Hospitalization Rates For Ambulatory Care Sensitive Conditions Research Articles

Inequalities in Ambulatory Care Sensitive Conditions: An International Comparison of High-Income Countries

ObjectiveTo examine the differences in inequalities in Ambulatory Care Sensitive Conditions (ACSC) hospitalizations relative to socioeconomic status across nine countries, namely Australia, Canada, England, Finland, France, New Zealand, Spain, Switzerland, and the United States (US). ApproachThe International Collaborative on Costs, Outcomes, and Needs in Care (ICCONIC) research collaborative developed national data sets with hospitalization and sociodemographic data aggregated to small-area levels and pooled across countries using a common data model. Inequalities were assessed using both the slope index of inequality and the relative index of inequality. ResultsThis study developed a common definition and set of codes for ACSC hospitalizations that proved to be comparable across countries and regions. Consistent socioeconomic gradients were observed in all countries with higher ACSC hospitalization rates for individuals in most disadvantaged areas. The greatest difference in hospitalizations between the highest and lowest income quintiles were observed in New Zealand (1603 per 100,000), Finland (1802 per 100,000) and England (1955 per 100,000). ConclusionsThe high-income countries included in this study displayed many commonalities in inequalities in ACSC hospitalizations. As a proxy measure of primary care access and quality, the observed inequalities may implicate disparities in health care quality and access for the lowest socioeconomic status groups. ImplicationsBarriers to health care access in low socioeconomic groups remain a complex and multifaceted issue. Future research should investigate the underlying contributing factors to the observed ACSC hospitalization equity gradients, including primary care delivery model, remuneration approach, and population structure.

Primary Care Physicians in Nova Scotia: Are They Where They Need To Be?

Purpose: Accessible primary health care (PHC) is a key area of interest for policy and research as accessible PHC is associated with better health outcomes and lower health system costs. A critical dimension of accessible PHC is an adequate supply of family physicians (FPs) or general practitioners (GPs). Our study sought to analyze the geographic distribution of FP/GPs practicing in Nova Scotia (NS) and to provide an in-depth analysis of the distribution of FP/GPs in relation to population PHC needs. Methods: Using data from the College of Physicians & Surgeons of Nova Scotia’s registry and 2019 annual license renewal survey, we provide a descriptive analysis of physician distribution, demographics and practice structure characteristics across the four Nova Scotia Health management zones (Central, Eastern, Northern, Western) for the population of FP/GPs practicing in NS in 2019. Additionally, we provided a descriptive analysis of PHC demand indicators and population demographics derived from the Canadian Institute for Health Information, the Canadian Community Health Survey, and the Canadian Census. These population PHC need indicators include hospitalization rates for ambulatory care sensitive conditions (ACSC), perceived health, the Canadian Index of Multiple Deprivation (CIMD), and the percentage of the population aged 65 and over across Nova Scotia Health management zones. Results: FP/GPs practising outside the Central zone are less numerous, older, and more likely to be male and international medical graduates. FP/GPs practicing outside the Central zone are more likely to have solo practices, practice in rural areas and not provide care through technology. Additionally, there is a greater potential demand for PHC outside of the Central zone, indicated by lower physician-to-100,000 population ratios, higher rates of hospitalizations for ACSC, a larger percentage of individuals living in rural areas, aged 65 and over, rating their health as fair or poor, and in the most deprived quintile of the situational vulnerability and economic dependency dimensions of the CIMD. Conclusions: These findings indicate a geographic maldistribution of physicians across NS and potential gaps in access to FP/GPs compared to population health needs across Nova Scotia Health management zones. The findings have implications for targeted physician resources planning and policy.

Association between hospitalizations for sensitive conditions and quality of primary care.

To analyze the association between municipal rates of ambulatory care sensitive conditions (ACSC) hospitalization and the quality of primary health care (PHC), socioeconomic, and demographic variables and those related to local characteristics of the health system from 2010 to 2019. Ecological time series study in Brazilian municipalities analyzing the correlation of ACSC hospitalization rates with PHC quality measured by the three cycles of the Primary Care Access and Program for improving primary care access and quality (PMAQ-AB). The study included municipalities whose teams participated in 80% or more of at least two PMAQ-AB cycles. The correlation between standardized ACSC hospitalization rates and PHC quality and other variables was analyzed. Spearman's test was used between the response variable and numerical explanatory variables. Generalized equations estimation was used as a multivariate model associating ACSC hospitalization rates with the other variables over the years. A total of 3,500 municipalities were included in the models. The quality of PHC (PMAQ-AB score) showed an inverse association with the variation in ACSC hospitalization rates. Hospitalization rates fell by -2% per year every ten-point increase in the PMAQ-AB score, adjusted by the remaining variables. A one-unit increase in the beds per 1,000 inhabitants variable had an impact of approximately +6.4% on ACSC hospitalization rates. Regarding population size, larger municipalities had lower ACSC hospitalization rates. Increased PHC coverage and lower socioeconomic inequality were also associated with the reduction in hospitalizations. The reduction in ACSC hospitalization rates over time was associated with an increase in the quality of PHC. It was also associated with a reduction in the number of hospital beds and municipalities with better socioeconomic indicators.

Using Ambulatory Care Sensitive Conditions to Assess Primary Health Care Performance during Disasters

Introduction:Ambulatory care sensitive conditions (ACSCs) are health conditions for which appropriate primary care intervention could prevent hospital admission. ACSC hospitalization rates are a well established parameter for assessing the performance of primary health care (PHC). Although this indicator has been extensively used to monitor the performance of PHC systems in peacetime, its consideration during disasters has been neglected. The World Health Organization (WHO) has acknowledged the importance of PHC in guaranteeing continuity of care during and after a disaster for avoiding negative health outcomes.Method:A systematic review was conducted to evaluate the extent and nature of research activity on the use of ACSCs during disasters, with an eye toward finding innovative ways to assess the level of PHC function at times of crisis. Online databases were searched to identify papers.Results:A final list of nine publications was retrieved. The analysis of the reviewed articles confirmed that ACSCs can serve as a useful indicator of PHC performance during disasters, with several caveats that must be considered.Conclusion:The reviewed articles cover several disaster scenarios and a wide variety of methodologies showing the connection between ACSCs and health system performance. The strengths and weaknesses of using different methodologies are explored and recommendations are given for using ACSCs to assess PHC performance during disasters.

National Norms for Hospitalizations Due to Ambulatory Care Sensitive Conditions among Adults in the US.

Ambulatory care sensitive conditions (ACSCs) are acute or chronic health issues that lead to potentially preventable hospitalizations when not treated in the outpatient primary care setting. To describe national hospitalization rates due to ACSCs among adult inpatients in the US. A retrospective cross-sectional analysis of the 2018 US National Inpatient Sample (NIS) dataset from the Healthcare Cost and Utilization Project at the Agency of Healthcare Research and Quality was completed in the year 2022. Participants were adult inpatients from community hospitals in 48 states of the US and District of Columbia. ACSC admission rates were calculated using ICD-10 codes and the Purdy ACSC definition. The admission rates were weighted to the US inpatient population and stratified by age, sex, and race. ACSC hospitalization rates varied considerably across age and average number of hospitalizations varied across sex and race. ACSC hospitalization rates increased with age, male sex, and Native American and Black race. The most common ACSCs were pneumonia, diabetes, and congestive heart failure. Previous studies have emphasized the importance of preventable hospitalizations, however, the national rates for ACSC hospitalizations across all ages in the US have not been reported. The national rates presented will facilitate comparisons to identify hospitals and health care systems with higher-than-expected rates of ACSC admissions that may suggest a need for improved primary care services.

Trends in all-cause mortality and inpatient and outpatient visits for ambulatory care sensitive conditions during the first year of the COVID-19 pandemic: A population-based study.

BackgroundThe impact of the COVID‐19 pandemic on the management of ambulatory care sensitive conditions (ACSCs) remains unknown.ObjectivesTo compare observed and expected (projected based on previous years) trends in all‐cause mortality and healthcare use for ACSCs in the first year of the pandemic (March 2020 to March 2021).Design, Setting and ParticipantsWe conducted a population‐based study using provincial health administrative data on general adul population (Ontario, Canada).Outcomes and MeasuresMonthly all‐cause mortality, and hospitalizations, emergency department (ED) and outpatient visit rates (per 100,000 people at‐risk) for seven combined ACSCs (asthma, chronic obstructive pulmonary disease, angina, congestive heart failure, hypertension, diabetes, and epilepsy) during the first year were compared with similar periods in previous years (2016–2019) by fitting monthly time series autoregressive integrated moving‐average models.ResultsCompared to previous years, all‐cause mortality rates increased at the beginning of the pandemic (observed rate in March to May 2020 of 79.98 vs. projected of 71.24 [66.35–76.50]) and then returned to expected in June 2020—except among immigrants and people with mental health conditions where they remained elevated. Hospitalization and ED visit rates for ACSCs remained lower than projected throughout the first year: observed hospitalization rate of 37.29 versus projected of 52.07 (47.84–56.68); observed ED visit rate of 92.55 versus projected of 134.72 (124.89–145.33). ACSC outpatient visit rates decreased initially (observed rate of 4299.57 vs. projected of 5060.23 [4712.64–5433.46]) and then returned to expected in June 2020.

Using Ambulatory Care Sensitive Conditions to Assess Primary Health Care Performance during Disasters: A Systematic Review.

Ambulatory care sensitive conditions (ACSCs) are health conditions for which appropriate primary care intervention could prevent hospital admission. ACSC hospitalization rates are a well-established parameter for assessing the performance of primary health care (PHC). Although this indicator has been extensively used to monitor the performance of PHC systems in peacetime, its consideration during disasters has been neglected. The World Health Organization (WHO) has acknowledged the importance of PHC in guaranteeing continuity of care during and after a disaster for avoiding negative health outcomes. We conducted a systematic review to evaluate the extent and nature of research activity on the use of ACSCs during disasters, with an eye toward finding innovative ways to assess the level of PHC function at times of crisis. Online databases were searched to identify papers. A final list of nine publications was retrieved. The analysis of the reviewed articles confirmed that ACSCs can serve as a useful indicator of PHC performance during disasters, with several caveats that must be considered. The reviewed articles cover several disaster scenarios and a wide variety of methodologies showing the connection between ACSCs and health system performance. The strengths and weaknesses of using different methodologies are explored and recommendations are given for using ACSCs to assess PHC performance during disasters.

Trend of hospitalizations for ambulatory care sensitive conditions and related aspects in Sergipe, 2010 to 2019

Objective: To analyze the trend of hospitalization rates for ambulatory care-sensitive conditions (HACSC) in Sergipe and its seven health regions between 2010 and 2019, correlating with financial investments in health and primary care, strategy coverage of family health, and the number of hospital beds. Methods: This is an ecological time-series study trend with secondary data from the Ministry of Health. The trend verification was done by segmented linear analysis and the correlation between the variables by Spearman's correlation. Results: HACSC in the state of Sergipe showed a trend towards stability. In the Nossa Senhora do Socorro region, an increasing rate trend was identified from 2010 to 2017 and a non-significant decreasing trend from 2017 to 2019, with a negative correlation with per capita investment in PHC. The Itabaiana region showed a trend of reduction in rates from 2010 to 2012, followed by a trend of growth in rates from 2012 to 2020, with no significant correlation with any of the variables. Conclusions: Monitoring HACSC rates and understanding their multifactorial influence are essential since this indicator is helpful in local situational diagnosis and contributes to planning actions.

National Trends in Hospitalization for Ambulatory Care Sensitive Conditions among Korean Adults between 2008 and 2019.

PurposeThis study aimed to examine 12-year trends in hospitalization rates for ambulatory care sensitive conditions (ACSC) and factors affecting hospitalization.Materials and MethodsThis study used data on Korean National Health Insurance and Medical Aid patients aged 19 and over who used medical services at least once between January 2008 and December 2019 with an ACSC as their major diagnosis. As of 2019, a total of 12324071 patients were included. To check for any changes in hospitalization, age- and sex-standardized hospitalization rates were obtained for each condition and insurance type, and multiple logistic regression was performed to identify factors affecting hospitalization.ResultsThe collective average ACSC hospitalization rate decreased from 5.0% in 2008 to 4.2% in 2019. Specifically, hospitalization rates for hypertension (1.4% in 2008; 0.8% in 2019), diabetes (5.8% in 2008; 3.3% in 2019), and chronic obstructive pulmonary disease and asthma (4.1% in 2008; 3.2% in 2019) decreased, while rates for pneumonia (24.5% in 2008; 28.1% in 2019) and urinary tract infection (UTI) (5.7% in 2008; 6.4% in 2019) increased. The rate for heart failure decreased 2.3% between 2008 and 2012 and then rebounded. The odds of hospitalization among Medical Aid patients were 1.45–4.20 times higher than those of National Health Insurance patients.ConclusionDifferences in trends were confirmed for ACSC hospitalization rates among different conditions and insurance types in Korea. These results suggest the need for policy reforms aimed at reducing hospitalization for heart failure, pneumonia, and UTI, especially among Medical Aid patients.

The Child Opportunity Index 2.0 and Hospitalizations for Ambulatory Care Sensitive Conditions.

Hospitalizations for ambulatory care sensitive conditions (ACSCs) are thought to be avoidable with high-quality outpatient care. Morbidity related to ACSCs has been associated with socioeconomic contextual factors, which do not necessarily capture the complex pathways through which a child's environment impacts health outcomes. Our primary objective was to test the association between a multidimensional measure of neighborhood-level child opportunity and pediatric hospitalization rates for ACSCs across 2 metropolitan areas. This was a retrospective population-based analysis of ACSC hospitalizations within the Kansas City and Cincinnati metropolitan areas from 2013 to 2018. Census tracts were included if located in a county where Children's Mercy Kansas City or Cincinnati Children's Hospital Medical Center had >80% market share of hospitalizations for children <18 years. Our predictor was child opportunity as defined by a composite index, the Child Opportunity Index 2.0. Our outcome was hospitalization rates for 8 ACSCs. We included 604 943 children within 628 census tracts. There were 26 977 total ACSC hospitalizations (46 hospitalizations per 1000 children; 95% confidence interval [CI]: 45.4-46.5). The hospitalization rate for all ACSCs revealed a stepwise reduction from 79.9 per 1000 children (95% CI: 78.1-81.7) in very low opportunity tracts to 31.2 per 1000 children (95% CI: 30.5-32.0) in very high opportunity tracts (P < .001). This trend was observed across cities and diagnoses. Links between ACSC hospitalizations and child opportunity extend across metropolitan areas. Targeting interventions to lower-opportunity neighborhoods and enacting policies that equitably bolster opportunity may improve child health outcomes, reduce inequities, and decrease health care costs.

Is Geographical Isolation Associated with Poorer Outcomes for Northern Manitoba First Nation Communities?

This study tested the assumption that geographical isolation is associated with poorer population health outcomes among First Nations in Manitoba. Our results show higher premature mortality rates (PMR) in northern communities, declining slower than for any other Manitoba communities. Our results also show lower ambulatory care sensitive conditions (ACSC) hospitalization rate in the North, suggesting barriers to prevention and early diagnosis. There remains a large gap in ACSC hospitalization rates between First Nations and all Manitobans. Further research is warranted to understand the relationship between the changes in the rates of ACSC and the difference in the rates between northern and southern communities.

The relationship between rates of hospitalization for ambulatory care sensitive conditions and local access to primary healthcare in Manitoba First Nations communities : Results from the Innovation in Community-based Primary Healthcare Supporting Transformation in the Health of First Nations in Manitoba (iPHIT) study.

The objective of this study was to assess the performance of models of primary healthcare (PHC) delivered in First Nation and adjacent communities in Manitoba, using hospitalization rates for ambulatory care sensitive conditions (ACSC) as the primary outcome. We used generalized estimating equation logistic regression on administrative claims data for 63 First Nations communities from Manitoba (1986-2016) comprising 140,111 people, housed at the Manitoba Centre for Health Policy. We controlled for age, sex, and socio-economic status to describe the relationship between hospitalization rates for ACSC and models of PHC in First Nation communities. Hospitalization rates for acute, chronic, vaccine-preventable, and mental health-related ACSCs have decreased over time in First Nation communities, yet remain significantly higher in First Nations and remote non-First Nations communities ascompared with other Manitobans. When comparing different models of care, hospitalization rates were historically higher in communities served by health centres/offices, whether or not supplemented by itinerant medical services. These rates have significantly declined over the past two decades. Local access to a broader complement of PHC services is associated with lower rates of avoidable hospitalization in First Nation communities. The lack of these services in many First Nation communities demonstrates the failure of the current Canadian healthcare system to meet the need of First Nation peoples. Improving access to PHC in all 63 First Nation communities can be expected to result in a reduction in ACSC hospitalization rates and reduce healthcare cost.

Effect of a national primary care reform on avoidable hospital admissions (2000-2015): A difference-in-difference analysis.

In 2006 a major primary care reform was initiated in Portugal. The most significant aspect of this reform was the creation of a new organizational model of primary care provision: Family Health Units (FHUs), consisting of small voluntarily constituted multidisciplinary teams that have functional autonomy and are partly financed through capitation and pay-for-performance. The creation of FHUs sought to increase access to care and to chronic disease management by improving the long-term relationship between health professionals and patients. The objectives of this study are to evaluate the impact of the FHUs implementation on population health outcomes, measured by the rate of hospitalizations for ambulatory care sensitive conditions (ACSC), i.e. avoidable hospital inpatient admissions, and to explore the effectiveness of the pay-for-performance in primary care by analysing the subset of disease specific hospitalizations for ACSC related to the financial incentives. Using data from 276 Portuguese municipalities from 2000 to 2015 (n=4416) and exploiting the gradual introduction of the FHUs over time, we used a difference-in-differences approach contrasting the evolution of the hospitalization rate for ACSC in municipalities that implemented or not the FHUs. We then explored heterogeneous effects by incentivized (diabetes and hypertension) and non-incentivized disease-specific rates of hospitalizations for ACSC. During the period under analysis, 448 FHUs were created in 126 municipalities. No significant impact of the FHUs implementation on the reduction of the hospitalization rate for ACSC was found. This result also held for the incentivized hospitalizations for ACSC. We only found a statistically significant effect of the FHUs implementation in the reduction of one non-incentivized area (the rate of urinary tract infection ACSC). Our results question the capacity of this payment mechanism to achieve better health outcomes, and invites a more careful and evidence-based action toward its wider diffusion.

Avoidable hospitalization in Milan’s metropolitan area: inequalities and comparison with OECD cities

Abstract Background The largest cities on the world face the unprecedented challenge of meeting the needs of a population that lives longer, has declining birthrates, and is altering the demographic profile on which social welfare programs have long been premised. This work is part of an international project aimed at comparing health and social care systems in megacities worldwide. We study access to healthcare in the metropolitan area of Milan to quantify avoidable hospital care and social inequalities within this world city, and compare Milan with other OECD megacities. Methods Two sources of data are combined: individual-level hospital discharge data to measure hospitalization for ambulatory-care sensitive conditions (ACSC), and municipality-level data collected from the national office for statistics. First, we performed an ecological analysis using a linear model for ACSC hospitalization rates to detect the risk factors in the municipality where the patient resides. Then, to identify both individual and area-level variations in population health, we use multilevel logistic regression model. Results Age-adjusted ACSC hospitalization rates continuously declined from 2005 to 2016, from 16% to 10.7%. Municipality-level risk factors include proportion of residents aged 65+ and proportion of foreigner residents. The individual-level predictors of ACSC hospitalization include being male, being single, having co-morbidities and low education. This association is only modestly attenuated when patient’s area-level characteristics are accounted. Conclusions We observed declining trends in ACSC hospitalizations and identified some patient’s as well as area-level characteristics related to avoidable hospitalization. Understanding whether ACSC hospitalization has dropped due to improvements in population health and access to healthcare or as part of the overall reduction in hospitalization rates needs to be further explored. Key messages Effective primary care can reduce hospitalization for preventable and chronic conditions. This work identifies individual and ecological factors related to avoidable hospitalization in urban settings. Policies to improve access to healthcare, tackle inequalities and reduce hospitalization costs may be more effective if targeted on individuals considering and the environment in which they live.

A Spatial Analysis of Preventable Hospitalization for Ambulatory Care Sensitive Conditions and Regional Characteristics in South Korea.

Hospitalization rates for ambulatory care sensitive conditions (ACSCs) can indicate the accessibility of a community's primary care. We examined regional variation in ACSC hospitalization rates and identified associated factors. ACSC hospitalization rates in the 232 districts in 2013 ranged from 4.08 to 101.53 per 1000 adults. Spatial analysis showed that none of the 24 highest rate districts were located near Seoul, whereas 80% of the 45 lowest rate districts were, suggesting health care inequality between people living near Seoul and in other areas. Regression analysis showed significantly higher ACSC hospitalization rates in districts with higher elderly (β = 0.94) and low-income populations (β = 2.25), more remote areas (β = 0.29), and more hospital beds (β = 0.03). The number of primary care clinics was negatively associated with ACSC hospitalization (β = -1.37). For these variables, geographically weighted regression analysis provided local regression coefficients, useful for developing region-specific strategies to reduce ACSC hospitalization.

The effect of the global financial crisis on preventable hospitalizations among the homeless in New York State.

Objective Periods of economic instability may increase preventable hospitalizations because of increased barriers to accessing primary care. For underserved populations such as the homeless, these barriers may be more pronounced due to limited resources in the health care safety net. This study examined the impact of the global financial crisis of 2007-2008 on access to care for the homeless in New York State. Methods Hospitalizations for ambulatory care sensitive conditions (ACSCs) were used as a proxy measure for primary care access. Admissions for ACSCs were identified in the New York State Inpatient Database from 2006 to 2012. Hospitalization rates for ACSCs were calculated for the homeless and nonhomeless. Multivariable linear regression was used to investigate the impact of the financial crisis on hospitalization rates for ACSCs. Results The findings indicate that during the financial crisis, homeless adults had significantly higher preventable hospitalizations than nonhomeless adults, and the uninsured homeless had significantly higher preventable hospitalizations when compared to other homeless subgroups. After the financial crisis, preventable hospitalizations for the homeless stabilized but remained at higher rates than those for the nonhomeless. Conclusions These findings are important to developing health policies designed to provide effective care for underserved population such as the homeless.

\u201cEvolution and financial cost of socioeconomic inequalities in ambulatory care sensitive conditions: an ecological study for Portugal, 2000\u20132014\u201d

BackgroundHospitalizations for Ambulatory Care Sensitive Conditions (ACSC) are specific conditions for which hospitalization is thought to be avoidable through patient education, health promotion initiatives, early diagnosis and by appropriate chronic disease management, and have been shown to be greatly influenced by socioeconomic (SE) characteristics. We examined the SE inequalities in hospitalization rates for ACSC in Portugal, their evolution over time (2000–2014), and their associated financial burden.MethodsWe modeled municipality-level ACSC hospitalization rates per 1000 inhabitants and ACSC hospitalization-related costs per inhabitant, for the 2000–2014 period (n = 4170), as a function of SE indicators (illiteracy and purchasing power, in quintiles), controlling for the proportion of elderly, sex, disease specific mortality rate, population density, PC supply, and time trend. The evolution of inequalities was measured interacting SE indicators with a time trend. Costs attributable to ACSC related hospitalization inequalities were measured by the predicted values for each quintile of the SE indicators.ResultsHospitalization rate for ACSC was significantly higher in the 4th quintile of illiteracy compared with the 1st quintile (beta = 1.97; p < 0.01), and significantly lower in the 5th quintile of purchasing power, compared with the 1st quintile (beta = − 1.19; p < 0.05). ACSC hospitalization-related costs were also significantly higher in the 4th quintile of illiteracy compared with the 1st quintile (beta = 4.04€; p < 0.05), and significantly lower in the 5th quintile of purchasing power, compared with the 1st quintile (beta = − 4,69€; p < 0.01). The SE gradient significantly increased over the 2000–2014 period, and the annual cost of inequalities were estimated at more than 15 million euros for the Portuguese NHS.ConclusionThere was an increasing SE patterning in ACSC related hospitalizations, possibly reflecting increasing SE inequalities in early and preventive high-quality care, imposing a substantial financial burden to the Portuguese NHS.

Association of Income Inequality With Pediatric Hospitalizations for Ambulatory Care–Sensitive Conditions

The level of income inequality (ie, the variation in median household income among households within a geographic area), in addition to family-level income, is associated with worsened health outcomes in children. To determine the influence of income inequality on pediatric hospitalization rates for ambulatory care-sensitive conditions (ACSCs) and whether income inequality affects use of resources per hospitalization for ACSCs. This retrospective, cross-sectional analysis used the 2014 State Inpatient Databases of the Healthcare Cost and Utilization Project of 14 states to evaluate all hospital discharges for patients aged 0 to 17 years (hereafter referred to as children) from January 1 through December 31, 2014. Using the 2014 American Community Survey (US Census), income inequality (Gini index; range, 0 [perfect equality] to 1.00 [perfect inequality]), median household income, and total population of children aged 0 to 17 years for each zip code in the 14 states were measured. The Gini index for zip codes was divided into quartiles for low, low-middle, high-middle, and high income inequality. Rate, length of stay, and charges for pediatric hospitalizations for ACSCs. A total of 79 275 hospitalizations for ACSCs occurred among the 21 737 661 children living in the 8375 zip codes in the 14 included states. After adjustment for median household income and state of residence, ACSC hospitalization rates per 10 000 children increased significantly as income inequality increased from low (27.2; 95% CI, 26.5-27.9) to low-middle (27.9; 95% CI, 27.4-28.5), high-middle (29.2; 95% CI, 28.6-29.7), and high (31.8; 95% CI, 31.2-32.3) categories (P < .001). A significant, clinically unimportant longer length of stay was found for high inequality (2.5 days; 95% CI, 2.4-2.5 days) compared with low inequality (2.4 days; 95% CI, 2.4-2.5 days; P < .001) zip codes and between charges ($765 difference among groups; P < .001). Children living in areas of high income inequality have higher rates of hospitalizations for ACSCs. Consideration of income inequality, in addition to income level, may provide a better understanding of the complex relationship between socioeconomic status and pediatric health outcomes for ACSCs. Efforts aimed at reducing rates of hospitalizations for ACSCs should consider focusing on areas with high income inequality.

Hospitalization for ambulatory care sensitive conditions at health insurance organization hospitals in Alexandria, Egypt.

This study aimed at estimating the percentage of hospital discharges and days of care accounted for by Ambulatory Care Sensitive Conditions (ACSCs) at Health Insurance Organization (HIO) hospitals in Alexandria, calculating hospitalization rates for ACSCs among HIO population and identifying determinants of hospitalization for those conditions. A sample of 8300 medical records of patients discharged from three hospitals affiliated to HIO at Alexandria was reviewed. The rate of monthly discharges for ACSCs was estimated on the basis of counting number of combined ACSCs detected in the three hospitals and the hospitals' average monthly discharges. ACSCs accounted for about one-fifth of hospitalizations and days of care at HIO hospitals (21.8% and 20.8%, respectively). Annual hospitalization rates for ACSCs were 152.5 per 10,000 insured population. The highest rates were attributed to cellulitis/abscess (47.3 per 10,000 population), followed by diabetes complications and asthma (42.8 and 20.8 per 10,00 population). Logistic regression indicated that age, number of previous admissions, and admission department are significant predictors for hospitalization for an ACSC.

The relationship between avoidable hospitalization and accessibility to primary care: a systematic review

Avoidable hospitalization (AH) has been widely studied as a possible measure of the performance of primary health care (PHC). However, studies examining the relationship between the efficiency and quality of PHC and AH have found mixed results. Our study aims at highlighting those factors related to the relationship between AH and accessibility to PHC in different countries. We conducted a systematic search for peer-reviewed studies published between 1990 and October 2010 in English, German, French, Italian or Spanish and indexed primary electronic databases. The final analysis was conducted on the basis of 51 papers. Of them, 72.5% revealed a significant inverse association between the indicator of PHC accessibility and rates of AH. Indicators of PHC calculated at individual level are more likely to reveal contradictory aspects of the relationship between rates of AH and indicators of quality and PHC accessibility. Most studies confirmed the expected relationship between indicators of PHC accessibility and hospitalization for ambulatory care sensitive conditions (ACSCs), showing lower hospitalization rates for ACSC in areas with greater access to PHC. The findings support the use of ACSC hospitalization as an indicator of primary care quality, with the precaution of applying appropriate adjustment factors.