alr3 (version 2.0.5)

drugcost: Drug cost.

Description

These data are to try to understand the effect of health plan characteristics on drug costs. Health plans vary in size, given as member months. Some plans use generic drugs more than others. All differ on copayments. Some have strong restrictions on which drugs can be dispensed value of RI=0 means that all drugs are dispensed, RI=100 means that only one per category is avaiable. The goal is to determine the terms that are related to cost, and in particular to understand the role of GS and RI in determining cost.

Arguments

Format

This data frame uses a short code name for the drug plan as row labels and contains the following columns:
COST
Ave. cost to plan for 1 prescription for 1 day
RXPM
Number of prescriptions per member per year
GS
Percent generic substitution, number between 0 (no substitution) to 100 (always use generic substitute)
RI
Restrictiveness index (0=none, 100=total)
COPAY
Average Rx copayment
AGE
Average age of member
F
Percent female members
MM
Member months, a measure of the size of the plan

Source

Mark Siracuse

References

Weisberg, S. (2005). Applied Linear Regression, 3rd edition. New York: Wiley, Problem 9.15.

Examples

Run this code
head(drugcost)

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