Acute care utilization for ambulatory care-sensitive conditions among publicly insured children

BACKGROUND

Although characteristics of preventable hospitalizations for ambulatory care-sensitive conditions (ACSCs) have been described, less is known about patterns of emergency and other acute care utilization for ACSCs among children who are not hospitalized. We sought to describe patterns of utilization for ACSCs according to the initial site of care and to determine characteristics associated with seeking initial care in an acute care setting rather than in an office. A better understanding of the sequence of health care utilization for ACSCs may inform efforts to shift care for these common conditions to the medical home.

METHODS

We performed a retrospective analysis of pediatric encounters for ACSCs between 2017 and 2019 using data from the IBM Watson MarketScan Medicaid database. The database includes insurance claims for Medicaid-insured children in 10 anonymized states. We assessed the initial sites of care for ACSC encounters, which were defined as either acute care settings (emergency or urgent care) or office-based settings. We used generalized estimating equations clustered on patient to identify associations between encounter characteristics and the initial site of care.

RESULTS

Among 7,128,515 encounters for ACSCs, acute care settings were the initial site of care in 27.9%. Diagnoses with the greatest proportion of episodes presenting to acute care settings were urinary tract infection (52.0% of episodes) and pneumonia (44.6%). Encounters on the weekend (adjusted odds ratio [aOR] 6.30, 95% confidence interval [CI] 6.27-6.34 compared with weekday) and among children with capitated insurance (aOR 1.55, 95% CI 1.54-1.56 compared with fee for service) were associated with increased odds of seeking care first in an acute care setting.

CONCLUSIONS

Acute care settings are the initial sites of care for more than one in four encounters for ACSCs among publicly insured children. Expanded access to primary care on weekends may shift care for ACSCs to the medical home.

Outcomes for Long-Stay Nursing Facility Residents Following On-Site Acute Care under a CMS Initiative

OBJECTIVES

The goal of this study was to describe outcomes of long-term nursing facility (NF) residents treated for one of 6 conditions on-site in the NF and to compare outcomes to those treated for the same conditions in the hospital.

DESIGN

Cross-sectional retrospective study.

SETTINGS AND PARTICIPANTS

The Centers for Medicare & Medicaid Services (CMS) Initiative to Reduce Avoidable Hospitalizations among Nursing Facility Residents-Payment Reform enabled participating NFs to bill Medicare for providing on-site care to eligible long-stay residents meeting specified severity criteria due to any of 6 medical conditions, as an alternative to hospitalization. For billing purposes, residents were required to meet clinical criteria severe enough to warrant hospitalization.

METHODS

We used the Minimum Data Set assessments to identify eligible long-stay NF residents. We used Medicare data to identify residents who were treated, either on-site or in the hospital, for the 6 conditions and measure outcomes including subsequent hospitalization and death. To compare residents treated in the 2 modes, we used logistic regression models and adjusted for demographics, functional and cognitive status, and comorbidities.

RESULTS

Among residents treated on-site for the 6 conditions, 13.6% were subsequently hospitalized and 7.8% died, within 30 days, compared to 26.5% and 17.0%, respectively, among those treated in the hospital. Based on multivariate analysis, those treated in the hospital were more likely to be readmitted (OR = 1.666, P < .001) or to die (OR = 2.251, P < .001).

CONCLUSIONS AND IMPLICATIONS

Although unable to fully account for differences in unobserved severity of illness between residents treated on-site vs in the hospital, our results do not indicate any harm, but rather a possible benefit, to being treated on-site.

Reducing Acute Hospitalizations at High-Performing CPC+ Primary Care Practice Sites: Strategies, Activities, and Facilitators

PURPOSE

Despite evidence suggesting that high-quality primary care can prevent unnecessary hospitalizations, many primary care practices face challenges in achieving this goal, and there is little guidance identifying effective strategies for reducing hospitalization rates. We aimed to understand how practices in the Comprehensive Primary Care Plus (CPC+) program substantially reduced their acute hospitalization rate (AHR) over 2 years.

METHODS

We used Bayesian analyses to identify the CPC+ practice sites having the highest probability of achieving a substantial reduction in the adjusted Medicare AHR between 2016 and 2018 (referred to here as AHR high performers). We then conducted telephone interviews with 64 respondents at 14 AHR high-performer sites and undertook within- and cross-case comparative analysis.

RESULTS

The 14 AHR high performers experienced a 6% average decrease (range, 4% to 11%) in their Medicare AHR over the 2-year period. They credited various care delivery activities aligned with 3 strategies for reducing AHR: (1) improving and promoting prompt access to primary care, (2) identifying patients at high risk for hospitalization and addressing their needs with enhanced care management, and (3) expanding the breadth and depth of services offered at the practice site. They also identified facilitators of these strategies: enhanced payments through CPC+, prior primary care practice transformation experience, use of data to identify high-value activities for patient subgroups, teamwork, and organizational support for innovation.

CONCLUSIONS

The AHR high performers observed that strengthening the local primary care infrastructure through practice-driven, targeted changes in access, care management, and comprehensiveness of care can meaningfully reduce acute hospitalizations. Other primary care practices taking on the challenging work of reducing hospitalizations can learn from CPC+ practices and may consider similar strategies, selecting activities that fit their context, personnel, patient population, and available resources.

Outpatient Visits Before Ambulatory Care-Sensitive Hospitalization of Children Receiving Medicaid

OBJECTIVES

Hospitalizations for ambulatory care-sensitive conditions (ACSC) are measured to indicate health care system quality, with the premise that fewer hospitalizations would occur with better preceding outpatient care. Our objectives were to identify outpatient care received in the 7 days preceding acute pediatric hospitalizations and to compare receipt of outpatient care by hospitalization type (ACSC vs non-ACSC).

METHODS

This retrospective observational study used a 10-state database of Medicaid claims to identify outpatient visits within 7 days before acute unplanned hospitalization for children aged 0 to 17 years. We used logistic regression to assess the relationship between hospitalization type and occurrence of a preceding outpatient clinic visit, controlling for patient age, race/ethnicity, type of Medicaid, and complex chronic conditions.

RESULTS

Of 254,902 hospitalizations, 28.6% had a preceding outpatient visit. Thirty-five percent of hospitalizations were for ACSC. A greater percentage of ACSC versus non-ACSC hospitalizations had a preceding outpatient visit (31.1% vs 27.3%, P < .001). In multivariable analysis, characteristics associated with a preceding outpatient visit were age <1 versus 13 to 17 years (adjusted odds ratio [aOR] 2.4; 95% confidence interval [CI] 2.3-2.5), ≥2 vs 0 complex chronic conditions (aOR 1.9; 95% CI 1.8-2.0), Medicaid managed care versus fee for service (aOR 1.2; 95% CI 1.2-1.3), and ACSC versus non-ACSC hospitalization (aOR 1.2; 95% CI 1.1-1.2).

CONCLUSIONS

Although receipt of outpatient care was modestly higher in children hospitalized with an ACSC, most hospitalized children did not receive preceding outpatient care. Further investigation is needed to assess why such a large proportion of children do not receive outpatient care before acute unplanned hospitalization, especially for ACSC.