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

From: Effect of hyperthermic intraperitoneal chemotherapy in combination with cytoreductive surgery on the prognosis of patients with colorectal cancer peritoneal metastasis: a systematic review and meta-analysis

Author

Year

Country

Enrollment

Type

HIPEC group (n)

Control group (n)

HIPEC characteristics

Control characteristics

HR 95% CI

Technique

Time

(min)

Franko

2010

American

2001–2007

Cohort

67

38

Close

100

PC

0.42 (0.19–0.91)

Cashin

2012

Sweden

1996–2010

Cohort

69

57

Open

30

CRS + SPIC

0.60 (0.36–0.99)

Chen

2020

China

2008–2016

Randomized

14

14

Close

90

HIPEC + dCRS

0.98 (0.57–1.32)

Razenberg

2015

Netherlands

2005–2012

Cohort

297

1980

NR

NR

PC

0.36 (0.36–0.43)

Huang

2014

China

2005–2013

Cohort

33

29

Close

90

CRS

0.47 (0.25–0.85)

Gervais

2013

Canada

2004–2011

Cohort

25

15

Close

30

PC

0.21 (0.12–0.52)

Elias

2009

France

1998–2003

Cohort

48

48

Open

30

PC

0.35 (0.19–0.64)

Verwaal

2008

Netherlands

1998–2001

Randomized

54

51

Open

90

PC

0.57 (0.36–0.93)

Baratti

2020

Italy

2012–2018

Cohort

48

48

Close

60

CRS

0.73 (0.47–1.15)

Quénet

2021

France

2008–2014

Randomized

133

132

NR

30

CRS

0.99 (0.62–1.57)

  1. SPIC Sequential postoperative intraperitoneal chemotherapy, CRS Cytoreductive surgery, PC Palliative chemotherapy, dCRS Delayed cytoreductive surgery; open, the open Coliseum technique; close, the close Coliseum technique; NR, not reported