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Table 4 Studies included in the meta‒analysis of the association between smoking status and breast cancer‒specific mortality

From: Smoking at time of diagnosis and breast cancer-specific survival: new findings and systematic review with meta-analysis

 

Country

Years of follow-up

Stage

No. participants

Breast cancer deaths

Study

Current

Never

Current

Never

smokers

smokers

smokers

smokers

Tominaga et al. [15]

Japan

1986 to 1995

I to IV

68

325

-

-

Manjer et al. [12]

Sweden

1977 to 1996

0 to IV

216

491

48

81

Fentiman et al. [11]

UK

1984 to 2004

I to II

40

67

-

-

Sagiv et al. [16]

USA

1996 to 2002

Invasive

252

568

28

52

Holmes et al. [9]

USA

1978 to 2002

I to III

1,018

2,112

216

357

Dal Maso et al. [8]

Italy

1991 to 2006

I to IV

290

934

80

248

Hellmann et al. [6]

Denmark

1976 to 2007

Loc/reg/met

212

120

96

48

Braithwaite et al. [5]

USA

1997 to 2012

I to III

173

1194

25

111

Warren et al. [4]

USA

1982 to 2010

Loc/reg/met

143

480

-

-

Bérubé et al.

Canada

1987 to 2008

Loc/reg/met

1,079

3,510

185

583

  1. Loc/reg/met, Local, regional and metastatic disease.