text_1: Osteoparthritis (OA) is characterized by degeneration of articular cartilage, joint edge, and subchondral bone hyperplasia.
text_2: RESULTS At baseline, mean RMDQ scores were 9.2 (95% confidence interval [CI], 8.4-10.0) for glucosamine and 9.7 (95% CI, 8.9-10.5) for the placebo group (P = .37).