Sex difference in types and distribution of risk factors in ischemic and hemorrhagic stroke

Background Stroke is the second leading cause of death worldwide and is associated with several risk factors with variable risk factor distribution by population. We report the types and frequency of the associated factors of stroke in north Iran. Methods Consecutive patients with stroke were recruited from 2014 to 2015. The two groups of ischemic and hemorrhagic stroke were compared with respect to age, sex, the prevalence, and distribution of the risk factors. Results Among 230 patients (84.3% ischemic stroke) with mean age of 61.2 years, hypertension (73%), diabetes mellitus (53%), cardiovascular disease (51%), and dyslipidemia (47%) were the most frequent risk factors. Hypertension was significantly more prevalent in males compared with females (88% vs. 60%, OR = 4.91, 95% CI: 2.48-9.71). Hypertension, smoking, and opioid consumption were associated with hemorrhagic stroke. Dyslipidemia was significantly higher in ischemic stroke (OR = 2.65, 95% CI: 1.21-5.8). Overall, 84.3% of stroke occurred in patients aged >50 years (92.8% of women vs. 74.5% of the men, OR = 4.43, 95% CI: 1.93-10.16, p = 0.001). Conclusion Stroke was more prevalent in females; hypertension was more prevalent in males. In the age group less than 50 years old, stroke is more prevalent in men.