Prescription drug utilization following patient co-payment changes in Australia.
P McManus, N Donnelly, D Henry, W Hall, J Primrose, J Lindner
Pharmacoepidemiol Drug Saf | Published : 1996
In November 1990 major patient co-payment changes were introduced into the Pharmaceutical Benefits Scheme (PBS), which accounts for around 90% of all community prescriptions in Australia. Interrupted time series analyses were performed to assess the impact of these co-payment changes on the prescription levels of defined groups of 'discretionary' and 'essential' drugs for both the general community and for a subgroup comprising elderly returned servicemen and women. While the co-payment changes themselves had a significant immediate effect on lowering the use of both categories of drugs, the effects were substantially larger for the 'discretionary' groups in both cases. Notably there was a c..View full abstract