Table 3 Paternal occupational exposures and ORs with 95% confidence intervals for lymphoid leukaemia

From: Case–control study of paternal occupation and childhood leukaemia in Great Britain, 1962–2006

 

Exposure group

Exposed cases

%

Exposed controls

%

Informative pairs

OR a

95% CI

OR b

95% CI

1

Agriculture

280

2.1

275

2.1

479

1.00

0.84–1.20

1.01

0.84–1.22

2

Agrochemical

368

2.8

372

2.9

644

0.96

0.83–1.12

0.98

0.84–1.15

3

Animals

73

0.6

82

0.6

136

0.74

0.53–1.04

0.75

0.53–1.06

4

Ceramics/glass

46

0.4

49

0.4

89

0.93

0.62–1.42

0.98

0.64–1.51

5

Coal dust

102

0.8

109

0.8

176

0.91

0.68–1.23

0.91

0.67–1.23

6

Construction

863

6.6

879

6.7

1513

0.95

0.86–1.05

1.00

0.90–1.10

7

EMFs

742

5.7

685

5.3

1227

1.10

0.98–1.23

1.10

0.98–1.23

8

Exhaust fumes

982

7.5

1046

8.0

1663

0.90

0.82–1.00

0.93

0.84–1.02

9

Fishing

17

0.1

19

0.1

31

0.94

0.46–1.90

0.84

0.41–1.76

10

Foodstuffs

391

3.0

392

3.0

682

1.00

0.86–1.16

1.01

0.87–1.18

11

Forces

538

4.1

536

4.1

962

1.00

0.88–1.14

NA

 

12

Heat (prolonged exposure)

348

2.7

338

2.6

600

0.99

0.85–1.17

1.04

0.88–1.22

13

Hydrocarbons (inhaled)

1943

14.9

1984

15.2

2774

0.96

0.90–1.04

1.00

0.93–1.09

14

Hydrocarbons (dermal)

994

7.6

1020

7.8

1616

0.94

0.85–1.04

0.99

0.89–1.09

15

Ionising radiation

16

0.1

12

0.1

26

1.17

0.54–2.52

0.93

0.42–2.06

16

Lead

372

2.9

398

3.1

674

0.88

0.76–1.03

0.90

0.77–1.05

17

Leather

26

0.2

17

0.1

39

1.29

0.69–2.44

1.27

0.67–2.40

18

Medical/health care

217

1.7

206

1.6

378

1.04

0.85–1.28

0.96

0.78–1.18

19

Metal

1769

13.6

1814

13.9

2736

0.97

0.90–1.04

0.99

0.92–1.07

20

Metal acid mists

7

0.1

5

0.0

12

1.40

0.44–4.41

1.76

0.51–6.01

21

Metal fumes

153

1.2

161

1.2

264

0.97

0.76–1.23

0.99

0.77–1.26

22

Metal working (oil mists)

498

3.8

506

3.9

901

0.99

0.87–1.13

1.04

0.91–1.19

23

Mining

118

0.9

128

1.0

209

0.88

0.67–1.16

0.89

0.68–1.17

24

Paints

228

1.7

241

1.8

432

0.91

0.75–1.10

0.94

0.77–1.14

25

Paper production

10

0.1

9

0.1

17

0.89

0.34–2.30

0.91

0.35–2.36

26

Plastics

21

0.2

21

0.2

42

1.00

0.55–1.83

1.08

0.59–1.97

27

Printing

115

0.9

115

0.9

221

0.99

0.76–1.29

1.02

0.78–1.33

28

Rubber

24

0.2

14

0.1

36

1.77

0.90–3.49

1.85

0.92–3.75

29

Social contact

1603

12.3

1448

11.1

1912

1.12

1.02–1.22

1.08

0.98–1.18

30

Solvents

374

2.9

380

2.9

636

0.97

0.83–1.13

1.00

0.85–1.17

31

Textile dust

174

1.3

162

1.2

296

1.04

0.83–1.31

1.07

0.85–1.35

32

Tobacco dust

3

0.0

1

0.0

4

3.00

0.31–28.84

3.32

0.34–31.90

33

Wood dust

347

2.7

346

2.7

621

1.03

0.88–1.20

1.03

0.87–1.21

  1. Abbreviations: EMF=electromagnetic field; ONS=Office for National Statistics; OR=odds ratio.
  2. ORs are presented as unadjusteda and adjustedb for social class.
  3. ORs in bold indicate values that differ significantly from 1 (P<0.05).
  4. ORs in bold and underlined indicate values that differ significantly from 1 (P<0.01).
  5. aOR with only the implicit adjustment for the matching factors: sex, registration subdistrict and period of registration.
  6. bOR additionally adjusted for SES (based on ONS categories 1, 2, 3NM, 3M, 4, 5 defined by the father’s declared occupation at the time of the child’s birth).
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