Skip to main content

Table 1 Selected characteristics of studies included in the meta-analysis

From: Occupational exposure to formaldehyde and risk of non hodgkin lymphoma: a meta-analysis

Reference

Country

Study design

Study period*

Population

Levels of Exposure

Outcome

I/M

Obs/Exp

N**

% men

Walrath et al., 1983 [18]

USA, New York

Co

1902–1980 /1925–1980 (death)

Embalmers

0.20 to 0.91 ppm

ICD-8200; 202,203

M

11/9.6

n.a.

100

Walrath et al., 1984 [19]

USA, California

Co

1916–1978/1925–80 (death)

Embalmers

0.2 and 0.9 ppm

ICD-8200; 202,203 208 209

M

7/6.1

n.a.

100

Stroup et al., 1986 [20]

USA

Co

1888–1969

Anatomist

cumulative exposure

ICD-8200; 202, 203, 208–209

M

8/5.9

2% + 3% migrated

100

Partanen et al., 1993 [21]

Finland

case-referent nested

1957–1982

Wood Industry

reconstructed using a plant/period-specific job exposure

ICD-7200, 202

M

4/n.a.

n.a.

 

Hansen et al., 1995 [22]

Denmark

record linkage

1970–1984

Facilities that used or manufactured > 1 kg per year of formaldehyde

Job title in formaldeide associated facilities

ICD-7200,202

I

32/37.5

  

Stellman et al., 1998 [23]

USA

Co

1982--f.up 1988

Wood Dust Exposure

check.off list

ICD-9200,202

M

11/n.a.

2%

100

Band et al., 1997 [24]

Canada

Co

1950–1992

pulp and paper mill

–

ICD-9200, 202

M

35/n.a.

10%

100

Pinkerton et al., 2004 [25]

USA

Co

1955-f.up 1998

3 garment industries

personnel records of exposure

ICD-9200; 202,203

M

33/n.a.

n.a

18.3

Meyers et al., 2013 [26]

USA

Co

1955/59–2008

formaldehyde resins

campaign of personal sampling

ICD-10 (C46.3,C82-C85,C88.0,C88.3,C91.4,C96)

M

66/n.a

1.1

18

Pira et al., 2014 [27]

Italy

Co

1930–1966 or 1934–58 until 2004

laminated plastic workers

time of employment

ICD-9200–202

M

4/5.4

3.1

81

Coggon et al., 2014 [28]

UK

Co

1941–2012

chemical workers

recorded titles of jobs

ICD-9200,202

M

13/14.4

 

100

Checkoway et al., 2015 [29]

USA

Co

1930–1966 or 1934–58 until 2004

manufacturersor users of formaldehyde,

estimated for each job from individual work histories

ICD-8200,202

M

94/n.a.

 

81.8

  1. NR not relevant, NA not available, Co cohort study, CC case-control study, NCC case-control study nested in a cohort, I incidence, M mortality, N number of cohort members (cohort studies) or number of cases (case-control studies), NHL non-Hodgkin lymphoma, ICD International Classification of Diseases