Fig. 2From: Non-O blood group is associated with lower risk of in-hospital mortality in non-surgically managed patients with type A aortic dissectionSurvival curves of O-type and Non-O-type AD patients. Survival curves were obtained using Cox proportional hazards models. a Model 1 was unadjusted; b Model 2 was adjusted for age, sex; c Model 3 was adjusted for AD type, SBP and surgery. AD Type aortic dissection type, SBP systolic blood pressureBack to article page