SDC1 and inherited lipid metabolism disorder: Nevertheless, both dyslipidaemia (HR 9.928, 95% CI 1.000, 98.552, P = 0.005) and serum syndecans-1 ≥ 120.1 ng/mL (HR 59.822, 95% CI 0.611, 5,860.343, P = 0.080) at diagnosis exhibited the possibility of the independent association with all-cause mortality during follow-up in patients with AAV (Table 3).