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The association between groups 1 and 2 and door-to-balloon time less than 90 minutes by logistic regression analysis.
| Outcome | Group 1 | Group 2 | 95% CI | p value |
|---|---|---|---|---|
| Reference | aOR | |||
| Door-to-balloon time <90 minutes | 1 | 2.45 | 1.1–6.0 | 0.048 |
aOR, adjusted odds ratio; 95% CI, 95% confidence interval. The adjusted odds ratio was calculated based on potential confounding factors including age, sex, off-hours, and Killip class.
