Table 2.

Baseline serologya

ParameterCRPRNRP
n372128
dsDNA (mU/L; mean ± SD)292 ± 555296 ± 336279 ± 653NS
    >20 mU/L (n [%])36 (97)20 (95)27 (96)NS
C3 (mg/dl; mean ± SD)41 ± 1939 ± 1540 ± 18NS
    <80 mg/dl (n [%])36 (97)21 (100)27 (96)NS
C4 (mg/dl; mean ± SD)12 ± 1117 ± 1117 ± 12NS
    <15 mg/dl (n [%])28 (76)12 (57)14 (50)NS
Cryoglobulin (μ g/ml; mean ± SD)231 ± 374132 ± 122112 ± 98NS
    >21 μ g/ml (n [%])32 (86)19 (95)27 (96)NS
n331928
Anti-Ro 8 (24) 6 (32)13 (46)NS
Anti-La2 (6)0 (0) 4 (14)NS
Anti-nRNP15 (45) 9 (47)11 (39)NS
Anti-Sm13 (39) 6 (32)10 (36)NS
  • a dsDNA, double-stranded DNA.