OUTCOMES: Outcomes are collected every 3 months from baseline to end of one year. Events are tracked using a comprehensive database that we have developed and validated. Further utilization data will be provided by ICES data linkage facilities and patient interviews at the time of outcome assessment. In order to measure compliance we will continue to use electronic measures known as Track Caps (MEMS). The other indirect measure is pharmacy refill data that is provided to us from all community pharmacies the patient uses. This data will be interpreted using a validated formula developed by Steiner et al. (1996). Resource use and clinical outcomes are also collected.