Table 15_1_6-1 2010 National Healthcare Quality and Disparities ReportsThe National Healthcare Quality Report (NHQR) is a comprehensive national overview of quality of health care in the United States. It is organized around four dimensions of quality of care: effectiveness, patient safety, timeliness, and patient centeredness. Table 15_1_6.1Emergency department visits for asthmaa per 100,000 population, age 18 and over,b United States, 2007 2007Population groupRateSETotal 498.216.0Age18-44578.719.045-64442.316.165 and over346.79.8 65-69352.011.5 70-74341.910.9 75-79360.311.7 80-84362.012.4 85 and over321.012.2GenderMale347.112.7Female643.419.6Median income of patient's ZIP CodeFirst quartile (lowest income)761.151.0Second quartile523.221.1Third quartile412.818.3Fourth quartile (highest income)295.717.5Location of patient residenceLarge central metropolitan543.147.5Large fringe metropolitan433.726.2Medium metropolitan522.735.9Small metropolitan477.048.8Micropolitan (nonmetropolitan)524.829.6Noncore (nonmetropolitan)476.422.6Region of inpatient treatmentNortheast717.765.5Midwest465.226.5South495.720.7West364.119.4aIncludes inpatient admisstions and excludes patients with cystic fibrosis or anomalies of the respiratory system, obstretric records, and transfers from other institutions.b Rates are adjusted by age and gender using the total U.S. population for 2000 as the standard population; when reporting is by age, the adjustment is by gender only; when reporting is by gender, the adjustment is by age only.Key: SE: standard error.Source: Agency for Healthcare Research and Quality (AHRQ), Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample and Nationwide Emergency Department Sample, 2007, and AHRQ Quality Indicators, version 3.1. Current as of February 2011 Internet Citation: Table 15_1_6-1: 2010 National Healthcare Quality and Disparities Reports. February 2011. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/nhqrdr/nhqrdr10/15_efficiency/T15_1_6-1.html