858 Letters 1. Gonzalez-Gay MA, Gonzalez-Juanatey C, Vazquez-Rodriguez TR, Gomez-Acebo I, Miranda-Filloy JA, Paz-Carreira J, et al. Asymptomatic hyperuricemia and serum uric acid concentration correlate with subclinical atherosclerosis in psoriatic arthritis patients without clinically evident cardiovascular disease. Semin Arthritis Rheum 2008. E-pub ahead of print. 2. Gonzalez-Juanatey C, Llorca J, Amigo-Diaz E, Dierssen T, Martin J, Gonzalez-Gay MA. High prevalence of subclinical atherosclerosis in psoriatic arthritis patients without clinically evi- dent cardiovascular disease or classic atherosclerosis risk factors. Arthritis Rheum 2007;57:1074 – 80. 3. Iribarren C, Folsom AR, Eckfeldt JH, McGovern PG, Nieto FJ. Correlates of uric acid and its association with asymptomatic carotid atherosclerosis: the ARIC Study. Atherosclerosis Risk in Communities. Ann Epidemiol 1996;6:331– 40. 4. Chen HJ, Bai CH, Yeh WT, Chiu HC, Pan WH. Inﬂuence of metabolic syndrome and general obesity on the risk of ischemic stroke. Stroke 2006;37:1060 – 4. DOI 10.1002/art.24713 Erratum In the article by Collier et al in the April 2009 issue of Arthritis Care & Research (pp. 496 –500), the key for Figure 4 was incorrect. The key for A should have read, (ﬁlled squares) MD Prediction Does Not Concur With DAS28, (open squares) MD Prediction Concurs With DAS28; and the key for B should have read (ﬁlled squares) DAS28 Does Not Concur With MD Prediction, (open squares) DAS28 Concurs With MD prediction. This has been corrected in the online version of the article (http://www3.interscience.wiley.com/journal/ 122290947/abstract). We regret the error.