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Table 1 Characteristics of the included studies

From: Relationship between alcohol-attributable disease and socioeconomic status, and the role of alcohol consumption in this relationship: a systematic review and meta-analysis

Author, Year, Country

Study years

Country

Disease area

Study type

QA score

Sex

Age, yrs (mean or range)

Cases

Controls

SES measure(s) (no. of strata)

Alcohol measure (no. of strata)

Boing et al., 2011 [13]

1998-2006

Brazil

Head & neck cancer

CC

5

M&F

NR

1,017

951

E (3), O (2)

g/yr (5)

Braaten et al., 2005 [22]

1991-1997

Norway

Cancers [Various]

CO

7

F

30-69

93,638

NA

E (4)

g/d (4)

Brown et al., 2001 [19]

1986-1989

USA

Oesophageal cancer

CC

7

M

30-79

347

1,354

E (3), O (3), I (3)

Drinks/wk (4)

Brown et al., 2005 [31]

1991-1994 & 2003

New Zealand

Stroke

CC

6

M&F

69 cases; 60 controls

1,242

2,247

I (2)

Drinks/d (2)

Brummett et al., 2011 [38]

NR

USA

Systolic BP

CO

6

M&F

29

14,299

NA

E (5), I (13), T (2)

Days drank/wk; Drinks/wk (4)

Chaix et al., 2010 [39]

2007-2008

France

Systolic BP

CO

6

M&F

30-79

5,941

NA

E (4), ES (3), T (2)

Drinking status (4)

Conway et al., 2010 [14]

2002-2004

UK

Head & neck cancer

CC

7

M&F

NR

103

91

A (5)

Units/wk (5)

Day et al., 1993 [15]

1984-1985

USA

Head & neck cancer

CC

5

M&F

18-79

1,065

1,182

E (3), ES (2)

Drinks/wk (5)

Dyer et al., 1999 [40]

1985-1986

USA

Hypertension

CO

8

M&F

18-30

4,747

NA

E (2)

ml/d (NA)

Gammon et al., 1997 [20]

1993-1995

USA

Oesophageal cancer

CC

6

M&F

66

221

695

E (6), I (5)

Drinks/wk (6)

Greenberg et al., 1991 [16]

1984-1985

USA

Head & neck cancer

CC

5

M

18-79

762

837

E (3), O (3), ES (3)

Drinks/wk (5)

Heck & Pamuk, 1997 [23]

1971-1975

UK

Breast cancer

CO

8

F

NR

6,261

NA

E (4), I (5)

Last 12 months (2)

Joshi et al., 2008 [30]

NR

South Korea

Liver cancer

CO

7

M

30-59

548,530

NA

O (4)

g/d (5)

Kivimaki et al., 2009 [32]

2000-2004

Finland

Stroke

CO

7

F

44

48,361

NA

O (3)

g/wk (3)

Kropp et al., 2001 [24]

1992-1995

Germany

Female breast cancer

CC

7

F

43

706

1,381

E (3)

g/d (6)

Kruk et al., 2007 [25]

2003-2007

Poland

Female breast cancer

CC

7

F

55

858

1,085

E (4), I (3)

Drinks/wk (3)

Kuper et al., 2007 [33]

1991-1992

Sweden

Stroke

CO

8

F

40

47,942

NA

E (4)

g/d (4)

Laaksonen, et al., 2008 [34]

1979-2001

Finland

Stroke

CO

7

M&F

25-64

60,608

NA

E (3)

Drinks/wk (3)

Larsen et al., 2011 [26]

1993-1997

Denmark

Female breast cancer

CO

7

F

50-64

23,111

NA

E (3), O (7), I (4)

g/d (NA)

Martin-Moreno et al., 1993 [27]

1990-1991

Spain

Female breast cancer

CC

7

F

18-75

762

988

O (5)

g/d (5)

Mattioli et al., 2006 [42]

NR

Italy

Atrial fibrillation

CC

6

M&F

54

116

116

E (3), I (3)

ml/d (4)

McFadden et al., 2009 [35]

1993-1997

UK

Stroke

CO

9

M&F

39-79

22,488

NA

O (5)

Units/wk (3)

Melchior et al., 2005 [28]

1989-1990

France

Cancers [Various]

CO

6

M&F

35-50

20,346

NA

O (3), OM

Glasses/d (4)

Menvielle, et al., 2004 [17]

1989-1991

France

Head & neck cancer

CC

7

M

NR

504

242

E (3), O (3)

Glasses/d (6)

Petrovski et al., 2011 [43]

2005

Hungary

Liver disease

CC

5

M

55 cases; 54 controls

287

892

E (4)

Units/wk (4); Problem drinking (2)

Radi et al., 2005 [41]

1997-1998

France

Hypertension

CC

5

M&F

42 M; 44 F

203

406

E (3)

Glasses/d (2)

Robert et al., 2004 [29]

1988-1995

USA

Female breast cancer

CC

7

F

62 cases; 61 controls

7,179

7,488

E (4), A (5)

Drinks/d (3)

Sharp et al., 2001 [21]

1993-1996

UK

Oesophageal cancer

CC

6

F

NR

159

159

O (5)

Units/wk (4)

Sundell et al., 2008 [36]

1987, 1992 & 1997

Finland

Stroke

CO

8

M&F

25-64

15,965

NA

E (3)

Binge drinking (2)

Veronesi et al., 2010 [37]

1986–1994

Italy

Stroke

CO

8

M&F

51

5,084

NA

E (2)

g/d (3)

Zatonski et al., 1991 [18]

1986-1987

Poland

Head & neck cancer

CC

7

M

53 cases; 44 controls

249

965

E (3), O (3)

Yrs vodka consumption (4)

  1. NR, not reported. NA, not applicable. M, males. F, females. M&F, males and females. E, level of education. O, occupational social class. I, income. A, measure of area-level deprivation. ES, employment status. T, housing ownership or tenure. OM, occupational mobility. ml, millilitres. g, grams. yr, year. d, day. wk, week, BP, blood pressure.