Table 3 Association between BMI and all-cause mortality in patients undergoing open repair of AAA in different models.

From: Body mass index and mortality after elective open abdominal aortic aneurysm repair in a fifteen year multicenter cohort study

Exposure

Model I(HR,95%CI) p

Model II(HR,95%CI) p

Model III(HR,95%CI) p

Model IV(HR,95%CI) p

BMI (kg/m2)

0.959 (0.945, 0.973) < 0.001

0.977 (0.962, 0.992) 0.003

0.973 (0.958, 0.988) < 0.001

0.973 (0.958, 0.989) < 0.001

BMI groups

    

Underweight

1.453 (1.028, 2.054) 0.034

1.510 (1.062, 2.145) 0.023

1.626 (1.142, 2.314) 0.007

1.640 (1.151, 2.338) 0.006

Normal weight

Ref

Ref

Ref

Ref

Overweight

0.785 (0.696, 0.886) < 0.001

0.832 (0.736, 0.941) 0.004

0.818 (0.722, 0.928) 0.002

0.826 (0.728, 0.937) 0.003

Obesity

0.703 (0.593, 0.834) < 0.001

0.895 (0.752, 1.066) 0.214

0.842 (0.721, 0.998) 0.042

0.863 (0.721, 1.033) 0.069

  1. Model I: we did not adjust other covariates.
  2. Model II: we adjusted age, sex, and smoking status.
  3. Model III: we adjusted age, sex, perioperative bleeding, hypertension, DM, smoking status, HGB, Scr, ASA score, total transfusion, cardiac disease, cerebrovascular disease, intestinal ischemia, cardiac complications, pulmonary complications, embolus, and smoking status.
  4. Model IV: we adjusted age(smooth), sex, perioperative bleeding(smooth), hypertension, DM, smoking status, HGB (smooth), Scr(smooth), ASA score, total transfusion(smooth), cardiac disease, cerebrovascular disease, intestinal ischemia, cardiac complications, pulmonary complications, embolus, smoking status,.
  5. HR, Hazard ratios; CI: confidence, Ref: reference.