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Living Alone and Homelessness as Predictors of 30-Day Potentially Preventable Hospital Readmission


A flow chart shows how the final sample was developed. Patients who died (n = 1,101), readmission encounters (n = 949), and patients with other exclusions (eg, oncology, nonclinical encounters) (n = 2,393) were subtracted from all patient encounters (n = 25,717) for a final sample of 21,274.

Figure 1.
Selection criteria for the predictive model for all inpatient encounters (N = 25,717) collected from 2 urban hospitals in Hawai’i. Abbreviation: PPR, potentially preventable readmission.

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Figure 2.
Number and distribution by percentage of Elixhauser comorbidity counts (20) for nonhomeless and homeless patients for 2 urban hospitals in Hawai‘i . Comorbidities are the existence of multiple chronic conditions in addition to the principal diagnosis or reason for hospitalization.

No. Comorbidities Not Homeless, % Homeless, %
0 5 0
1–3 33 23
4–6 30 34
7–9 18 25
≥10 14 17

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Page last reviewed: February 7, 2019