... V, Martin A, Baron D, Pennec Y, Botton E, MaryJY, Le Goff P, Youinou P: Ability of the American College of Rheumatology 1987 criteria to predict rheumatoid arthritis in patients with early arthritis ... slightly lower NPV of 69% (95% CI65% to 74%).Effect of localization of erosionBaseline erosions were present in the hands in 11.2% of UApatients, in the feet in 8.9% of UA patients, and both in ... higher cut-offs the PPV gradually increased. In thepresence of two or more, three of more and four or more ero-sive joints the PPVs were roughly similar: 53 to 54%. For thecut-off of having five...