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Table 1 Details of baseline characteristics of the study population

From: The value of neutrophil-to-lymphocyte ratio in predicting severity of coronary involvement and long-term outcome of percutaneous coronary intervention in patients with acute coronary syndrome: a systematic review and meta-analysis

References

NLR groups

No. population

Mean age (year)

Male (%)

Mean follow-up (month)

Shen et al. [12]

 ≤ 3.45

137

59.1

75.2

62

3.45–4.81

138

59.9

73.7

4.82–6.46

138

61.1

75.4

 > 6.46

138

63.9

82.6

Han et al. [13]

 ≤ 3.3

108

59.7

73.1

12

3.3–6.5

108

61.6

78.7

 > 6.5

110

64.2

75.5

Kaya et al. [14]

 < 2.3

227

60

81

43

2.3–4.4

228

60.9

75

 > 4.4

227

61.7

79

Sen et al. [15]

 < 3.3

68

55.1

89.7

38

3.3–4.5

68

56

85.2

 > 4.5

68

56.4

83.8

Arbel et al. [16]

 < 6.5

376

60

80

87

 ≥ 6.5

162

63

83

Ergelen et al. [17]

 ≤ 6.97

1607

55.9

85.4

21

 > 6.97

803

57.5

82.7

Pan et al. [18]

3

212

59.5

78.8

12

3.0–6.4

212

59.2

76.9

 > 6.4

212

59.1

77.8

Zhou et al. [19]

 < 2.2

350

49.06

71.1

42

2.2–3.8

350

52.82

83.1

 > 3.8

350

56.39

86

Wada et al. [20]

 < 1.7

729

65.9

79.6

88

1.7–2.5

692

66.3

83.8

 > 2.5

649

67

85.7

Zuin et al. [21]

 < 2.5

2202

64.2

74.4

12

2.5–5.0

2262

64.5

73

 > 5.0

2156

64.2

74.9

Xu et al. [22]

 ≤ 3.3

1037

66.6

85

24

 > 3.3

396

68.2

86.4

Choi et al. [23]

 ≤ 2.8

110

61.7

66.4

29

 > 2.8

104

69.2

59.6

Liu et al. [24]

 < 1.36

1139

63.3

68.8

36

1.36–1.96

1166

63.4

70.5

 > 1.96

1157

63.6

74.1

Gu et al. [25]

 ≤ 3.3

209

65.5

67.7

40

 > 3.3

441

65

81.1