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Table 1 Main characteristics of all the studies included in the meta-analysis

From: Meta-analysis of associations between neutrophil-to-lymphocyte ratio and prognosis of gastric cancer

First author

Publish time

Age (years)

Number of patients; stage of TNM

Treatment arm

NLR cutoff (HNLR/LNLR)

Follow-up (months) (median and range)

Study quality

Lee S

2013

55 ± 12.4a

7/22/41/104; I to IV

Palliative/adjuvant chemotherapy

3 (62/112)

14.9 (1.0 to 47.9)b

6

Lee DY

2013

57 (23 to 89)b

110/35/62/3; I to IV

Adjuvant chemotherapy

2.15 (50/164)

NR

5

Jin H

2013

60 (37 to 77)b

36/8; III to IV

Neoadjuvant chemotherapy

2.5 (24/22)

NR

5

Dirican A

2013

58 (30 to 86)b

6/20/105/105; I to IV

Palliative/adjuvant chemotherapy

3.8 (89/147)

60

5

Wang DS

2012

<65/230 ≥ 65/94

324; III

Adjuvant chemotherapy

5 (156/168)

39.9 (23.77 to 57.43)b

6

Jeong JH

2012

52.5 (28 to 82)b

104; IV

Palliative chemotherapy

3 (55/49)

11.9 (10.2 to 13.5)b

6

Mohri Y

2010

63.4 (32 to 87)b

232/57/68; I to III

Adjuvant chemotherapy/ neoadjuvant chemotherapy

2.2 (130/227)

68 (1 to 70)b

5

Shimada H

2010

65 (26 to 89)b

584/132/153/159; I to IV

Adjuvant chemotherapy

4 (127/901)

23 (12 to 84)b

5

Yamanaka T

2007

<60/493 ≥ 60/727

1220; IV

Palliative chemotherapy

2.5 (664/576)

15.6

6

  1. NLR, neutrophil-to-lymphocyte ratio; HNLR, high pretreatment NLR; LNLR, low pretreatment NLR; NA, not applicable. aData as mean ± SD. bData as mean (range).