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Table 1 Patient characteristics

From: Complete versus simplified Selvester QRS score for infarct severity assessment in ST-elevation myocardial infarction

 

Total population (n = 201)

Simplified QRS < 4

(n = 106)

Simplified QRS > 4

(n = 95)

p-value

Age, years

56 [50–67]

55 [49–63]

59 [52–69]

0.004

Female, n (%)

37 (18)

21 (20)

16 (17)

0.588

Body mass index, kg/m2

26 [25–29]

26 [24–28]

27 [25–29]

0.044

Hypertension, n (%)

113 (56)

53 (50)

60 (63)

0.060

Systolic blood pressure, mmHg

130 [114–150]

130 [111–150]

130 [116–150]

0.460

Diastolic blood pressure, mmHg

80 [70–92]

80 [68–90]

80 [71–94]

0.348

Heart rate, min

71 [63–85]

70 [62–83]

74 [64–87]

0.141

Current smoker, n (%)

114 (57)

65 (61)

49 (52)

0.164

Hyperlipidaemia, n (%)

112 (56)

59 (56)

53 (56)

0.958

Diabetes mellitus, n (%)

19 (10)

8 (8)

11 (12)

0.329

Anterior infarct localisation, (%)

92 (46)

35 (33)

57 (60)

<0.001

TIMI flow pre-pPCI

0.158

0

117 (58)

60 (57)

57 (60)

 

1

34 (17)

14 (13)

20 (21)

 

2

37 (18)

25 (24)

12 (13)

 

3

13 (7)

7 (7)

6 (6)

 

TIMI flow post-pPCI

0.717

0

1 (1)

1 (1)

0 (0)

 

1

3 (2)

1 (1)

2 (2)

 

2

21 (10)

11 (10)

10 (11)

 

3

176 (88)

93 (88)

83 (87)

 

Time from symptom onset to pPCI, min

194 [128–378]

198 [137–373]

189 [123–403]

0.517

Peak hs-cTnT, ng/l

4260 [1931–7214]

3150 [1297–5714]

5708 [2784–9352]

<0.001

IS baseline, % of LVMM

15 [7–24]

13 [5–20]

17 [10–26]

0.001

MVO baseline present

102 (51)

59 (45)

43 (62)

0.003

IS follow-up, % of LVMM

10 [4–15]

8 [2–14]

11 [6–16]

0.003

  1. Abbreviations: pPCI Primary percutaneous coronary intervention, hs-cTnT high-sensitivity cardiac Troponin T, IS Infarct size, LVMM Left ventricular myocardial mass, MVO Microvascular obstruction