TABLE 1.

Osteoarthritis Papers Identified within Each Category

Category of research	Citations identified falling within category
Physical activity and OA	(1-9)
Early OA	(10-15)
Confidence/instability/falls and OA	(16-20)
Cross-sectional studies dealing with prevalent knee OA	(21-31)
Longitudinal studies dealing with incident knee OA	(3, 12, 13, 32-36)
Longitudinal studies dealing with knee OA disease progression	(37-43)
Physical functioning in knee OA – cross-sectional studies	(5, 17, 19, 44-49, 58, 64, 68)
Physical functioning in knee OA – longitudinal studies	(6, 14, 50-53)
Disability	(7)
Hip OA	(54-58)
Hand OA	(59-65)
Foot OA	(66-69)
Pain/symptoms and OA	(2, 4, 10, 11, 13, 14, 16, 21, 25, 28, 29, 38, 40, 45, 58, 61, 64, 69-85)
Symptom outcome of pharmacological treatments for OA	(86-101)
Structural outcome of pharmacological treatments for OA	(102-106)
Symptom outcome of non-pharmacological treatments for OA	(107-129)
Structural outcome of non-pharmacological treatments for OA	(132)
Prevalence and impact of OA	(133-140)
Health services research in OA	(9, 141-147)
Research priorities in OA	(148, 149)