Implications of new insurance coverage for access to care, cost-sharing, and reimbursement

Examining Timeliness of Total Knee Replacement Among Patients with Knee Osteoarthritis in the U.S.: Results from the OAI and MOST Longitudinal Cohorts

BACKGROUND

Patients with knee osteoarthritis may undergo total knee replacement too early or may delay or underuse this procedure. We quantified these categories of total knee replacement utilization in 2 cohorts of participants with knee osteoarthritis and investigated factors associated with each category.

METHODS

Data were pooled from 2 multicenter cohort studies that collected demographic, patient-reported, radiographic, clinical examination, and total knee replacement utilization information longitudinally on 8,002 participants who had or were at risk for knee osteoarthritis and were followed for up to 8 years. Validated total knee replacement appropriateness criteria were longitudinally applied to classify participants as either potentially appropriate or likely inappropriate for total knee replacement. Participants were further classified on the basis of total knee replacement utilization into 3 categories: timely (indicating that the patient had total knee replacement within 2 years after the procedure had become potentially appropriate), potentially appropriate but knee not replaced (indicating that the knee had remained unreplaced for >2 years after the procedure had become potentially appropriate), and premature (indicating that the procedure was likely inappropriate but had been performed). Utilization rates were calculated, and factors associated with each category were identified.

RESULTS

Among 8,002 participants, 3,417 knees fulfilled our inclusion and exclusion criteria and were classified into 1 of 3 utilization categories as follows: 290 knees (8% of the total and 9% of the knees for which replacement was potentially appropriate) were classified as "timely", 2,833 knees (83% of the total and 91% of those for which replacement was potentially appropriate) were classified as "potentially appropriate but not replaced", and 294 knees (comprising 9% of the total and 26% of the 1,114 total knee replacements performed) were considered to be "likely inappropriate" yet underwent total knee replacement and were classified as "premature". Of the knees that were potentially appropriate but were not replaced, 1,204 (42.5%) had severe symptoms. Compared with the patients who underwent timely total knee replacement, the likelihood of being classified as potentially appropriate but not undergoing total knee replacement was greater for black participants and the likelihood of having premature total knee replacement was lower among participants with a body mass index of >25 kg/m and those with depression.

CONCLUSIONS

In 2 multicenter cohorts of patients with knee osteoarthritis, we observed substantial numbers of patients who had premature total knee replacement as well as of patients for whom total knee replacement was potentially appropriate but had not been performed >2 years after it had become potentially appropriate. Further understanding of these observations is needed, especially among the latter group.

CLINICAL RELEVANCE

Undergoing total knee replacement too early may result in little or no benefit while exposing the patient to the risks of a major operation, whereas waiting too long may cause limitations in physical activity that in turn increase the risk of additional disability and chronic disease; however, little is known about timing of this surgery. We quantified the extent of premature, timely, and delayed use, and found a high prevalence of both premature and delayed use.

The Use and Out-of-Pocket Cost of Urgent Care Clinics and Retail-Based Clinics by Adolescents and Young Adults Compared With Children

PURPOSE

We describe the use and out-of-pocket cost of urgent care clinics (UCCs) and retail-based clinics (RBCs) as ambulatory care alternatives to physician offices among children, adolescents, and young adults, and examine differences in use by age.

METHODS

Cross-sectional analysis describing diagnoses and out-of-pocket costs for 8.9 million UCC, RBC, and physician office encounters by privately insured child (aged <11 years), adolescent (aged 11-18 years), and young adult (aged 19-30 years) beneficiaries in a U.S. national administrative data set from January to June 2013. We calculate relative odds (RO) of UCC and RBC utilization by adolescents and young adults, using physician office encounters and children as reference groups.

RESULTS

UCC (n = 286,144) and RBC (n = 89,903) visits were <5% of encounters. Upper respiratory infections were the most common diagnosis at UCCs (children 25.2%, adolescents 27.3%, young adults 26.5%) and RBCs (38.1%, 44.1%, 42.0%). The mean out-of-pocket cost was higher for UCCs (children +$38, adolescents +$29, young adults +$25) and lower for RBCs (-$4, -$15, -$18) compared with physician office encounters. For adolescents, the adjusted relative probability of UCC or RBC versus physician office encounters was 9% higher (RO = 1.09, 95% confidence interval [CI] = 1.08-1.10) and 31% higher (RO = 1.31, 95% CI = 1.29-1.34), respectively, compared with children. For young adults, the adjusted relative probability of a UCC or RBC encounter was 54% (RO = 1.54, 95% CI = 1.52-1.55) and 68% (RO = 1.68, 95% CI = 1.65-1.71) higher, respectively.

CONCLUSIONS

Adolescents and young adults were more likely to visit RBCs and UCCs than children. Understanding of UCC and RBC use, cost, and quality of care is needed to inform policies on their roles in health care.

Common and Costly Hospitalizations Among Insured Young Adults Since the Affordable Care Act

PURPOSE

To describe the most prevalent and costly inpatient hospitalizations in a national cohort of privately insured young adults since the Affordable Care Act.

METHODS

Cross-sectional study of a national administrative data set of privately insured young adult (18-30 years) beneficiaries hospitalized from January 2012 to June 2013. The most prevalent diagnosis categories for young adult hospitalizations are presented as percentages of all young adult hospitalizations by gender and age group (18-21, 22-25, and 26-30 years). Mean and median out-of-pocket costs by diagnosis category and gender are calculated based on deductible, copay and coinsurance payments.

RESULTS

We analyzed 158,777 hospitalizations among 4.7 million young adult beneficiaries; young adults accounted for 18.3% of privately insured hospitalizations across all ages. Top diagnoses for young adult female hospitalizations were pregnancy related (71.9%) and mental illness (8.9%). Top diagnoses for young adult male hospitalizations were mental illness (39.3%) and injuries and poisoning (14.0%). Mean and median total out-of-pocket costs for any young adult hospitalization were $1,034 and $700, respectively (mean deductible payment = $411). The most expensive out-of-pocket hospitalizations were for dermatologic diseases (e.g., skin infections) with means of $1,306 for females and $1,287 for males.

CONCLUSIONS

This study establishes a baseline for the ongoing assessment of the most common and costly hospitalizations among privately insured young adults in the United States under the Affordable Care Act. The substantial burden of potentially avoidable hospitalizations (e.g., mental health, injury, and poisonings) supports resource allocation to improve outpatient services, mental health access, and public health prevention strategies for young adults.

Implications for informatics given expanding access to care for Veterans and other populations

Recent investigations into appointment scheduling within facilities operated by the US Department of Veterans Affairs (VA) illuminate systemic challenges in meeting its goal of providing timely access to care for all Veterans. In the wake of these investigations, new policies have been enacted to expand access to care at VA facilities as well as non-VA facilities if the VA is unable to provide access within a reasonable timeframe or a Veteran lives more than 40 miles from a VA medical facility. These policies are similar to broader health reform efforts that seek to expand access to care for other vulnerable populations. In this perspective, we discuss the informatics implications of expanded access within the VA and its wider applicability across the US health system. Health systems will require robust health information exchange, to maintain coordination while access to care is expanded. Existing informatics research can guide short-term implementation; furthermore, new research is needed to generate evidence about how best to achieve the long-term aim of expanded access to care.