Skip to main content

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

From: Clinicopathological and prognostic significance of programmed death ligand-1 expression in breast cancer: a meta-analysis

Study

Country

Number of patient

IHC evaluation

Cutoff value for PD-L1 positive

Positive cell (Tumor vs. immune)

HR for DFS

LL for DFS

UL for DFS

HR for OS

LL for OS

UL for OS

Qin T (2015)

China

870

Percentage

≥5%

tumor

1.503

1.091

2.071

2.262

1.598

3.203

Baptista M (2016)

Brazil

192

Allred score

≥4

tumor

0.84

0.39

1.83

0.3

0.09

0.94

Ali HR (2015)

England

5763

N/A

N/A

tumor and immune

N/A

N/A

N/A

N/A

N/A

N/A

Muenst S (2014)

Switzerland

650

H-score

≥100

tumor

N/A

N/A

N/A

4.43

3.424

5.731

Park IH (2016)

Korea

333

H-score

N/A

immune

1.21

0.56

2.62

2.08

0.86

5.04

Ghebeh H (2007)

Saudi Arabia

69

N/A

N/A

tumor

N/A

N/A

N/A

N/A

N/A

N/A

Back to article page

BMC Cancer

ISSN: 1471-2407

Contact us