Development and Application of a Population-Oriented Measure of Ambulatory Care Case-Mix

Predictors of Adjuvant Treatment for Pancreatic Adenocarcinoma at the Population Level

“…Baseline demographic characteristics, including age, sex, comorbidity [measured using the Johns Hopkins Adjusted Clinical Groups system score (used with permission)] 18,19 , rurality status, and median income quintile were recorded. The location of a patient's primary residence was determined using the postal code and was aggregated into a geographic region corresponding to a governmentallydesignated local health integration network (http://www.…”

Use of complementary and alternative medicine providers by fibromyalgia patients under insurance coverage

“…The second measure was an index of overall disease burden, which we referred to as morbidity group and was based on the Adjusted Clinical Group (ACG) index. The ACG index is an overall measure of disease burden and expected resource use and has 82 categories (30). The morbidity groups created from this index collapsed the 82 categories into 5 groups based on similarity of expected resource use.…”

Methods for Analyzing Health Care Utilization and Costs

“…Health status, beliefs, and behaviors are sometimes elicited through surveys of the subjects. Health status is sometimes inferred from the diagnostic codes in a person's previous utilization (12,19,33,34; MC Hornbrook, RT Meenan, DJ Bachman, MC O'Keefe Rosetti, MJ Goodman, et al, submitted for publication). A strong predictor of future utilization is previous utilization, based on survey or claims data.…”

“…Multiple regression methods are used extensively to adjust analyses for important patient characteristics or to predict future utilization for individuals (1,13,14,20,31,33,34; MC Hornbrook, RT Meenan, DJ Bachman, MC O'Keefe Rosetti, MJ Goodman, et al, submitted for publication). Utilization data have several characteristics that make them a challenge to analyze.…”