Positivity for at least one MSA/MAA was associated with the presence of myalgia (X2 6.5, p = 0.01), telangiectasia (X2 4, p = 0.04), puffy fingers (X2 6.3, p = 0.01), ANA positivity (X2 10.9 p = 0.001), and RP (X2 8.2, p = 0.004). This evidence concerns the gene BTG3 and Myalgia.