Variation in readmission and mortality following hospitalisation with a diagnosis of heart failure: prospective cohort study using linked data.

4 ; and Table 2 –30-day unplanned readmission; Table 3 –30-day mortality; and Additional file 2 : Table S2–30-day unplanned readmission/mortality) showed the proportion of overall variation in outcomes explained by variation between hospitals (Model 1) was not statistically significant for unplanned readmission (ICC = .0205, p = 0.12) or mortality (ICC = 0.0000), while the between-hospital variation in the combined readmission/mortality outcome was marginally significant in the null model, explaining 3.0% of the total variance in outcomes ( p = 0.04).

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