Comment on: ‘Anti-Ro52 autoantibodies are associated with interstitial lung disease and more severe disease in patients with juvenile myositis’ by Sabbaghet al

Response to: ‘Comment on: ‘Anti-Ro52 autoantibodies are associated with interstitial lung disease and more severe disease in patients with juvenile myositis’ by Sabbagh Set al’by Yanget al

“…We are grateful for the interest in our work1 shown by Drs Yang and Liang. In their correspondence regarding this work,2 they raise concerns about (1) the association between anti-Ro52 autoantibodies and interstitial lung disease (ILD) in juvenile polymyositis (JPM) and juvenile connective tissue disease–myositis (JCTM), (2) the appropriateness of adjusting for duration of follow-up instead of length of time from onset to diagnosis and (3) the lack of statistical power to draw some conclusions.…”