Odds of IVT administration within hospital categories for men, women, and men and women combined. Models were adjusted for sociodemographic factors (age, insurance status, median household income per ZIP code), hospital characteristics (teaching status, bed size, location, region, and annual volume of stroke cases), discharge quarter, weekend admission status, medical comorbidities and disease severity measures (hypertension, diabetes mellitus, dyslipidemia, coronary artery disease, peripheral vascular disease, atrial fibrillation, valvular disease, chronic kidney disease, thrombocytopenia, alcohol abuse, drug abuse, modified Charlson Comorbidity Index, and APR-DRG).