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Cost containment strategies, such as tiered drug plans, reduce overall prescription drug utilization and increase the use of generics, according to an analysis of prescription drug use by Medicare-eligible retirees.
But even with decreased utilization, individuals enrolled in three-tiered drug plans, which charge higher copayments for certain medications, spent more money out of pocket than did individuals enrolled in single-tiered plans.
The study, conducted by researchers at Mathematica Policy Research Inc. and RTI International, included 352,760 Medicare beneficiaries with employer-sponsored drug coverage and dependent spouses aged 65 or older (Health Serv. Res. 2007 Sept. 11 [Epub doi:10.1111/j.1475-6773.2007.00774.x]).
The study is further confirmation that the retiree population is sensitive to price, “but we don't know what that means in terms of health outcomes,” Boyd H. Gilman, Ph.D., a senior researcher at the Cambridge, Mass., office of Mathematica, said in an interview.
On average, individuals in single-tiered plans filled 46 prescriptions a year, compared with 38 prescriptions among those enrolled in three-tiered plans. But enrollees in singled-tiered plans used fewer generics, the researchers found. Nearly 39% of the drugs purchased under single-tier plans were generics, compared with nearly 44% in three-tiered plans.
Drug plans spent about $1,943 per individual in single-tiered plans, versus $1,354 in three-tiered plans. Individuals who were enrolled in single-tier plans spent about $245 a year, compared with $469 spent by individuals enrolled in multitiered plans.
The study was funded by an internal grant from RTI International.
Cost containment strategies, such as tiered drug plans, reduce overall prescription drug utilization and increase the use of generics, according to an analysis of prescription drug use by Medicare-eligible retirees.
But even with decreased utilization, individuals enrolled in three-tiered drug plans, which charge higher copayments for certain medications, spent more money out of pocket than did individuals enrolled in single-tiered plans.
The study, conducted by researchers at Mathematica Policy Research Inc. and RTI International, included 352,760 Medicare beneficiaries with employer-sponsored drug coverage and dependent spouses aged 65 or older (Health Serv. Res. 2007 Sept. 11 [Epub doi:10.1111/j.1475-6773.2007.00774.x]).
The study is further confirmation that the retiree population is sensitive to price, “but we don't know what that means in terms of health outcomes,” Boyd H. Gilman, Ph.D., a senior researcher at the Cambridge, Mass., office of Mathematica, said in an interview.
On average, individuals in single-tiered plans filled 46 prescriptions a year, compared with 38 prescriptions among those enrolled in three-tiered plans. But enrollees in singled-tiered plans used fewer generics, the researchers found. Nearly 39% of the drugs purchased under single-tier plans were generics, compared with nearly 44% in three-tiered plans.
Drug plans spent about $1,943 per individual in single-tiered plans, versus $1,354 in three-tiered plans. Individuals who were enrolled in single-tier plans spent about $245 a year, compared with $469 spent by individuals enrolled in multitiered plans.
The study was funded by an internal grant from RTI International.
Cost containment strategies, such as tiered drug plans, reduce overall prescription drug utilization and increase the use of generics, according to an analysis of prescription drug use by Medicare-eligible retirees.
But even with decreased utilization, individuals enrolled in three-tiered drug plans, which charge higher copayments for certain medications, spent more money out of pocket than did individuals enrolled in single-tiered plans.
The study, conducted by researchers at Mathematica Policy Research Inc. and RTI International, included 352,760 Medicare beneficiaries with employer-sponsored drug coverage and dependent spouses aged 65 or older (Health Serv. Res. 2007 Sept. 11 [Epub doi:10.1111/j.1475-6773.2007.00774.x]).
The study is further confirmation that the retiree population is sensitive to price, “but we don't know what that means in terms of health outcomes,” Boyd H. Gilman, Ph.D., a senior researcher at the Cambridge, Mass., office of Mathematica, said in an interview.
On average, individuals in single-tiered plans filled 46 prescriptions a year, compared with 38 prescriptions among those enrolled in three-tiered plans. But enrollees in singled-tiered plans used fewer generics, the researchers found. Nearly 39% of the drugs purchased under single-tier plans were generics, compared with nearly 44% in three-tiered plans.
Drug plans spent about $1,943 per individual in single-tiered plans, versus $1,354 in three-tiered plans. Individuals who were enrolled in single-tier plans spent about $245 a year, compared with $469 spent by individuals enrolled in multitiered plans.
The study was funded by an internal grant from RTI International.