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Table 2 Description of the main characteristics of the studies included that assess lung cancer risk related with exposure to respirable crystalline silica

From: Occupational exposure to respirable crystalline silica and lung cancer: a systematic review of cut-off points

Author

Study area

Design

Sample size

Follow-up time/data-collection

Population characteristics

Minimum time of exposure

Type of industry

Pukkala et al. 2005

Finland

Cohort

33,664

1971–1995

M: 30,137 (89.5%)

Not specified

Assorted

Age range: 20–65 years

Cassidy et al. 2007

Europe

Case-control

Cases: 2852

1998–2002

M: 5956 (75.4%)

1 year

Assorted

Controls: 3104

Age range: 20–74 years

Bergdahl et al. 2010

Sweden

Cohort

8320

1958–2000

M: 8320 (100%)

1 year

Iron

Preller et al. 2010

The Netherlands

Case-control

Cases: 1667

1986–1997

M: 3701 (100%)

Not specified

Assorted

Controls: 2034

Age range: 55–69 years

Bugge et al. 2012

Norway

Cohort

1166

1953–2008

M: 1166 (100%)

3 years

Carbides

Westberg et al. 2013

Sweden

Cohort

3045

1958–2004

M: 3045 (100%)

1 year

Foundry

Ge et al. 2020

Europe and Canada

Case-control

Cases: 16,901

Not specified

M: 30,056 (79.4%)

Not specified

Assorted

Controls: 20,965

Age range: 45–80 years

  1. Abbreviations: M: men, USA: United States of America