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National Healthcare Disparities Report - LDI Health Economist

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Efficiency<br />

Figure 7.2. Potentially avoidable hospitalization rates, by race/ethnicity and area income, 2001-2008<br />

4000<br />

White<br />

Black<br />

API<br />

Hispanic<br />

4000<br />

First Quartile (Lowest Income)<br />

Second Quartile<br />

Third Quartile<br />

Fourth Quartile (Highest Income)<br />

Chapter 7<br />

Rate per 100,000 Population<br />

3000<br />

2000<br />

Rate per 100,000 Population<br />

3000<br />

2000<br />

1000<br />

2008 Achievable<br />

Benchmark: 818<br />

1000<br />

2008 Achievable<br />

Benchmark: 818<br />

0<br />

2001<br />

2002<br />

2003<br />

2004<br />

2005<br />

2006<br />

2007<br />

2008<br />

0<br />

2001<br />

2002<br />

2003<br />

2004<br />

2005<br />

2006<br />

2007<br />

2008<br />

Key: API = Asian or Pacific Islander.<br />

Source: Agency for <strong><strong>Health</strong>care</strong> Research and Quality (AHRQ), Center for Delivery, Organization, and Markets, <strong><strong>Health</strong>care</strong> Cost and<br />

Utilization Project, State Inpatient Databases disparities analysis file, Nationwide Inpatient Sample, and AHRQ Quality Indicators,<br />

modified version 4.1, 2001-2008.<br />

Denominator: Civilian noninstitutionalized adults age 18 and over.<br />

Note: For this measure, lower rates are better. Annual rates are adjusted for age and gender. White, Black, and Asian or Pacific<br />

Islander populations are non-Hispanic. Income quartiles are based on median income of ZIP Code of patient’s residence.<br />

n From 2001 to 2008, the overall rate of avoidable hospitalizations fell from 1,657 to 1,433 per<br />

100,000 population (data not shown). Declines in avoidable hospitalizations were observed among<br />

all raceial/ethnic and income groups (Figure 7.2).<br />

n In all years, rates of potentially avoidable hospitalizations were higher among Blacks compared with<br />

Whites and lower among Asians and Pacific Islanders (APIs) compared with Whites. Except in 2001<br />

and 2008, rates were also higher among Hispanics compared with Whites.<br />

n In all years, rates of potentially avoidable hospitalizations were higher among residents of areas in<br />

the lowest and second income quartiles compared with residents of the highest income quartile.<br />

n In 2008, the top 3 State achievable benchmark for all potentially avoidable hospitalizations was 818<br />

hospitalizations per 100,000. iii The overall achievable benchmark could not be attained for 20 years.<br />

n The only racial/ethnic group to attain the achievable benchmark as of 2008 was APIs, whereas<br />

Whites could not attain the benchmark for about 16 years. Blacks would not attain the benchmark<br />

for about 18 years, but Hispanics could attain the benchmark in 7 years.<br />

n High-income groups would attain the benchmark sooner than lower income groups (lowest quartile,<br />

about 41 years; second quartile, 15 years; third quartile, 14 years; and highest quartile, 9 years).<br />

iii<br />

The top 3 States that contributed to the achievable benchmark are Hawaii, Utah, and Washington.<br />

194 <strong>National</strong> <strong><strong>Health</strong>care</strong> <strong>Disparities</strong> <strong>Report</strong>, 2011

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