Door to Intravenous Tissue Plasminogen Activator Time and Hospital Length of Stay in Acute Ischemic Stroke Patients, Georgia, 2007-2013.

BACKGROUND: Ischemic stroke patients benefit most from intravenous thrombolysis when they receive the treatment as quickly as possible after symptom onset. Hospitals participating in the Georgia Coverdell Acute Stroke Registry reduced the time from patient arrival to administration of intravenous tissue plasminogen activator. This study evaluates the benefit of reducing door-to-treatment (DTT) time as measured by hospital length of stay (LOS). METHODS: Data from 3154 ischemic stroke patients treated with intravenous thrombolysis from 2007 to 2013 were analyzed. The impact of door-to-treatment time on patients' length of hospital stay, discharge disposition, ambulatory status at discharge, and bleeding complications was assessed, controlling for patient-, hospital- and event-related characteristics. RESULTS: Patients who received intravenous thrombolysis within 30 minutes of hospital arrival had a 19% shorter (95% confidence interval [CI]: 2%-32%, P value = .04) hospital LOS than those treated for more than 120 minutes after arrival. Patients treated within 60 minutes of arrival were 27% more likely (odds ratio = 1.28, 95% CI: 1.06-1.56, P = .01) to have a better discharge disposition than patients treated after 60 minutes of arrival while having a similar rate of bleeding complications. CONCLUSIONS: Shortening the door-to-treatment time is associated with a decrease in patient LOS and better patient outcomes. Hospitals should be encouraged to measure, monitor, and reduce DTT time progressively for a better patient outcome.

Changes in density of on-premises alcohol outlets and impact on violent crime, Atlanta, Georgia, 1997-2007.

INTRODUCTION: Regulating alcohol outlet density is an evidence-based strategy for reducing excessive drinking. However, the effect of this strategy on violent crime has not been well characterized. A reduction in alcohol outlet density in the Buckhead neighborhood of Atlanta from 2003 through 2007 provided an opportunity to evaluate this effect. METHODS: We conducted a community-based longitudinal study to evaluate the impact of changes in alcohol outlet density on violent crime in Buckhead compared with 2 other cluster areas in Atlanta (Midtown and Downtown) with high densities of alcohol outlets, from 1997 through 2002 (preintervention) to 2003 through 2007 (postintervention). The relationship between exposures to on-premises retail alcohol outlets and violent crime were assessed by using annual spatially defined indices at the census block level. Multilevel regression models were used to evaluate the relationship between changes in exposure to on-premises alcohol outlets and violent crime while controlling for potential census block-level confounders. RESULTS: A 3% relative reduction in alcohol outlet density in Buckhead from 1997-2002 to 2003-2007 was associated with a 2-fold greater reduction in exposure to violent crime than occurred in Midtown or Downtown, where exposure to on-premises retail alcohol outlets increased. The magnitude of the association between exposure to alcohol outlets and violent crime was 2 to 5 times greater in Buckhead than in either Midtown or Downtown during the postintervention period. CONCLUSIONS: A modest reduction in alcohol outlet density can substantially reduce exposure to violent crime in neighborhoods with high density of alcohol outlets. Routine monitoring of community exposure to alcohol outlets could also inform the regulation of alcohol outlet density, consistent with Guide to Community Preventive Services recommendations.

Racial residential segregation and stroke mortality in Atlanta.

OBJECTIVE: To assess the association between neighborhood-level racial residential segregation and stroke mortality using a spatially derived segregation index. DESIGN: Cross-sectional study SETTING: Atlanta Metropolitan Statistical Area METHODS: The study population consisted of non-Hispanic Black and White residents of the Atlanta Metropolitan Statistical Area during the time period Jan 1, 2000 to December 31, 2006. Census tract-level stroke death rates for Blacks and Whites were modeled as a function of the segregation index while controlling for two neighborhood-level chronic stressors (poverty, low education). RESULTS: Racial segregation was positively associated with stroke mortality for both Blacks and Whites aged 35-64 years. Among Blacks and Whites aged 65 or older, segregation was negatively associated with stroke mortality after controlling for the two stressors, suggesting that they were pathways between segregation and stroke death rates. CONCLUSION: Future studies are needed to identify additional pathways between residential segregation and other health outcomes, and to collect data that support a life course approach to understanding the impact of residential segregation on health.

Geographic and sociodemographic disparities in drive times to Joint Commission-certified primary stroke centers in North Carolina, South Carolina, and Georgia.

INTRODUCTION: Timely access to facilities that provide acute stroke care is necessary to reduce disabilities and death from stroke. We examined geographic and sociodemographic disparities in drive times to Joint Commission-certified primary stroke centers (JCPSCs) and other hospitals with stroke care quality improvement initiatives in North Carolina, South Carolina, and Georgia. METHODS: We defined boundaries for 30- and 60-minute drive-time areas to JCPSCs and other hospitals  by  using geographic information systems (GIS) mapping technology and calculated the proportions of the population living in these drive-time areas by sociodemographic characteristics. Age-adjusted county-level stroke death rates were overlaid onto the drive-time areas. RESULTS: Approximately 55% of the population lived within a 30-minute drive time to a JCPSC; 77% lived within a 60-minute drive time. Disparities in percentage of the population within 30-minute drive times were found by race/ethnicity, education, income, and urban/rural status; the disparity was largest between urban areas (70% lived within 30-minute drive time) and rural areas (26%). The rural coastal plains had the largest concentration of counties with high stroke death rates and the fewest JCPSCs. CONCLUSION: Many areas in this tri-state region lack timely access to JCPSCs. Alternative strategies are needed to expand provision of quality acute stroke care in this region. GIS modeling is valuable for examining and strategically planning the distribution of hospitals providing acute stroke care.