Abstract

Objectives: To explore the association between rurality, transfer patterns and level of care with clinical outcomes of CVST patients in a rural Midwestern state. Materials and Methods: CVST patients admitted to the hospitals between 2005 and 2014 were identified by inpatient diagnosis codes from statewide administrative claims dataset. Records were linked across interhospital transfers using probabilistic linkage. Rurality was defined by Rural-Urban Commuting Areas using the 2-category approximation. Driving distances were estimated using GoogleMaps Application Programming Interface. Hospital stroke certification was defined by the Joint Commission. Severity of CVST was estimated by cost of care corrected for inflation and cost-to-charge ratios. Outcome was discharge disposition and total length of stay (LOS). Wilcoxon rank-sum, Chi-square, Fisher's exact tests and linear and logistic regressions were used. Results: 168 CVST patients were identified (79.8% female; median age = 32, IQR = 24.0–45.5). Median LOS was four days (IQR = 2–7) and patients traveled a median of 8.1 miles (IQR = 2.5–28.5) to the first hospital; 42% of patients were transferred to a second hospital, 5% to a third. More than half (58.3%) bypassed the nearest hospital. 86% visit a primary or comprehensive stroke center (CSC) during their acute care. Rurality was not significantly associated with LOS or discharge disposition after adjusting for age, sex and cost of care. Patients in CSC demonstrated greater likelihood of being discharged home compared to at a primary stroke center after adjusting for age and disease severity (p = 0.008). Conclusions: While rurality was not significantly associated with LOS or disposition outcome, care at a CSC increases likelihood of being discharge home.

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