Height and Mortality from Aortic Aneurysm and Dissection

Aims: Reports on the association between height and aortic disease have been modest, and there are only a few studies investigating the association between height and mortality from specific aortic disease types or by sex. Methods: We conducted the Japan Collaborative Cohort Study, a prospective study of 99,067 Japanese (41,730 men and 57,337 women) aged 40–79 years old. Height was self-reported, and the participants were followed up from 1988–1989 to the end of 2009. Sex-specific hazard ratios (95% confidence intervals) of mortality from aortic disease type according to sex-specific quartiles of height were analyzed using the Cox proportional hazards model. Results: During the median follow-up period of 19.1 years, the numbers of deaths due to aortic aneurysm, thoracic aortic aneurysm, abdominal aortic aneurysm, and aortic dissection were 87, 29, 48, and 56 among men and 35, 17, 15, and 65 among women, respectively. The sex-specific multivariate hazard ratios (95% confidence intervals) andp for trend for the highest versus lowest quartiles of height were 1.10 (0.66–1.83),p=0.58 among men and 1.54 (0.85–2.79),p=0.06 among women for total aortic disease; 1.85 (0.80–4.28),p=0.16 among men and 5.67 (0.90–35.77),p=0.08 among women for abdominal aortic aneurysm; and 1.13 (0.48–2.64),p=0.65 among men and 1.70 (0.82–3.50),p=0.04 among women for aortic dissection. The positive association was observed for both sexes, albeit more prominent among women. No association was found between height and mortality from thoracic aortic aneurysms. Conclusions: As per our findings, we were able to determine that height was positively associated with mortality from abdominal aortic aneurysm in the Japanese population.