23***0.11–0.470.46*0.25–0.84
 Minority0.65***0.55–0.790.960.72–1.280.960.78–1.18
Treatment × single-parent status
 2-parent family0.51**0.34–0.770.22***0.14–0.36
 Single-parent family0.970.68–1.390.07***0.03–0.14
Treatment × infant gender
 Boys0.48***0.38–0.590.10***0.06–0.17
 Girls0.63***0.48–0.820.30***0.16–0.58
  • Dashes indicate moderator was not a significant overall predictor of outcome. CI, confidence interval; EMC, emergency medical care; RR, risk ratio. *P < .05; **P < .01; ***P < .001.