O steoarthritis is a common chronic condition affecting many older Canadians and is a considerable cause of disability.1 It is the most common form of arthritis and is frequently diagnosed and managed in primary care.2 As the Canadian population ages, the burden of this condition on our health care system will increase, and we must look at trends in risk factors, diagnosis and management.International reports on the prevalence of osteoarthritis diagnoses show an increasing number of patients with the condition.3 This is predominantly due to an increase in the number of people older than 60 years, as well as to an increase in obesity, a leading risk factor for osteoarthritis. [4][5][6][7] Previous studies have provided information about the state of osteo arthritis in Canada. [7][8][9][10][11] In British Columbia, an overall prevalence of 10.8% was found using administrative data (i.e., physician billing and hospital admissions data); by age 70-74 years, 30% of men and 40% of women had osteoarthritis. In Ontario, linked survey and administrative data showed that quality of life was 10%-25% lower among people with osteoarthritis than in the general population, and health care costs were 2-3 times higher than in the nonosteoarthritis group.10 Therefore there is a high prevalence, reduction of quality of life and a large economic burden associated with osteoarthritis in Canada.