FABP4 and diabetes mellitus: In multivariable regression analysis, FABP4 was still associated with an increased risk of severe SAH (OR 1.03, 95% CI 1.01–1.06; P = 0.008) after adjusting for age, sex, BMI, ethnicity, the time from SAH to admission, hypertension, cardiovascular comorbidities, diabetes, nicotine and ethanol abuse, aneurysm size and location, and serum levels of CRP and glucose.