MMP9 and triple-A syndrome: The risk of death increased with age (OR = 1.09, p = 0.0012), female sex (OR = 5.04, p = 0.019), COPD (OR = 2.71, p = 0.0007), higher baseline AAA diameter (OR = 1.08, p = 0.0012), rapid AAA growth (OR = 3.24, p = 0.0045), and increased level of CRP (OR = 1.87, p = 0.0007), CCL18 (OR = 3.06, p = 0.013), MMP9 (OR = 2.20, p = 0.027), OPN (OR = 20.7, p = 0.0001), and OPG (OR = 7.43, p = 0.0025).