From: A cluster randomised stepped wedge trial to evaluate the effectiveness of a multifaceted information technology-based intervention in reducing high-risk prescribing of non-steroidal anti-inflammatory drugs and antiplatelets in primary medical care: The DQIP study protocol
VO-1
Total NSAID prescription volume/registered patients in participating compared to non-participating practices
VO-2
Proportion of patients prescribed an NSAID stratified by age in participating compared to non-participating practices