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Proportions of matched patients with SLE and RA with one or more sicca symptoms, pathological reduced Schirmer-I test (S1T), and unstimulated whole saliva (UWS), keratoconjunctivitis sicca, xerostomia, and secondary Sjögren's syndrome (sSS). Keratoconjuntivitis sicca = one or more eye sicca symptoms in combination with pathological S1T; xerostomia = one or more mouth sicca symptoms in combination with pathological UWS. *p<0.05 SLE v RA (McNemar test).
