Multivariable logistic regression analysis of D-dimer concentrations between study groups. The OR for case status across D-dimer level (modeled using restricted cubic spline terms, referent 500 ng/mL). In each figure, participants without an aneurysm serve as the comparator. Models are adjusted for age, TAT (quartiles), smoking status, CHD, and renal insufficiency. (A) Predicted OR for SAAs. (B) Predicted OR for slow-growing AAA. (C) Predicted OR for fast-growing AAA.