assumption for categories of HAQ: the given OR is for the lowest category of HAQ (0) vs. the higher 2, for the lower 2 vs. the highest, OR 0.93 (95% CI: 0.81, 1.05)Conclusions: Composite factors representing multi-joint OA involvement were associated with reduced gait speed and higher HAQ scores, although the estimates were attenuated by covariates, particularly age and BMI. Such composite factors