Abstract 331: Area Specific Differences for Quality of Care and Outcomes in Ischemic Stroke in China

Background: Former studies suggest differences in stroke care associated with race, age or gender. We sought to find whether such disparities existed in different areas in patients hospitalized with stroke among hospitals participating in the China Stroke Center Association.

Methods: In-hospital mortality and 4 stroke performance measures among 660,225 patients admitted with ischemic stroke in the Eastern, Central and Western regions of China in the China Stroke Center Association between 2015 and 2019.

Results: After adjustment for both demographics and diseases history variables, western patients had lower odds relative of receiving intravenous thrombolysis (Eastern: OR, 1.78; 95%CI, 1.72 to 1.84; Central: OR, 1.55; 95%CI, 1.50 to 1.60), early antithrombotics (Eastern: OR, 1.95; 95%CI, 1.90 to 1.99; Central: OR, 1.86; 95%CI, 1.81 to 1.90), dysphagia screening (Eastern: OR, 1.03; 95%CI, 1.01 to 1.04; Central: OR, 0.83; 95%CI, 0.81 to 0.84) and NIHSS (Eastern: OR, 1.18; 95%CI, 1.16 to 1.20; Central: OR, 1.50; 95%CI, 1.48 to 1.53). However, the in-hospital death was higher in eastern and central regions (Eastern: OR, 0.48; 95%CI, 0.43 to 0.54; Central: OR, 0.51; 95%CI, 0.45 to 0.57).

Conclusions: Western patients with stroke received fewer evidence-based care processes than central or eastern patients. Quality of care improvement in stroke should be focused on the west. The high mortality of the east and central probably resulted in that better hospitals in these areas received more severe patients substantially.