In a relatively smaller randomized mass screening trial (n = 142), Lindholt et al. also found negative correlations between plasma cystatin C levels and human AAA size (r = −0.22) and AAA annual expansion rate (r = −0.24), but no prediction of cases requiring later surgical repair – i.e., AAA larger than 50 mm [35]. The gene discussed is CST3; the disease is triple-A syndrome.