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

From: Prognostic role of HER2 amplification based on fluorescence in situ hybridization (FISH) in pancreatic ductal adenocarcinoma (PDAC): a meta-analysis

Study

Country

No. patients (M/F)

Age (years)

HER2-positive rate (%)

Follow-up period

Quality score

Dancer 2007 [15]

USA

38 (3/25)

Median 62 (34–82)

10.7

NA

B

Stoecklein 2004 [9]

Germany

50 (28/22)

NA

24

Median 13 months (3–99)

A

Luo 2013 [18]

China

114 (17/97)

NA

14.9

NA

B

Sharif 2008 [16]

USA

63 (NA)

Mean 67 (28–85)

23.8

NA

A

Saxby 2005 [10]

Australia

30 (17/13)

Median 68 (39–82)

3.3

Median 1.7 years

B

Chou 2013 [17]

Australia

469 (241/228)

Median 68 (28–88)

2.1

NA

A

  1. M/F male/female, NA unknown