Primary Care Quality Improvement Through Patient-Centered Medical Homes and the Impact on Emergency Department Utilization for Children With Autism and Mental Health Disorders.

BACKGROUND AND OBJECTIVES

To address health care spending growth, coordinated care, and patient-centered primary care, most states in the United States have adopted value-based care coordination programs such as patient-centered medical homes (PCMHs). The objective of this study was to understand the relationship between having access to PCMHs and emergency department (ED) utilization for high cost/need children with autism and children with mental health disorders (MHDs).

METHODS

This cross-sectional study included 87 723 children between ages 3 and 17 years in the 2016-2018 National Survey for Children's Health. Multivariate-adjusted logistic regression analyses were used to assess the association between ED and PCMH utilization for children with autism, with MHDs without autism, and others without autism or MHDs. Marginal predictions were used to examine whether PCMH utilization was moderated by health conditions.

RESULTS

The results showed that children with a PCMH had a 16% reduction in the odds to visit the ED (adjusted odds ratio [aOR] = 0.84; confidence interval [CI], 0.77-0.92; P < .001). When compared with the reference group of children without autism and without MHDs, children with MHDs but without autism had 93% higher odds to visit the ED (aOR = 1.93; CI, 1.75-2.13; P < .001) and children with autism had 35% higher odds to visit the ED (aOR = 1.35; CI, 1.04-1.75; P = .023). Marginal effects results suggested that PCMHs reduced the odds of ED visits the most for children with MHDs without autism and reduced the predicted ED visits from 30.1% to 23.7% ( P < .001).

CONCLUSIONS

Primary care quality improvement through access to a PCMH reduced ED visits for children, but the effect varied by autism and MHD conditions. Future PCMH efforts should continue to support children with autism and address unmet needs for children with MHDs with a focus on needed care coordination, family-centered care, and referrals.