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Table 1 Characteristics of studies

From: Prognostic value and clinicopathological characteristics of PD-L1 overexpression in non-Hodgkin lymphoma: a meta-analysis

Study

Year

Sample size

Country

Tumor type

Median follow-up

(range) (month)

Therapy

Stage

NOS

Cut-off

PD-L1+Number

Antibody

Company

Source

Type

Clone

Kiyasu

2015

1253

Japan

DLBCL

NA

C + T + R

I-IV

7

30%

461

abcam, UK

mouse

MAB

ab52587

Xing

2016

86

USA

DLBCL

21 (0.07–175)

C

I-IV

6

30%

14

Cell Signaling,USA

rabbit

MAB

E1L3N

Dong

2016

100

China

DLBCL

52.4 (1.5–89.1)

C

I-IV

7

5%

54

abcam, UK

rabbit

PAB

ab153991

Bi

2016

77

China

NK/T

38.0 (9.4–79.0)

C

I-II

8

38%

26

abcam, UK

rabbit

PAB

NA

Kim

2016

73

Korea

NK/T

20.6 (0.2–83.2)

C + S

I-IV

7

10%

41

Cell Signaling,USA

rabbit

MAB

E1L3N

Fang

2017

74

China

DLBCL

2.4–86.4

C + S

I-IV

8

10%

20

ZSGB-BIO

rabbit

MAB

SP142

Kwon

2015

126

Korea

DLBCL

52 (16–165)

C

I-IV

8

10%

77

Cell Signaling,USA

rabbit

MAB

E1L3N

Blaker

2016

38

Norway

FL

120 (15.6–408)

C + T

NA

6

2%

15

Spring Bioscience, Pleasanton,CA,USA

rabbit

MAB

SP142

Jo

2016

79

Korea

NK/T

52.4

C + R

I-IV

7

5%

63

R&D Systems,USA

mouse

MAB

NA

Hu

2017

204

China

DLBCL

52 (1–114)

C

I-IV

8

5%

100

Cell Signaling, USA

rabbit

MAB

NA

Cho

2017

76

Korea

PCNSL

20.2 (2.2–128.5)

C + T

NA

6

≥100 cells/HPF

10

Abcam, UK

rabbit

PAB

ab58810

Miyoshi

2016

135

Japan

ATLL

10.9 (0.03–114.8)

C + T + R

I-IV

8

50%

10

Abcam, UK

rabbit

MAB

ab174838

  1. DLBCL diffuse large B cell lymphoma, NK/T NK/T cell lymphoma, FL follicular lymphoma, PCNSL primary central nervous system lymphoma, ATLL adult T cell lymphoma/leukemia, C Chemotherapy, T Transplantation, R Radiotherapy, S Surgery, NOS Newcastle–Ottawa Scale, MAB monoclonal antibody, PAB polyclonal antibody, NA not applicable, NA not applicable