Abstract
Background
Women are relatively protected against coronary artery disease (CAD). Whether female gender has a similar protective influence on the development of peripheral artery disease (PAD) has not been extensively investigated and was the main subject of our study.
Methods
We analysed 2707 consecutive patients (2008 men and 699 women) who underwent a first diagnostic coronary angiography for suspicion of CAD and 2367 consecutive patients (1426 men and 941 women) who underwent a first ankle arm index measurement because of suspicion of PAD.
Results
We found that a positive diagnosis for CAD and PAD was more common in men compared with women (80.7% vs 57.9%, p<0.0001 and 68.0% vs 60.7%, p<0.0001). Once CAD or PAD was established, severity of disease was similar for men and women, which pleads against a referral bias. Women had a reduced risk of CAD after adjustment for risk factors (odds ratio [OR] 0.32, 95% confidence interval [CI] 0.22-0.46, p<0.0001), but not of PAD (OR 0.82, 95% CI 0.66-1.03, p=NS). In patients with CAD and in those with PAD, women were older, more often had diabetes and hypertension, while men were more likely to be current smokers. Hypertension, smoking and diabetes were associated with CAD in both men and women. Current smoking was associated with PAD in men and women. Hypertension and diabetes were associated with PAD in women but not in men.
Conclusion
After adjustment for risk factors, the female protection for CAD seems to less present for PAD.
Keywords: coronary artery disease, peripheral artery disease, risk factors, men, women
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