Association of receiving thrombolytic therapy with prehospital delay and first ECG delay
| Thrombolytic therapy rate (%) (no. of cases/total number) | Crude RR* (95% CI) | Adjusted RR† (95% CI) | |
| Prehospital delay | |||
| Yes | 34.0 (1669/4903) | 0.62 (0.58 to 0.67) | 0.68 (0.64 to 0.73) |
| No | 57.6 (1388/2409) | ||
| First ECG delay | |||
| Yes | 31.4 (722/2299) | 0.71 (0.66 to 0.76) | 0.72 (0.66 to 0.78) |
| No | 46.6 (2335/5013) | ||
*Crude RR calculated from logistic regression with the generalised estimating equations (GEE) model only included prehospital delay and first ECG delay.
†Further adjusted for sex, age, education level, occupation, medical insurance, current smoking, histories of myocardial infarction, angina, stroke, heart failure, transient ischaemic attack, diabetes, hypertension, dyslipidaemia, time cycles (every 6 months), vital signs at admission, arrived at regular hours, third phase of the Clinical Pathways for Acute Coronary Syndrome (CPACS-3) intervention.
RR, risk ratio.