Of 22 cases with positive mycoplasma antibodies (group A) and 32 cases with negative mycoplasma antibodies (group B), ANA, anti-double chains DNA antibody and rheumatoid factor of 10 cases in group A and 4 ones in group B were positive.

• 支原体抗体阳性者 2 2例 (A组 ) ,支原体抗体阴性者 32例 (B组 ) ,其中 A组有 10例 ,B组有 4例抗核抗体、抗双链DNA抗体及类风湿因子阳性。