… of comorbidity measures in predicting treatment use and mortality, and examines the influence
of using different data sources on measure … hospitalizations in the baseline period prior to …

… We selected comorbidities for study based on our prior work indicating they were associated
with other outcomes in MS or affected at least 5% of the MS population, 3,4,20 or were …

… , enabling and then need factors other than comorbidity and prior year ACSHs. We then
added comorbidity, represented as either separate comorbidity flags or the Charlson index plus …

… To assess the contribution of comorbidity codes from prior hospitalizations, we … comorbidity
codes generated from only index hospitalizations. Because of concerns that certain comorbid …

… assessing comorbidity: individual Charlson comorbidities, Elixhauser comorbidities, prior
major … using chart review data collected from an index hospitalization to predict 1-year survival. …

… if their comorbidity measures were missing in the prior year due to … for comorbidity identified
at the index hospitalization. … comorbidity before the index hospitalization and comorbidity …

… of prior year costs, prior year comorbidity, prior year … Prior year comorbidity had a slightly
higher positive predictive value than prior hospitalization and both were better than prior …

… comorbidity on potentially preventable hospitalizations and … noncardiac comorbidities and
probability of hospitalization. … other comorbidities had a mean probability of hospitalization …

… Prior hospitalizations for a patient were linked by medical record number and any …
comorbidity markers. Seventeen binary comorbidity variables were created for each index patient …

… an index hospitalization with which comorbid conditions might … for an index hospitalization
as 1 month prior to through 6 … -related hospitalization, we selected the hospitalization closest …