Ambulatory Care Sensitive Research Articles

Racial Disparities in Chronic Conditions Outcomes in Primary Care Settings: Between- Versus Within-Practice Differences

Racial disparities in chronic condition management lead to adverse outcomes such as increased emergency department (ED) visits and hospitalizations among minority patients. These disparities may arise from differences within or between primary care practices, but limited research has explored these disparities. To examine racial/ethnic disparities in chronic condition outcomes in primary care and determine if they are due to between- versus within-practice differences. We analyzed 2018 Medicare claims data for beneficiaries visiting primary care practices during 2018 to 2019. We used logistic regression models to assess racial and ethnic disparities in outcomes and the contribution of between- versus within- practice differences to the disparities. 1033 primary care practices in Arizona, California, New Jersey, Pennsylvania, Texas, and Washington. Medicare beneficiaries aged 65+ with one of the chronic conditions attributed to primary care practices. All-cause ED visits, ambulatory care sensitive (ACS) ED visits, and all-cause hospitalizations among older adults with specific chronic conditions (asthma, chronic obstructive pulmonary disease, hypertension, congestive heart failure, cardiovascular disease, and diabetes). Black patients were more likely to experience ED visits (Predicted probability: .371, 95% Confidence Interval (CI): 0.362-0.380), and ACS ED visits (Predicted probability: .248, CI: 0.241-0.256) but less likely to experience hospitalizations (Predicted probability: .124, CI: 0.116-0.133), compared to White patients. Hispanic patients showed similar trends in ED visits (Predicted probability: .357, CI: 0.350-0.365) and ACS ED visits (Predicted probability: .233, CI: 0.227-0.239). Minority patients were clustered within a small number of practices (Black: 50% in 6% of practices, Hispanic: 50% in 8% of practices). Disparities in ED visits and hospitalizations were largely explained by within-practice differences. As disparities primarily originate from within-practice differences, addressing racial and ethnic disparities requires improving care quality across all practices rather than targeting those with high proportions of minorities.

ASSOCIATION BETWEEN PROVIDER DISCONTINUITY AND QUALITY OF CARE FOR NURSING HOME RESIDENTS

Abstract Discontinuity in outpatient care has been associated with lower quality care in community settings, but little is known about discontinuity of care in nursing homes (NHs). We examined discontinuity in clinician care and care quality for NH residents using Medicare fee-for-service claims for a 20% national sample of beneficiaries (January 1, 2012 to December 31, 2019). For residents with NH stays of ≥2 years, we examined changes in attributed clinicians during the first two years of their stays. Residents were attributed to the physician or advanced practitioner with a plurality of visits provided to them in the NH in a given year. Estimates were adjusted for resident, clinician, and NH characteristics. The determinant of interest reflected whether there was a change in the attributed clinician from the first to the second year. Among 280,831 residents in our sample, 37.6% (105,551) were attributed to a different clinician in their second year. On a quarterly basis, these residents had a 0.2 percentage point [pp] (95%CI, 0.2-0.3; p-value <.001) higher likelihood of an ambulatory care sensitive (ACS) hospitalization, a 0.2 pp (95% CI, 0.1-0.3; p-value <.001) higher likelihood of an ACS emergency department (ED) visit, and $609 (95% CI, $548.4-$669.5; p-value <.001) higher health care costs in their second year compared to residents without a clinician change. Compared to baseline rates, these represent relative increases of 14.2% in ACS hospitalizations, 11.5% in ACS ED visits, and 8% in costs. Discontinuity in care is associated with lower-quality care for NH residents.

Testing dental quality measures: Emergency department visits for nontraumatic dental conditions and subsequent follow-up dental visits

BackgroundThe goal of this study was to test the feasibility, reliability, and validity of the Dental Quality Alliance’s adult dental quality measures for system-level implementation for ambulatory care sensitive (ACS) emergency department (ED) visits for nontraumatic dental conditions (NTDCs) in adults and follow-up after ED visits for NTDCs in adults. MethodsMedicaid enrollment and claims data from Oregon and Iowa were used for measure testing. Testing included validation of diagnosis codes in claims data through patient record reviews of ED visits and calculations of κ statistic, sensitivity, and specificity. ResultsAdult Medicaid enrollees’ ACS NTDC ED visits ranged from 209 through 310 per 100,000 member-months. In both states, patients in the age category 25 through 34 years and non-Hispanic Black patients had the highest rates of ACS ED visits for NTDCs. Only one-third of all ED visits were associated with a follow-up dental visit within 30 days, decreasing to approximately one-fifth with a 7-day follow-up. The agreement between the claims data and patient records for identification of ACS ED visits for NTDCs was 93%, κ statistic was 0.85, sensitivity was 92%, and specificity was 94%. ConclusionsTesting revealed the feasibility, reliability, and validity of 2 DQA quality measures. Most beneficiaries did not have a follow-up with a dentist within 30 days of an ED visit. Practical ImplicationsAdoption of quality measures by state Medicaid programs and other integrated care systems will enable active tracking of beneficiaries with ED visits for NTDCs and develop strategies to connect them to dental homes.

Primary Care Nurse Practitioner Work Environments and Hospitalizations and ED Use Among Chronically Ill Medicare Beneficiaries.

Nurse practitioners (NPs) play a critical role in delivering primary care, particularly to chronically ill elderly. Yet, many NPs practice in poor work environments which may affect patient outcomes. We investigated the relationship between NP work environments in primary care practices and hospitalizations and emergency department (ED) use among chronically ill elderly. We used a cross-sectional design to collect survey data from NPs about their practices. The survey data were merged with Medicare claims data. In total, 979 primary care practices employing NPs and delivering care to chronically ill Medicare beneficiaries (n=452,931) from 6 US states were included. NPs completed the Nurse Practitioner-Primary Care Organizational Climate Questionnaire-a valid and reliable measure for work environment. Data on hospitalizations and ED use was obtained from Medicare claims. We used Cox regression models to estimate risk ratios. After controlling for covariates, we found statistically significant associations between practice-level NP work environment and 3 outcomes: Ambulatory Care Sensitive (ACS) ED visits, all-cause ED visits, and all-cause hospitalizations. With a 1-unit increase in the work environment score, the risk of an ACS-ED visit decreased by 4.4% [risk ratio (RR)=0.956; 99% confidence interval (CI): 0.918-0.995; P=0.004], an ED visit by 3.5% (RR=0.965; 99% CI: 0.933-0.997; P=0.005), and a hospitalization by 4.0% (RR=0.960;99% CI: 0.928-0.993; P=0.002). There was no relationship between NP work environment and ACS hospitalizations. Favorable NP work environments are associated with lower hospital and ED utilization. Practice managers should focus on NP work environments in quality improvement strategies.

Association of Private Equity Investment in US Nursing Homes With the Quality and Cost of Care for Long-Stay Residents

Private equity firms have been acquiring US nursing homes; an estimated 5% of US nursing homes are owned by private equity firms. To examine the association of private equity acquisition of nursing homes with the quality and cost of care for long-stay residents. In this cohort study of 302 private equity nursing homes with 9632 residents and 9562 other for-profit homes with 249 771 residents, a novel national database of private equity nursing home acquisitions was merged with Medicare claims and Minimum Data Set assessments for the period from 2012 to 2018. Changes in outcomes for residents in private equity-acquired nursing homes were compared with changes for residents in other for-profit nursing homes. Analyses were performed from March 25 to June 23, 2021. Private equity acquisitions of 302 nursing homes between 2013 and 2017. This study used difference-in-differences analysis to examine the association of private equity acquisition of nursing homes with outcomes. Primary outcomes were quarterly measures of emergency department visits and hospitalizations for ambulatory care-sensitive (ACS) conditions and total quarterly Medicare costs. Antipsychotic use, pressure ulcers, and severe pain were examined in secondary analyses. Of the 259 403 residents in the study (170 687 women [65.8%]; 211 154 White residents [81.4%]; 204 928 residents [79.0%] dually eligible for Medicare and Medicaid; mean [SD] age, 79.3 [5.6] years), 9632 residents were in 302 private equity-acquired nursing homes and 249 771 residents were in 9562 other for-profit homes. The mean quarterly rate of ACS emergency department visits was 14.1% (336 072 of 2 383 491), and the mean quarterly rate of ACS hospitalizations was 17.3% (412 344 of 2 383 491); mean (SD) total quarterly costs were $8050.00 ($9.90). Residents of private equity nursing homes experienced relative increases in ACS emergency department visits of 11.1% (1.7 of 15.3; 1.7 percentage points; 95% CI, 0.3-3.0 percentage points; P = .02) and in ACS hospitalizations of 8.7% (1.0 of 11.5; 1.0 percentage point; 95% CI, 0.2-1.1 percentage points; P = .003) compared with residents in other for-profit homes; quarterly costs increased 3.9% (270.37 of 6972.04; $270.37; 95% CI, $41.53-$499.20; P = .02) or $1081 annually per resident. Private equity acquisition was not significantly associated with antipsychotic use (-0.2 percentage points; 95% CI, -1.7 to 1.4 percentage points; P = .83), severe pain (0.2 percentage points; 95% CI, -1.1 to 1.4 percentage points; P = .79), or pressure ulcers (0.5 percentage points; 95% CI, -0.4 to 1.3 percentage points; P = .30). This cohort study with difference-in-differences analysis found that private equity acquisition of nursing homes was associated with increases in ACS emergency department visits and hospitalizations and higher Medicare costs.

Primary care visits and ambulatory care sensitive diabetes hospitalizations among adult Alabama Medicaid beneficiaries

PurposeTo describe patterns of care use for Alabama Medicaid adult beneficiaries with diabetes and the association between primary care utilization and ambulatory care sensitive (ACS) diabetes hospitalizations. MethodsThis retrospective cohort study analyzes Alabama Medicaid claims data from January 2010 to April 2018 for 52,549 covered adults ages 19–64 with diabetes. Individuals were characterized by demographics, comorbidities, and health care use including primary, specialty, mental health and hospital care. Characteristics of those with and without any ACS diabetes hospitalization are reported. A set of 118,758 observations was created, pairing information on primary care use in one year with ACS hospitalizations in the following year. Logistic regression analysis was used to assess the impact of primary care use on the occurrence of an ACS hospitalization. ResultsOne third of the cohort had at least one ACS diabetes hospitalization over their observed periods; hospital users tended to have multiple ACS hospitalizations. Hospital users had more comorbidities and pharmaceutical and other types of care use than those with no ACS hospitalizations. Controlling for other types of care use, comorbidities and demographics, having a primary care visit in one year was significantly associated with a reduced likelihood of ACS hospitalization in the following year (odds ratio comparing 1–2 visits versus none 0.79, 95% confidence interval 0.73–0.85). ConclusionsProgram and population health interventions that increase access to primary care can have a beneficial effect of reducing excess inpatient hospital use for Medicaid covered adults with diabetes.

Comparative 4-year risk and type of hospital admission among homeless and housed emergency department attendees: longitudinal study of hospital records in England 2013–2018

ObjectivesPeople experiencing homelessness are frequent users of secondary care. Currently, there is no study of potentially preventable admissions for homeless patients in England. We aim to estimate the number of...

An observational cohort study of numbers and causes of preventable general hospital admissions in people with and without intellectual disabilities in England.

Hospital admissions for preventable reasons [ambulatory care sensitive (ACS) conditions] can indicate gaps in access to or quality of primary care. This paper seeks to document the numbers and causes of these admissions in England for people with intellectual disabilities (ID) compared with those without. Observational cohort study of number and duration of emergency admitted patient episodes for ACS conditions, overall and by cause, using the Clinical Practice Research Datalink GOLD primary care database and the linked Hospital Episode Statistics Admitted Patient Care dataset. The study covered 5.2% of the population of England from April 2010 to March 2014 giving a total population base of 59280 person-years for people with ID and 11103910 for people without identified ID. The rate of emergency admissions for ACS conditions for people with ID was 77.5 per 1000 person-years. As a crude comparison, this was 3.0 times the rate for those without ID, but standardising for the distinct demography of this group, the number of episodes was 4.8 times that expected if they had the same age-specific and sex-specific rates. Stay durations for these episodes were longer for both young-age and working-age people with ID. Overall people with ID used 399.8 bed-days per 1000 person-years. As a crude comparison, this is 2.8 times the figure for people without ID. Standardising for their age and sex profile, it is 5.4 times the number expected if they had the same age-specific and sex-specific rates. For patients with ID, 16.6% (one in six) of all admitted patient episodes and 24.3% (one in four) of in-patient care days for people with ID were for ACS conditions. Corresponding figures for those without ID were 8.3% (one in 12) and 14.4% (one in seven). The difference in rates between those with and without ID was most marked in people of working age. The three most common causes of emergency episodes for ACS conditions in people with ID were convulsions and epilepsy, influenza pneumonia and aspiration pneumonitis. Influenza pneumonia was also a common cause for people without ID. Episodes for convulsions and epilepsy and aspiration pneumonitis were specifically associated with people with ID. Rates of hospital admissions for ACS conditions provide an important indicator of health literacy, basic self-care (or support by carers) and the accessibility of primary care. High rates are seen for some conditions specifically associated with premature death in people with ID. Local monitoring of these figures could be used to indicate the effectiveness of local primary health services in providing support to people with ID.

Impact of the Affordable Care Act Medicaid Expansion on Access to Care and Hospitalization Charges for Lupus Patients.

To examine the impact of the Affordable Care Act on preventable hospitalizations and associated charges for patients living with systemic lupus erythematosus, before and after Medicaid expansion. A retrospective, quasi-experimental study, using an interrupted time series research design, was conducted to analyze data for 8 states from the Healthcare Cost and Utilization Project state inpatient databases. Lupus hospitalizations with a principal diagnosis of predetermined ambulatory-care sensitive (ACS) conditions were the unit of primary analysis. The primary outcome variable was access to care measured by preventable hospitalizations caused by an ACS condition. There were 204,150 lupus hospitalizations in the final analysis, with the majority (53.5%) of lupus hospitalizations in states that did not expand Medicaid. In unadjusted analysis, Medicaid expansion states had significantly lower odds of having preventable lupus hospitalizations (odds ratio [OR] 0.958); however, after adjusting for several covariates, Medicaid expansion states had increased odds of having preventable lupus hospitalizations (OR 1.302). Adjusted analysis showed that those individuals with increased age, public insurance (Medicare or Medicaid), no health insurance, rural residence, or low income had significantly higher odds of having a preventable lupus hospitalization. States that expanded Medicaid had $523 significantly more charges than states that did not expand Medicaid. Older age and rural residence were associated with significantly higher charges. Our findings suggest that while Medicaid expansion increased health insurance coverage, it did not address other issues related to access to care that could reduce the number of preventable hospitalizations.

Effects of introducing a walk-in clinic on ambulatory care sensitive hospitalisations among asylum seekers in Germany: a single-centre pre–post intervention study using medical records

ObjectiveMeasuring the effect of introducing a walk-in clinic on ambulatory care sensitive (ACS) hospitalisations among asylum seekers in a large state reception- and registration centre.Design and settingPre–post intervention study using...

1655-P: Primary Care Visits and Ambulatory Care Sensitive Diabetes Hospitalizations among Adult Alabama Medicaid Beneficiaries

Objective: To describe patterns of care use for adult Medicaid beneficiaries with diabetes and the association between primary care utilization and Ambulatory Care Sensitive (ACS) diabetes hospitalizations. Methods: This retrospective cohort study analyzes Alabama Medicaid claims data from January 2010 to April 2018 for 52,549 covered adults ages 19 to 64 with diabetes. Individuals were characterized by demographics, comorbidities, and health care use including primary, specialty, mental health, pharmaceutical, laboratory and hospital care. Characteristics of those with and without any ACS diabetes hospitalization are reported. A set of 118,758 observations was created, pairing information on primary care use in one year with ACS hospitalizations in the following year. Logistic regression analysis was used to assess the impact of primary care use in one year on the occurrence of an ACS hospitalization in the following year. Results: One third of the cohort had at least one ACS diabetes hospitalization over their observed periods; hospital users tended to have multiple ACS hospitalizations. Hospital users had more comorbidities and pharmaceutical and other types of care use than those with no ACS hospitalizations. Controlling for other types of care use, comorbidities and demographics, having a primary care visit in one year was significantly associated with a reduced likelihood of ACS hospitalization in the following year (adjusted odds ratio comparing 1-2 primary care visits versus none 0.79, 95% confidence interval 0.73-0.85). Conclusions: Program and population health interventions that increase access to primary care can have a beneficial effect of reducing excess inpatient hospital use for Medicaid covered adults with diabetes. Disclosure J.M. Bronstein: None. L. Huang: None. A.A. Agne: None. F.L. Mondesir: None. C.A. Presley: None. K.R. Riggs: None. M. Pisu: None. E.B. Levitan: Consultant; Self; Novartis Pharmaceuticals Corporation. Research Support; Self; Amgen Inc. A. Cherrington: None. Funding National Institute of Diabetes and Digestive and Kidney Diseases

Ambulatory Care Sensitive Admissions in Individuals With Autism Spectrum Disorder, Intellectual Disability, and Population Controls.

Ambulatory care sensitive (ACS) admissions are those for which effective primary care can prevent the need for emergency department (ED) visits and inpatient hospitalizations, and are an indicator of primary care access. Individuals with autism spectrum disorder (ASD) and/or intellectual disability (ID) may be at higher risk for ACS admissions than individuals in the general population due to difficulty accessing primary care. The objective of this study was to compare the incidence of ACS admissions among four cohorts of individuals aged 2-24 years: ASD without co-occurring ID (ASD-only), ASD with co-occurring ID (ASD + ID), ID without ASD (ID-only), and population controls (PC). Data from ED visits and inpatient hospitalizations occurring between January 1, 2000 and December 31, 2015 were examined to identify ACS admissions. Generalized linear models were used to examine differences between cohorts on the number of ACS ED visits and inpatient hospitalizations. Results revealed the ASD + ID and ID-only cohorts had significantly higher rates of ACS inpatient hospitalizations than the PC cohort. Additionally, the ID-only cohort had higher rates of ACS ED visits than the PC cohort. The ASD-only and PC cohorts did not differ on incidence of ACS admissions. These findings suggest that presence of an ID with or without co-occurring ASD increased the risk for ACS inpatient hospitalizations, and presence of ID-only increased the risk for ACS ED visits. Future work should examine trajectories of ACS admissions over time and consider inclusion of additional characteristics that may elucidate reasons for differences in ACS admissions among these groups. Autism Res 2019, 12: 295-302 © 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Preventable hospitalizations are a common indicator of problems with access to quality primary healthcare. Findings of this study suggest that individuals with intellectual disability, with or without autism spectrum disorder, have higher rates of preventable hospitalizations than the general population. Further research is needed to understand how to improve access to primary care and reduce preventable hospitalizations for this vulnerable population.

Impact of preventive primary care on children\u2019s unplanned hospital admissions: a population-based birth cohort study of UK children 2000\u20132013

BackgroundUniversal health coverage (UHC) aims to improve child health through preventive primary care and vaccine coverage. Yet, in many developed countries with UHC, unplanned and ambulatory care sensitive (ACS) hospital admissions in childhood continue to rise. We investigated the relation between preventive primary care and risk of unplanned and ACS admission in children in a high-income country with UHC.MethodsWe followed 319,780 children registered from birth with 363 English practices in Clinical Practice Research Datalink linked to Hospital Episodes Statistics, born between January 2000 and March 2013. We used Cox regression estimating adjusted hazard ratios (HR) to examine subsequent risk of unplanned and ACS hospital admissions in children who received preventive primary care (development checks and vaccinations), compared with those who did not.ResultsOverall, 98% of children had complete vaccinations and 87% had development checks. Unplanned admission rates were 259, 105 and 42 per 1000 child-years in infants (aged < 1 year), preschool (1–4 years) and primary school (5–9 years) children, respectively.Lack of preventive care was associated with more unplanned admissions. Infants with incomplete vaccination had increased risk for all unplanned admissions (HR 1.89, 1.79–2.00) and vaccine-preventable admissions (HR 4.41, 2.59–7.49). Infants lacking development checks had higher risk for unplanned admission (HR 4.63, 4.55–4.71). These associations persisted across childhood. Children who had higher consulting rates with primary care providers also had higher risk of unplanned admission (preschool children: HR 1.17, 1.17–1.17). One third of all unplanned admissions (62,154/183,530) were for ACS infectious illness. Children with chronic ACS conditions, asthma, diabetes or epilepsy had increased risk of unplanned admission (HR 1.90, 1.77–2.04, HR 11.43, 8.48–15.39, and HR 4.82, 3.93–5.91, respectively). These associations were modified in children who consulted more in primary care.ConclusionsA high uptake of preventive primary care from birth is associated with fewer unplanned and ACS admissions in children. However, the clustering of poor health, a lack of preventive care uptake, and social deprivation puts some children with comorbid conditions at very high risk of admission. Strengthening immunisation coverage and preventive primary care in countries with poor UHC could potentially significantly reduce the health burden from hospital admission in children.

Preventable hospitalizations, barriers to care, and disability.

The AHRQ's Prevention Quality Indicators assume inpatient hospitalizations for certain conditions, referred as ambulatory-care sensitive (ACS) conditions, are potentially preventable and may indicate reduced access to and a lower quality of ambulatory care. Using a cohort drawn from the Medicare Current Beneficiary Survey (MCBS) linked to Medicare claims, we examined the extent to which barriers to healthcare are associated with ACS hospitalizations and related costs, and whether these associations differ by beneficiaries’ disability status. Our results indicate that the regression-adjusted cost of ACS hospitalizations for elderly Medicare beneficiaries with no disabilities was $799. This cost increased six-fold, by $5148, among beneficiaries with mild disability, by $9045 for beneficiaries with moderate disability, by $5513 for those with severe disability, and by $8557 for persons with complete disability (P < 0.001). Persons reporting having foregone or delayed needed medical care because of financial difficulties (+$2082, P = .05), those experiencing low satisfaction with care coordination (+$1714, P = .01), and those reporting low satisfaction with access to care (+$1237, P = .02) also incurred significant excess ACS hospitalization costs relative to persons reporting no such barriers. This pattern held true for those with and without a disability, but were especially marked among persons with no functional limitations. These findings suggest that a better understanding of how public policy might effectively improve care coordination and reduce financial barriers to care is essential to formulating programs that reduce excess hospitalizations among the large and growing number of elderly Medicare beneficiaries.

Ambulatory care sensitive chronic conditions: what can we learn from patients about the role of primary health care in preventing admissions?

Developing and targeting interventions to reduce hospital admissions for ambulatory care sensitive (ACS) chronic conditions for older people is a key focus for improvement of the health system. To do this, an understanding of any modifiable factors that may contribute to such admissions is needed. To date, the literature on ACS admissions has rarely included the patient perspective. This qualitative study involved one-to-one telephone interviews with 24 patients aged ≥45 years who had had an unplanned admission for an ACS chronic condition to one of two participating regional hospitals between February and August 2015. Data were transcribed and analysed thematically. Most participants did not perceive their admission to be preventable, yet they described a series of interlinking factors, which may have contributed to their admission and which may offer potential points of leverage. Key interlinked themes interpreted were: 'support deficits', 'non-adherence to treatment' (including medication), 'mental health' and 'lack of awareness or understanding of condition'. Improving system-, clinician- and patient-level factors within a framework of appropriately resourced and supported comprehensive primary health care that is accessible, affordable, holistic, practical and evidence-based may contribute to improving patients' quality of life and to delaying or preventing hospital admission.

Hospitalizations for Ambulatory Care-Sensitive Conditions among Children with Chronic and Complex Diseases

To evaluate ambulatory-care sensitive (ACS) hospitalizations for children with noncomplex chronic diseases (NC-CD) and children with medical complexity (CMC), and identify associations with ambulatory care characteristics. Although ACS hospitalizations are potentially preventable in general populations, the specific ambulatory care predictors and influence of medical complexity on them is poorly understood. Retrospective cohort study of NC-CD and CMC hospitalizations at a children's hospital during 2007-2014, excluding labor/delivery and children over 21 years. Pediatric medical complexity algorithm identified NC-CD or CMC. ACS hospitalizations were identified using Agency for Healthcare Research and Quality indicator definitions. Demographic and ambulatory care characteristics were compared between ACS and non-ACS hospitalizations with logistic regression clustered by patient. Measures of ambulatory care during 2 years before admission were explored with 20% random sample of general pediatrics discharges. Among 4035 children with NC-CD, 14.6% of 4926 hospitalizations were ACS hospitalizations. Among 5084 CMC, 5.3% of 14 390 discharges were ACS hospitalizations. Among NC-CD discharges, ACS hospitalizations were more likely with no prior-year outpatient visits (OR 1.4, 95% CI 1.1-1.7) and less likely with timely well checks (OR 0.8, 95% CI 0.6-0.9) and phone encounters in the month before admission (OR 0.5, 95% CI 0.2-1.0). Among CMC discharges, the only association observed was with provider continuity (OR 0.3, 95% CI 0.1- 1.0). Provider continuity may be associated with fewer CMC ACS hospitalizations, however, measures of ambulatory care were more consistently associated with ACS hospitalizations for NC-CD. CMC may need more precise ACS hospitalization definitions.

Differences in the prevalence of hospitalizations and utilization of emergency outpatient services for ambulatory care sensitive conditions between asylum-seeking children and children of the general population: a cross-sectional medical records study (2015)

BackgroundHospitalizations for ambulatory care sensitive (ACS) conditions are established indicators for the availability and quality of ambulatory care. We aimed to assess the differences between asylum-seeking children and children of the general population in a German city with respect to (i) the prevalence of ACS hospitalizations, and (ii) the utilization of emergency outpatient services for ACS conditions.MethodsUsing anonymous account data, all children admitted to the University Hospital Heidelberg in 2015 were included in our study. A unique cost unit distinguished asylum seekers residing in a nearby reception center (exposed) from the children of the general population. We adapted international lists of ACS conditions and calculated the prevalence of ACS hospitalizations and the utilization of emergency outpatient services for ACS conditions, attributable fractions among the exposed (Afe) and the population attributable fraction among total admissions (PAF) for each outcome. Differences in the prevalence of each outcome between exposed and controls were analyzed in logistic regression models adjusted for sex, age group and quarterly admission.ResultsOf the 32,015 admissions in 2015, 19.9% (6287) were from inpatient and 80.1% (25,638) from outpatient care. In inpatient care, 9.8% (622) of all admissions were hospitalizations for ACS conditions. The Afe of ACS hospitalizations was 46.57%, the PAF was 1.12%. Emergency service use for ACS conditions could be identified in 8.3% (3088) of all admissions (Afe: 79.57%, PAF: 5.08%). The odds ratio (OR) of asylum-seeking children being hospitalized for ACS conditions in comparison to the control group was 1.81 [95% confidence interval, CI: 1.02; 3.2]. The OR of the asylumseeking population compared to the general population for the utilization of emergency service use for ACS conditions was 4.93 [95% CI: 4.11; 5.91].ConclusionsAsylum-seeking children had significantly higher odds of ACS hospitalization and of utilization of emergency outpatient services for ACS conditions. Using the concept of ACS conditions allowed measuring the strength of primary care provided to this local asylum-seeking population. This approach could help to compare the strength of primary care provision in different locations, and allow an objective.

Joint modelling of potentially avoidable hospitalisation for five diseases accounting for spatiotemporal effects: A case study in New South Wales, Australia.

BackgroundThree variant formulations of a spatiotemporal shared component model are proposed that allow examination of changes in shared underlying factors over time.MethodsModels are evaluated within the context of a case study examining hospitalisation rates for five chronic diseases for residents of a regional area in New South Wales: type II diabetes mellitus (DMII), chronic obstructive pulmonary disease (COPD), coronary arterial disease (CAD), hypertension (HT) and congestive heart failure (CHF) between 2001–2006. These represent ambulatory care sensitive (ACS) conditions, often used as a proxy for avoidable hospitalisations. Using a selected model, the effects of socio-economic status (SES) as a shared component are estimated and temporal patterns in the influence of the residual shared spatial component are examined.ResultsChoice of model depends upon the application. In the featured application, a model allowing for changing influence of the shared spatial component over time was found to have the best fit and was selected for further analyses. Hospitalisation rates were found to be increasing for COPD and DMII, decreasing for CHF and stable for CAD and HT. SES was substantively associated with hospitalisation rates, with differing degrees of influence for each disease. In general, most of the spatial variation in hospitalisation rates was explained by disease-specific spatial components, followed by the residual shared spatial component.ConclusionAppropriate selection of a joint disease model allows for the examination of temporal patterns of disease outcomes and shared underlying spatial factors, and distinction between different shared spatial factors.

TRANSITIONS IN THE DEMENTIA CARE CONTINUUM: OPPORTUNITIES FOR PERSON-CENTERED APPROACHES

A ‘Transitions can be understood as ‘a change from one state or status to another’. Therefore transitions encompass transitions in levels of care and in locations of care, which integrates a psychosocial and a health care service perspective. In this symposium we will present a variety of research, which exemplify these two perspectives. Two presentations address transitions regarding levels of care: The focus of the 1st speaker is on transition being a carer, within the caregiving journey presenting data from 370 family south Asian and white British caregivers; the focus of the 2nd speaker is on transitions over the course of families living with fronto-temporal dementia and how families adapt and cope with transitions in this conditions. Two presentations address transitions regarding location of care: the 3rd speaker will present person-centered approaches from a RCT testing transitional care interventions for persons with dementia, especially those living in highly-disadvantaged US areas. The 4th speaker will present results regarding transitions from nursing homes to hospitals for residents with Ambulatory Care Sensitive (ACS) conditions, with a specific focus on early detection of ACS. The focus of the 5th speaker is on the role of cross-setting communication for people with dementia in facilitating high quality, person-centered transitions, presenting results from a retrospective cohort study (N = 343). Transitions in the Dementia Care Continuum include attention to individuals’ needs and psychosocial contexts. Research about opportunities and challenges for personcentered approaches need to focus explicitly on these transitions.

Inappropriate Utilization in Fee-for-Service Medicare and Medicare Advantage Plans.

This study uses a national multi-payer claims database to test for differences in potentially inappropriate emergency department (ED) visits and ambulatory care sensitive (ACS) admissions in fee-for-service (FFS) Medicare and Medicare Advantage (MA) plans. Rates of ACS admissions for MA enrollees were approximately one third those of FFS beneficiaries, controlling for covariates, which included the beneficiary's health status as represented by their risk score. This study then compared FFS and MA beneficiaries when they moved from one type of health plan to another. Again, controlling for covariates, potentially inappropriate ED visits and ACS admissions remained at their low baseline values for FFS beneficiaries who switched from FFS Medicare to MA plans, but rose for MA enrollees switching to FFS Medicare.