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Table 2 In-hospital diagnostic tests, treatments, and procedures received by patients in tertiles of hospitals with regard to median length of stay

From: National trends in hospital length of stay for acute myocardial infarction in China

 

All hospitals (n = 12706)

High-tertile hospitals (n = 4784)

Middle-tertile hospitals (n = 5105)

Low-tertile hospitals (n = 2817)

P-value

Diagnostic tests

     

 Echocardiogram

6994 (55.0)

2765 (57.8)

2803 (54.9)

1426 (50.6)

0.6

 Ejection fraction

     

 Available

6436 (50.7)

2497 (52.2)

2586 (50.7)

1353 (48.0)

0.8

 Mean ± std

54.0 ± 11.8

54.6 ± 11.8

53.9 ± 11.6

53.3 ± 12.3

0.5

 Biomarkers

    

0.04

  None

1338 (10.5)

393 (8.2)

466 (9.1)

479 (17.0)

 

  CK only

855 (6.7)

263 (5.5)

399 (7.8)

193 (6.9)

 

  CK-MB only

4685 (36.9)

2094 (43.8)

1650 (32.3)

941 (33.4)

 

  Troponin only

395 (3.1)

112 (2.3)

231 (4.5)

52 (1.9)

 

  CK-MB + Troponin

5433 (42.8)

1922 (40.2)

2359 (46.2)

1152 (40.9)

 

Medications within 24 hours of admission

     

 Aspirin

11209 (88.2)

4191 (87.6)

4591 (89.9)

2427 (86.2)

0.2

 Clopidogrel

7418 (58.4)

2739 (57.3)

3104 (60.8)

1575 (55.9)

0.7

 GP IIb/IIIa inhibitors

877 (6.9)

306 (6.4)

392 (7.7)

179 (6.4)

0.8

 Unfractionated heparin

9753 (76.8)

3740 (78.2)

3840 (75.2)

2173 (77.1)

0.6

 Low-molecular-weight heparin

6953 (54.7)

2692 (56.3)

2742 (53.7)

1519 (53.9)

0.8

 Beta-blockers

6328 (49.8)

2346 (49.0)

2657 (52.1)

1325 (47.0)

0.4

 Nitrates

10677 (84.0)

3989 (83.4)

4325 (84.7)

2363 (83.9)

0.9

 Traditional Chinese medicines

7251 (57.1)

2736 (57.2)

2680 (52.5)

1835 (65.1)

0.3

Medications during the hospitalization

     

 Calcium channel blockers

2206 (17.4)

838 (17.5)

893 (17.5)

475 (16.9)

0.9

 ACEIs or ARBs

8345 (65.7)

3226 (67.4)

3311 (64.9)

1808 (64.2)

0.7

 Any Statins

9833 (77.4)

3683 (77.0)

4058 (79.5)

2092 (74.3)

0.5

 Traditional Chinese medicines

8605 (67.7)

3314 (69.3)

3210 (62.9)

2081 (73.9)

0.4

Reperfusion therapies among STEMI

     

 Primary PCI

1307 (12.0)

506 (12.1)

606 (14.1)

195 (8.1)

0.5

 Fibrinolytic therapy

2637 (24.2)

1108 (26.4)

976 (22.7)

553 (23.0)

0.4

Cardiac procedures

     

 Catheterization

3483 (27.4)

1357 (28.4)

1457 (28.5)

669 (23.8)

0.8

 PCI

3013 (23.7)

1165 (24.4)

1284 (25.2)

564 (20.0)

0.7

  1. CK: creatine kinase; CK-MB: creatine kinase MB fraction; ACEI: angiotensin converting enzyme inhibitor; ARB: angiotensin receptor blocker; STEMI: ST-segment elevation myocardial infarction; PCI: Percutaneous coronary intervention.
  2. Numbers in the second to the fifth columns represent count (percentage), unless otherwise specified.