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• W4213090334 abstract "Abstract Objective To examine outpatient care fragmentation and its association with future hospitalization among patients at high risk for hospitalization. Data Sources Veterans Affairs (VA) and Medicare data. Study Design We conducted a longitudinal study, using logistic regression to examine how outpatient care fragmentation in FY14 (as measured by number of unique providers, Breslau's Usual Provider of Care (UPC), Bice‐Boxerman's Continuity of Care Index (COCI), and Modified Modified Continuity Index (MMCI)) was associated with all‐cause hospitalizations and hospitalizations related to ambulatory care sensitive conditions (ACSC) in FY15. We also examined how fragmentation varied by patient's age, gender, race, ethnicity, marital status, rural status, history of homelessness, number of chronic conditions, Medicare utilization, and mental health care utilization. Data Extraction Methods We extracted data for 130,704 VA patients ≥65 years old with a hospitalization risk ≥90th percentile and ≥ four outpatient visits in the baseline year. Principal Findings The mean (SD) of FY14 outpatient visits was 13.2 (8.6). Fragmented care (more providers, less care with a usual provider, more dispersed care based on COCI) was more common among patients with more chronic conditions and those receiving mental health care. In adjusted models, most fragmentation measures were not associated with all‐cause hospitalization, and patients with low levels of fragmentation (more concentrated care based on UPC, COCI, and MMCI) had a higher likelihood of an ACSC‐related hospitalization (AOR, 95% CI = 1.21 (1.09‐1.35), 1.27 (1.14‐1.42), and 1.28 (1.18‐1.40), respectively). Conclusions Contrary to expectations, outpatient care fragmentation was not associated with elevated all‐cause hospitalization rates among VA patients in the top 10th percentile for risk of admission; in fact, fragmented care was linked to lower rates of hospitalization for ACSCs. In integrated settings such as the VA, multiple providers, and dispersed care might offer access to timely or specialized care that offsets risks of fragmentation, particularly for conditions that are sensitive to ambulatory care." @default.
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• W4213090334 date "2022-03-11" @default.
• W4213090334 modified "2023-10-02" @default.
• W4213090334 title "Outpatient care fragmentation in Veterans Affairs patients at high‐risk for hospitalization" @default.
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• W4213090334 doi "https://doi.org/10.1111/1475-6773.13956" @default.
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