Correlation of serum MBL levels with activity and extent of disease in SSc cases. (A) Correlation with extent of skin involvement as assessed by the modified Rodnan skin score (mRSS). (B) Correlation with extent of functional disability as assessed by the Scleroderma Health Assessment Questionnaire (SSc HAQ). (C) Correlation with extent of pulmonary involvement as assessed by forced vital capacity (FVC, % predicted). MBL, mannose-binding lectin; SSc, systemic sclerosis.