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Roman, L., Raffo, J. E., Zhu, Q., & Meghea, C. (2014). A statewide Medicaid enhanced prenatal care program: Impact on birth outcomes. JAMA Pediatrics, 168(3), 220–227.

Manuscript screening details
Screening decision Screening conclusion HomVEE procedures and standards version
Passes screens Eligible for review Version 1
Study design details
Rating Design Attrition Baseline equivalence Compromised randomization Confounding factors Valid, reliable measure(s)
Moderate Non-experimental comparison group design Not applicable Established on race/ethnicity and SES; outcome(s) not feasible to assess at baseline None None Not assessed in manuscripts reviewed before 2021
Study characteristics
Study participants Administrative data for 60,653 pregnant women who had a Medicaid-insured singleton birth in 2010 were drawn from the Michigan Department of Community Health. Participants in the MIHP home-visiting model were propensity-score matched with non-participants on maternal demographic characteristics, pregnancy behaviors, and chronic disease incidence. At baseline, among the matched sample, 51 percent of mothers in MIHP identified as white and 39 percent identified as black. The average age of mothers was 25.5. Seventeen percent had incomes at or below 33 percent of the federal poverty level.
Setting The study took place across the state of Michigan.
Intervention services MIHP provides prenatal and postnatal home visiting to pregnant women and infants living in Michigan who are Medicaid beneficiaries. Participation is voluntary, and includes health risk screenings, care coordination, referrals to other services, and interventions that are tailored to the needs of each person. These interventions may address healthy pregnancies, positive birth outcomes, infant safety, and infant health and development.
Comparison conditions Pregnant women in the non-participant comparison group did not receive any MIHP services but had access to other resources offered through Medicaid.
Subgroups examined This field lists subgroups examined in the manuscript (even if they were not replicated in other samples and not reported on the summary page for this model’s report).
Subgroups are not listed for manuscripts reviewed before 2021.
Staff characteristics and training Registered nurses and licensed social workers delivered MIHP services.
Funding sources The study was funded in part by the Michigan Department of Community Health.
Author affiliation None of the study authors are developers of the MIHP model.
Peer reviewed Peer reviewed status is not listed for manuscripts reviewed before 2021.
Study Registration:

Clinicaltrials.gov Identifier: None found. Study registration was assessed by HomVEE beginning with the 2014 review.

Findings details

Child health
Rating Outcome measure Effect Sample Timing of follow-up Sample size Intervention group Comparison group Group difference Effect size Statistical significance Notes
Moderate Low birth weight (<2500g)
FavorableUnfavorable or ambiguousNo Effect
Full sample; Michigan Medicaid 2010 birth cohort Immediately post-intervention 32,088 infants Unadjusted proportion = 0.08 Unadjusted proportion = 0.09 OR = 0.91 HomeVEE calculated = -0.06 Statistically significant, p < 0.05

Effect size based on study OR

Submitted by barbara on Fri, 04/12/2019 - 18:55

HomVEE calculated the effect size based on the study-reported odds ratio.

Moderate Preterm birth (<37 weeks)
FavorableUnfavorable or ambiguousNo Effect
Full sample; Michigan Medicaid 2010 birth cohort Immediately post-intervention 32,088 infants Unadjusted proportion = 0.11 Unadjusted proportion = 0.12 OR = 0.91 HomeVEE calculated = -0.06 Statistically significant, p < 0.05

Effect size based on study OR

Submitted by barbara on Fri, 04/12/2019 - 18:55

HomVEE calculated the effect size based on the study-reported odds ratio.

Moderate Very low birth weight (<1500g)
FavorableUnfavorable or ambiguousNo Effect
Full sample; Michigan Medicaid 2010 birth cohort Immediately post-intervention 32,088 infants Unadjusted proportion = 0.01 Unadjusted proportion = 0.02 OR = 0.71 HomeVEE calculated = -0.21 Statistically significant, p < 0.05

Effect size based on study OR

Submitted by barbara on Fri, 04/12/2019 - 18:55

HomVEE calculated the effect size based on the study-reported odds ratio.

Moderate Very preterm birth (<32 weeks)
FavorableUnfavorable or ambiguousNo Effect
Full sample; Michigan Medicaid 2010 birth cohort Immediately post-intervention 32,088 infants Unadjusted proportion = 0.02 Unadjusted proportion = 0.03 OR = 0.80 HomeVEE calculated = -0.14 Statistically significant, p < 0.05

Effect size based on study OR

Submitted by barbara on Fri, 04/12/2019 - 18:55

HomVEE calculated the effect size based on the study-reported odds ratio.

Outcome measure summary

Child health
Outcome measure Description of measure Data collection method Properties of measure

Low birth weight (<2500g)

A binary indicator defined as birth weight less than 2500g.

Administrative birth certificate records

Not applicable

Preterm birth (<37 weeks)

A binary indicator defined as delivery before 37 complete weeks' gestation.

Administrative birth certificate records

Not applicable

Very low birth weight (<1500g)

A binary indicator defined as birth weight less than 1500g. Administrative birth certificate records

Not applicable

Very preterm birth (<32 weeks)

A binary indicator defined as delivery before 32 complete weeks' gestation.

Administrative birth certificate records

Not applicable