medCMA {medAdherence}R Documentation

Continuous measure of Medication Availability

Description

medCMA function calculates the Continuous measure of Medication Acquisition.

Continuous measure of Medication Acquisition (CMA) was calculated by the days' supplies of medication throughout the study period divided by the number of days from the first dispensation date up to the patient's participation completion (study end).

Usage

medCMA(df=data,followUpDays=365)

Arguments

df a dataframe created by postData funtion
followUpDays days of follow up. 365 is the default, 12 month follow up

Author(s)

Xiangyang Ye, Pharmacotherapy Outcomes Research Center, University of Utah

References

Steiner, JG and Prochazka, AV. The Assessment of Refill Compliance Using Pharmacy Records: Methods, Validity, and Applications. Journal of Clinical Epidemiology 1997;50:105-116

Hess, LM, Raebel, MA, et al. Measurement of Adherence in Pharmacy Administrative Databases: A Proposal for Statndard Definitions and Preferred Measures The Annals of Pharmacotherapy 2006;40:1280-1288

Examples

data(cmos)
predt <- preRxData(df=cmos,id=ptid,rxDate=rxDay,daySupply=supplies)
postdt <-postRxData(predt)
medCMA(postdt)

[Package medAdherence version 1.01 Index]