Aortic & peripheral vascular diseaseCohort study

Oxidative stress–related genetic variation and antioxidant vitamin intake in intact and ruptured abdominal aortic aneurysm: a Swedish population-based retrospective cohort study

Eur J Prev CardiolPublished

  • Retrospective cohort study
  • population-based

Authors' conclusion

Our findings highlight the role of oxidative stress genetic variations and antioxidant vitamin intake in AAA.

Study context

Population
Malmö Diet and Cancer Study participants, Sweden
Participants
25,252 participants
Exposure
Oxidative stress–related genetic variants and antioxidant vitamin intake
Outcome
Incidence of intact AAA and rupture (rAAA)
Follow-up
Median 24.3 years

Main finding

As reported in the abstract

Cumulative incidence of intact abdominal aortic aneurysm (AAA)
1.6%
Cumulative incidence of rAAA
0.3%
NOX3 variant (rs3749930) and rAAA risk, males: aHR
2.49 (95% CI 1.36-4.35)
NOX3 variant (rs3749930) and rAAA risk, overall: aHR
1.88 (95% CI 1.05-3.37)
Higher riboflavin intake: reduction in intact AAA incidence
20%
Higher folate intake: reduction in intact AAA incidence
19%

Observational data: associations, not effects.

Further findings

Intact AAA, by NOX3 genotype (interaction)

Inverse association of riboflavin intake stronger in NOX3 variant carriers vs wild-type
60%
Inverse association of vitamin D intake stronger in NOX3 variant carriers vs wild-type
66%
  • P for interaction < 0.05

Intact AAA, by sex (interaction)

Higher riboflavin intake: male-specific risk reduction
33%
Higher vitamin B12 intake: female-specific risk increase
55%
  • P for interaction < 0.05

Original publication

Oxidative stress–related genetic variation and antioxidant vitamin intake in intact and ruptured abdominal aortic aneurysm: a Swedish population-based retrospective cohort study. Eur J Prev Cardiol. Published 4 September 2023. doi:10.1093/eurjpc/zwad271

Summarised from the published abstract; every number is checked against it