Gender-Specific Differences in Chronic Subdural Hematoma.

Abstract

Few studies concerning aspects of gender-specific differences in chronic subdural hematoma (CSDH). This study aimed to determine whether gender-specific differences exist in CSDH regarding clinical, radiological characteristics, and prognosis. A total of 585 patients with CSDH were retrospectively identified. Patients were divided into 2 groups based on gender. Clinical, radiological characteristics, and prognosis were compared using Fisher's exact test or Student t test when applicable. The logistic regression model was used to identify independent risk factors associated with death in CSDH patients. The receiver operating characteristic curve was used to detect the sensitivity and specificity of independent risk factors. The average age of women was 71.50±0.92 years, significantly older than 67.30±0.60 years in men. Hypertension, diabetes mellitus, and uremia were significantly more common in women than in men. Alcohol intake was more in males than in females. CSDH patients in males manifested homogeneous iso-dense and homogeneous hyper-dense was obviously more than that in the females. Although homogeneous hypo-dense and mixed density were significantly more common in the females. The average preoperative hematoma volume of the unilateral CSDH in males was 160.85±3.06cm3, significantly more than 139.60±5.70cm3 in females. The mortality of females was 7.4%, higher than 1.7% in males (P=0.004). Female, age, uremia, and recurrence were independent risk factors for death in CSDH patients. Gender-specific differences do exist in CSDH. Female, age, uremia, and recurrence were independent risk factors for death in CSDH patients.