Subgroup Analysis
SECONDARY
No significant statistical heterogeneity was found in the intervention effect by age, sex, or hospital level. However, we found that the intervention among secondary hospitals resulted in significantly higher rates of reperfusion therapy (1081 of 1870 patients [57.8%] vs 945 of 2202 patients [42.9%]; ARD, 19.0%; 95% CI, 6.4% to 31.6%; AOR, 2.24; 95% CI, 1.29-3.88), intravenous thrombolysis (1062 of 1826 [58.2%] vs 916 of 2170 patients [42.2%]; ARD, 20.3%; 95% CI, 7.4% to 33.1%; AOR, 2.37; 95% CI, 1.34-4.19), and EVT (51 of 231 patients [22.1%] vs 37 of 259 patients [14.3%]; ARD, 13.6%; 95% CI, 1.0%-26.3%; AOR, 3.03; 95% CI, 1.11-8.25) in the intervention period after adjusting for cluster, period, and imbalanced baseline covariates (