Gender differences in AAA prevalence, treatment, and outcome. Men were 1.8 times as likely as women to have an intact AAA treated surgically, and 1.4 times as likely to have a ruptured AAA treated surgically. Women who had operations for intact AAA had a 1.4 times greater risk of dying compared with men, and a 1.4 times greater risk of dying after repair of a rupture. Whether these findings are a result of clinical practice patterns or biologic factors remain to be determined, but gender differences of the magnitude observed in the present study are sufficient to justify a prospective investigation involving a regional or national cohort of patients. One possible explanation is that the women were significantly older than the men for all comparisons.
Similar considerations apply to referral for surgery.
Because they may be more likely to be significantly older than men when the AAA is discovered, a fewer proportion might be fit for elective surgery. I can't really imagine that there is any prejudice against women in referral for surgery. Juvonen J et al. They observe that the organism has been previously demonstrated in atherosclerotic lesions of the aorta and the coronary arteries. The Chlamydia may be a feature of the atherosclerotic lesion and not the aneurysmal dilatation itself.