APOH and Venous thrombosis: Antibodies against domain I of β2-GPI also did not emerge to be associated with prospective risk of thrombosis in the univariable analysis (SHR per 1000 CU increase = 0.93, 95% CI: 0.65–1.34, p = 0.711), and this result prevailed when analyzing the subgroups of patients (1) with and without a prior history of thrombosis (p for interaction = 0.323) and (2) younger or older than 50 years at study entry (p for interaction = 0.514).