Table 2

Use of treatments, procedures and tests among patients with STEMI

20112015P value
Relative frequency% (95% CI)Relative frequency% (95% CI)
Reperfusion therapies
 Any reperfusion*1769/327854 (52.3 to 55.7)1793/300559.7 (57.9 to 61.4)<0.0001
 Primary PCI*691/327821.1 (19.7 to 22.5)1014/300533.7 (32.1 to 35.4)<0.0001
 Fibrinolytic therapy*1078/327832.9 (31.3 to 34.5)779/300525.9 (24.4 to 27.5)<0.0001
Acute drugs
 Aspirin within 24 hours*5904/649091 (90.3 to 91.7)6354/692491.8 (91.1 to 92.4)0.1002
 Clopidogrel or ticagrelor within 24 hours*5069/649878 (77 to 79)6298/696490.4 (89.7 to 91.1)<0.0001
 β blockers within 24 hours*1846/310659.4 (57.7 to 61.2)1969/337958.3 (56.6 to 59.9)0.3423
 Statins*†6045/664291 (90.3 to 91.7)6711/711894.3 (93.7 to 94.8)<0.0001
 ACE inhibitors or angiotensin receptor blockers*†4224/644065.6 (64.4 to 66.8)4028/680359.2 (58 to 60.4)<0.0001
 Traditional Chinese medicine†4827/664372.7 (71.6 to 73.7)5101/711871.7 (70.6 to 72.7)0.1912
 Magnesium sulfate†1159/664317.4 (16.5 to 18.4)1477/711820.8 (19.8 to 21.7)<0.0001
Stents†‡
 Drug-eluting stents only1436/146698 (97.2 to 98.7)1974/198599.4 (99.1 to 99.8)0.0001
 Bare metal stents only28/14661.9 (1.2 to 2.6)11/19850.6 (0.2 to 0.9)0.0002
 Both2/14660.1 (−0.1 to 0.3)0/19850 (0 to 0)0.0997
Procedures†
 Coronary angiography2204/664333.2 (32 to 34.3)3239/711845.5 (44.3 to 46.7)<0.0001
 PCI (non-primary)1077/664316.2 (15.3 to 17.1)1237/711817.4 (16.5 to 18.3)0.0676
 Coronary artery bypass graft30/66430.5 (0.3 to 0.6)5/71180.1 (0 to 0.1)<0.0001
 Intra-aortic balloon pump137/66432.1 (1.7 to 2.4)110/71181.5 (1.3 to 1.8)0.0225
Tests†
 Troponin4195/664363.1 (62 to 64.3)5695/711880 (79.1 to 80.9)<0.0001
 Cardiac enzymes6443/664397 (96.6 to 97.4)6407/711890 (89.3 to 90.7)<0.0001
 Echocardiogram4191/664363.1 (61.9 to 64.2)5129/711872.1 (71 to 73.1)<0.0001
  • Data are n/N or % (95% CI), for which n is the number of patients in the study sample and % is a nationally representative rate, unless otherwise stated.

  • *Only among patients eligible for the treatment (ie, patients with no documented contraindications).

  • †During hospital admission.

  • ‡Among patients who received at least one stent.

  • PCI, percutaneous coronary intervention; STEMI, ST segment elevation myocardial infarction.