Skip to main content

Table 2 Baseline characteristics in patients admitted with a type 1 myocardial infarction at the coronary care unit to Helsingborg’s hospital between 1 January 2011 and 1 January 2015 and discharged without a β-blocker prescription, compared to patients admitted with a type 1 myocardial infarction at the coronary care unit to Helsingborg’s hospital between 1 January 2013 and 31 December 2013 and discharged with a β-blocker prescription

From: β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study

 

No-β-group N = 141 (Mean ± SD) or Mean (%)

β-group N = 206 (Mean ± SD) or Mean (%)

P-value

Background information, risk factors

 Age

64.7 ± 10.3

64.1 ± 10

0.57

 Men

99 (70.2)

142 (68.9)

0.81

 > 74 years

28 (19.9)

35 (17.0)

0.57

 Smoker

40 (28.4)

78 (37.9)

0.08

 Hypertension

59 (41.8)

108 (52.4)

0.06

 Diabetes Mellitus

31 (22.0)

50 (24.3)

0.70

 Heart failure

7 (5.0)

12 (5.8)

0.81

 Chronic obstructive pulmonary disease

8 (5.7)

15 (7.3)

0.66

 Asthma

9 (6.4)

9 (4.4)

0.46

 Previous MI

19 (13.5)

39 (18.9)

0.19

 Previous PCI

16 (11.3)

38 (18.4)

0.10

 Previous CABG

12 (8.5)

22 (10.7)

0.58

 Systolic blood pressure at admission ±SD

145.3 ± 24.3

152.4 ± 25.7

0.02

 Heart rate at admission

71.6 ± 15.2

82.7 ± 19.3

< 0.001*

Diagnosis

 NSTEMI

89 (63.1)

120 (58.3)

0.37

 STEMI

52 (36.9)

86 (41.7)

0.37

Coronary treatment during hospital stay

 PCI

111 (78.7)

170 (82.5)

0.40

 CABG

3 (2.1)

10 (4.9)

0.25

Discharge

 Systolic blood pressure ± SD

134.2 ± 18.3

129.9 ± 18.1

0.02

 Heart rate ± SD

67.2 ± 11.01

67.9 ± 12.12

0.88

 Ejection fraction < 50%

28 (21.4)3

70 (35.4)4

0.01

Medical treatment at discharge

 ACE-I

73 (51.8)

149 (72.3)

< 0.001*

 A2-I

20 14.2)

(15)

0.88

 ADP-I

133 (94.3)

194 (94.2)

> 0.99

 Statins

137 (97.2)

205 (99.5)

0.16

 Aspirin

136 (96.5)

187 (90.8)

0.05

 Oral anticoagulant

8 (5.7)

19 (9.2)

0.31

 Long-acting nitrates

10 (7.1)

19 (9.2)

0.56

 Calcium antagonists

33 (23.4)

29 (14.1)

0.03

 Diuretics

20 (14.2)

40 19.4)

0.25

  1. *Also significant after Bonferroni correction for mass significance: a p-value of < 0.02 was considered significant. 1Missing values n = 4, 2Missing values n = 2, 3Missing values n = 12, 4Missing values n = 8, A2-I Angiotensin II receptor antagonist, ACE-I Angiotensin converting enzyme inhibitor, ADP-I Adenosine diphosphate receptor inhibitor, CABG Coronary artery bypass grafting, MI Myocardial infarction, NSTEMI Non-ST-elevation myocardial infarction, PCI Percutaneous coronary intervention, SD Standard deviation, STEMI ST-elevation myocardial infarction