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Table 2 Characteristics of the screening at-risk cohort with and without abdominal aortic aneurysm (AAA) by age, gender, screening areas and medical history

From: Primary results of abdominal aortic aneurysm screening in the at-risk residents in middle China

variables Without AAA (n = 5384) With AAA (n = 18) P
Sex
 Male,% 2541 (47.20) 14 (77.78) 0.009*
 Female,% 2843 (52.80) 4 (22.22) 0.009*
Age group
  ≤ 55 yrs.,% 1682 (31.24) 0  
  > 55, ≤65 yrs., % 1940 (36.03) 8 (44.44) 0.016*
  > 65, ≤75 yrs., % 1210 (22.47) 8 (44.44) 0.016*
  > 75 yrs 552 (10.25) 2 (11.11) 0.016*
Screening areas
 Urban,% 2589 (48.09) 13 (72.22) 0.041*
 Rural,% 2795 (51.91) 5 (27.78) 0.041*
Medical history
 CAD,%a 975 (18.11) 8 (44.44) 0.004*
 Diabetes,% 1677 (31.15) 4 (22.22) 0.061
 Hypertension,% 3668 (68.13) 17 (94.44) 0.001*
 History of stroke,% 1470 (27.30) 11 (61.11) 0.001*
 Family history of AAA, %b 2 (0.04) 3 (16.67) 0.000*
  1. acoronary artery disease; babdominal aortic aneurysm; *P < 0.05