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The purpose of the Agency for Healthcare Research and Quality is to enhance the quality, appropriateness, and effectiveness of health services, and access to such services through the establishment of a broad base of scientific research and through the promotion of improvements in clinical and health system practices, including the prevention of diseases and other health conditions.

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  1. hcup-us.ahrq.gov/reports/statbriefs/sb157.pdf
    March 01, 2013 - accounted for more ED visits, whereas children from rural areas disproportionately accounted for fewer … % Girls 47.2 47.3 45.5 48.8 Boys 52.8 52.7 54.5 51.2 Patient residence, % Large metropolitan areas … with 1 million or more residents – Medium Metropolitan: Counties in metropolitan areas of 250,000– … 999,999 residents – Small Metropolitan: Counties in metropolitan areas of 50,000–249,999 residents … one million residents, small metropolitan areas with less than one million residents, micropolitan,
  2. hcup-us.ahrq.gov/reports/statbriefs/sb290-COVID-19-AllHospital.pdf
    December 01, 2020 - With the COVID-19 pandemic beginning in early 2020, hospital utilization changed considerably, as areas … ■ One-third of in-hospital deaths (33 percent) for patients from large metropolitan (metro) areas … were COVID-19 related compared with one in four for patients from other areas in April–December … ■ The number of all-cause in-hospital deaths for patients from large metro areas increased by 41.9 … (27.6 percent) and rural areas (27.7 percent).
  3. hcup-us.ahrq.gov/reports/ataglance/HCUPanalysisHeatExposureEDvsts.pdf
    December 08, 2022 - • Micropolitan including counties in micropolitan service areas of 10,000–49,999 residents • Rural … Census Bureau Definition of American Indian, Alaska Native, and Native Hawaiian Areas (AIANNHAs) to … identify these geographic areas.17 Tribal lands often cross U.S. … For this analysis we needed to define the Tribal areas by FIPS county because the HCUP SEDD and SID … For this analysis, Tribal areas that shared counties were combined into one reporting unit.
  4. hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2018_Hospital_MaskedStats.PDF
    January 01, 2018 - Hospital File Frequency Distribution for HOSP_URCAT4 HOSP_URCAT4 Frequency Percent 1: Large metropolitan areas … with at least 1 million residents 331 33.43 2: Small metropolitan areas with less than 1 million residents … 271 27.37 3: Micropolitan areas 136 13.74 4: Not metropolitan or micropolitan 222 22.42 7: Small … Metro or Micro areas (2 or 3) <= 10 *.** 8: Metropolitan areas (1 or 2) <= 10 *.** 9: Non metropolitan … areas (3 or 4) 25 2.53 please refer to the section on Description of Data Elements.
  5. hcup-us.ahrq.gov/reports/statbriefs/sb166.jsp
    November 01, 2013 - About 30 percent of patients in 2011 were from low-income areas. … Patients residing in large central metropolitan areas accounted for nearly one-third of hospital stays … Patients from rural areas accounted for the smallest share of stays (18 percent). … The hospitalization rate for patients from rural areas was 28 percent higher than for patients living … in medium and small metropolitan areas (1,377 stays versus 1,074 stays per 10,000 population).
  6. hcup-us.ahrq.gov/reports/statbriefs/sb74.pdf
    June 01, 2009 - obstetrical trauma for mothers were highest among women in large metropolitan areas. … Office of Management and Budget (OMB) definitions of Core-Based Statistical Areas. … OMB classifies counties into metropolitan and micropolitan areas. … metropolitan areas using the Urban Influence Codes (UIC). … areas, i.e. counties with no town greater than 10,000 residents.
  7. hcup-us.ahrq.gov/reports/statbriefs/sb194-Inpatient-Mortality-High-Volume-Conditions.jsp
    July 01, 2015 - as well as patients with pneumonia in micropolitan areas (42 percent). … National Center for Health Statistics (NCHS): Metropolitan: Central counties of metropolitan areas … with 1 million or more residents; fringe counties of metropolitan areas with 1 million or more residents … ; counties in metropolitan areas of 250,000-999,999 residents; and counties in metropolitan areas of … 50,000-249,999 residents Micropolitan: Nonmetropolitan counties areas of 10,000 or more residents
  8. hcup-us.ahrq.gov/reports/statbriefs/sb258-Opioid-Hospitalizations-Rural-Metro-Hospitals-2016.pdf
    January 01, 2016 - had a higher average rate of opioid- related inpatient stays than did hospitals located in rural areas … adjacent to metropolitan areas (rural- adjacent) or rural-remote areas (30.8 vs. 20.1 and 16.2 per … , 21.3 percent (896 hospitals) were in rural-adjacent areas, and 17.8 percent (747 hospitals) were in … rural-remote areas. … compared with rural hospitals in remote areas.
  9. hcup-us.ahrq.gov/datainnovations/raceethnicitytoolkit/or15.pdf
    June 23, 2011 -  As expected, the NTR9 better represented AI/ANs in CHSDA areas than non-CHSDA counties, rural areas … compared with urban areas, and tribal and IHS service populations where there is an RPMS-reporting
  10. hcup-us.ahrq.gov/reports/statbriefs/sb163.pdf
    August 01, 2013 - These characteristics can also indicate areas in which to target interventions to improve birth outcomes … 51.1 1,848 48.7 Uninsured 239 5.6 136 3.6 Other 117 2.8 115 3.0 Urbanicity Large metropolitan areas … 1,156 27.3 1,042 27.5 Micropolitan areas 392 9.3 349 9.2 Not metropolitan or micropolitan 235 5.6 … with 1 million or more residents – Medium Metropolitan: Counties in metropolitan areas of 250,000 … –999,999 residents – Small Metropolitan: Counties in metropolitan areas of 50,000–249,999 residents
  11. hcup-us.ahrq.gov/reports/statbriefs/sb208-Teen-Childbirth-Hospital-Stays-Trends.pdf
    January 01, 2016 - , compared with large metropolitan areas (21.6). … In contrast, 43.3 percent of teens with a childbirth-related stay lived in the lowest income areas ( … quartile 1) and only 8.1 percent lived in the highest income areas (quartile 4). … The smallest percentage decrease was among teens who resided in rural areas (24.0 percent decrease) … (40.7 vs. 8.1 per 1,000 females aged 15–19 years); in rural compared with large metropolitan areas
  12. hcup-us.ahrq.gov/sasdoverview.jsp
    January 01, 2025 - Contents: About the SASD SASD Data Elements SASD File Structure SASD Areas of Research and … Return to Contents   SASD Areas of Research and HCUP Publications The SASD are well suited … that requires complete enumeration of ambulatory surgery in hospital-owned facilities within market areas
  13. hcup-us.ahrq.gov/reports/statbriefs/sb130.pdf
    March 01, 2012 - and non-core areas and an additional 34.4 percent lived in medium and small metropolitan areas. … and 227.2 among residents of rural areas, over a 30-fold difference (figure 2). … rural according to the following: Urban: • Large Central Metropolitan: includes metropolitan areas … with 1 million or more residents • Large Fringe Metropolitan: includes counties of metropolitan areas … with 1 million or more residents • Medium and Small Metropolitan: includes areas with 50,000 to
  14. hcup-us.ahrq.gov/reports/statbriefs/sb136.pdf
    March 01, 2012 - ED visits for firearm-related injuries per 100,000 population among people residing in low income areas … and 16.0 visits per 100,000 population among people residing in all other areas. … , 22.4 in medium and small metro areas, and 23.6 in micropolitan and noncore areas). … related to assault involving a firearm were more likely to occur in an urban area than in any other areas … with a population of 1 million or greater – Medium and Small Metropolitan: includes areas of 50,000
  15. hcup-us.ahrq.gov/reports/statbriefs/sb111.pdf
    May 01, 2011 - ■ ED visits were higher in rural areas and among patients in the lowest income quartile, where … urban areas (896 per 100,000), a pattern similar to all ED visits (data not shown). … Rural areas Northeast Midwest South West R u ra li ty R e g io n Note: Urban areas include … Urban areas are metropolitan counties. … Rural areas are counties that are micropolitan or non-metropolitan/non-micropolitan.
  16. hcup-us.ahrq.gov/reports/statbriefs/sb147.pdf
    March 01, 2012 - In 2008 and 2009, residents of rural areas were more likely than residents of urban areas to visit the … 140.5 391.3 Rural areas 263.8 539.3 Community-level income Low income (lowest quartile) 224.7 563.3 … 12–17 7.6 39.1 18–44 10.0 35.2 45–64 20.7 48.0 65 and over 100.9 56.3 Patient residence Urban areas … 24.3 50.0 Rural areas 47.5 61.6 Community-level income Low income (lowest quartile) 38.3 67.1 Not … with 1 million or more residents – Medium and Small Metropolitan: includes areas with 50,000 to
  17. hcup-us.ahrq.gov/reports/statbriefs/sb112.pdf
    May 01, 2011 - ■ There were more than 5 times as many ED visits related to eye injuries for patients from rural areas … (646 per 100,000 population) than urban areas (120 per 100,000) … , and small and medium metropolitan), rate per 100,000 population 120 116 5 5,317 Rural areas … For patients who lived in rural areas, the rate of ED visits related to eye injuries was 646 per 100,000 … population, 5.4 times higher than in urban areas (large central, large fringe, and medium and small
  18. hcup-us.ahrq.gov/reports/statbriefs/sb111.jsp
    May 01, 2011 - areas (896 per 100,000), a pattern similar to all ED visits (data not shown). … Bar chart of Rate per 100,000 population, by rurality: Urban areas; 896. Rural areas ; 1,425. … Note: Urban areas include large and small metropolitan; rural areas include micropolitan and not metropolitan … Urban areas are metropolitan counties. … Rural areas are counties that are micropolitan or non-metropolitan/non-micropolitan.
  19. hcup-us.ahrq.gov/reports/statbriefs/sb157.jsp
    June 01, 2013 - Similar to the distribution in the U.S. population, children from large metropolitan areas disproportionately … accounted for more ED visits, whereas children from rural areas disproportionately accounted for fewer … , at least one million residents 48.3 47.8 59.1 55.1 Small metropolitan areas, less than … These six categories are aggregated into four groups, including large metropolitan areas with at least … one million residents, small metropolitan areas with less than one million residents, micropolitan,
  20. hcup-us.ahrq.gov/reports/statbriefs/sb101.jsp
    November 01, 2010 - There were 4 times as many dog bite-related ED visits and 3 times as many hospital stays in rural areas … than in urban areas. … , about 4 times higher than in urban areas (large central, large fringe, and medium and small metropolitan … As shown in table 2, the rate of hospitalization for patients in rural areas was 2.9 stays per 100,000 … 0.8 3.6 Percentage of female patients 47.7 46.9 Patient Residence† Urban areas

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