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Table 3 Risk ratios and 95% confidence intervals of associations of clinically relevant factors with subsequent mortality and rupture after endovascular abdominal aortic aneurysm repair

From: Predictors of adverse events after endovascular abdominal aortic aneurysm repair: A meta-analysis of case reports

   Death or rupture Rupture Death
  N total N events Risk RR (95%CI) N events Risk RR (95%CI) N events Risk RR (95%CI)
Gender           
   Male 138 36 0.26 - 29 0.21 - 16 0.12 -
   Female 24 11 0.46 1.8 (1.0;2.9)* 6 0.25 1.2 (0.6;2.6) 8 0.33 2.9 (1.4;6.0)*
   Unspecified 11 4 0.36 1.4 (0.6;3.2) 3 0.27 1.3 (0.5;3.6) 2 0.18 1.6 (0.4;6.0)
Age at operation           
   50 to 59 years 7 2 0.29 - 1 0.14 - 2 0.29 -
   60 to 69 years 41 10 0.24 0.9 (0.2;3.0) 9 0.22 1.5 (0.2;10) 3 0.07 0.3 (0.1;1.3)
   70 to 79 years 83 24 0.29 1.0 (0.3;3.4) 15 0.18 1.3 (0.2;8.2) 12 0.14 0.5 (0.1;1.8)
   80 to 89 years 26 10 0.38 1.3 (0.4;4.8) 9 0.35 2.4 (0.4;16) 6 0.23 0.8 (0.2;3.2)
   90 to 99 years 1 1 1.00 3.5 (1.1;11)* 1 1.00 7.0 (1.1;43)* 1 1.00 3.5 (1.1;11)
   Unspecified 15 4 0.27 0.9 (0.2;3.9) 3 0.20 1.4 (0.2;11) 2 0.13 0.5 (0.1;2.7)
N comorbidities           
   0 or unspecified 114 27 0.24 - 24 0.21 - 13 0.11 -
   1 or 2 26 8 0.31 1.3 (0.7;2.5) 3 0.12 0.5 (0.2;1.7) 5 0.19 1.7 (0.7;4.3)
   ≥3 33 16 0.48 2.0 (1.3;3.3)* 11 0.33 1.6 (0.9;2.9) 8 0.24 2.1 (1.0;4.7)*
AAA diameter           
   40 to 49 mm 15 5 0.33 - 3 0.20 - 3 0.20 -
   50 to 59 mm 67 19 0.28 0.9 (0.4;1.9) 13 0.19 1.0 (0.3;3.0) 11 0.16 0.8 (0.3;2.6)
   60 to 69 mm 36 10 0.28 0.8 (0.3;2.0) 8 0.22 1.1 (0.3;3.6) 5 0.14 0.7 (0.2;2.5)
   70 to 79 mm 14 8 0.57 1.7 (0.7;4.0) 7 0.50 2.5 (0.8;7.8) 2 0.14 0.7 (0.1;3.7)
   > 80 mm 11 4 0.36 1.1 (0.4;3.1) 3 0.27 1.4 (0.3;5.5) 3 0.27 1.4 (0.3;5.5)
   Unspecified 30 5 0.17 0.5 (0.2;1.5) 4 0.13 0.7 (0.2;2.6) 2 0.07 0.3 (0.1;1.8)
  1. AAA, abdominal aortic aneurysm; CI, confidence interval; RR, risk ratio. *P value less than 0.05.