Table 5 Leukaemia risk by paternal occupationally defined social class

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

  

Lymphoid leukaemia

Acute myeloid leukaemia

Other leukaemia

Total leukaemia

Social class of father

Controls

Cases

OR a (95% CI)

Cases

OR a (95% CI)

Cases

OR a (95% CI)

Cases

OR a (95% CI)

I

1032

894

1.09 (0.92–1.29)

150

1.39 (0.90–2.13)

84

1.19 (0.67–2.13)

1128

1.13 (0.97–1.32)

II

3055

2624

1.16 (1.05–1.28)

458

1.12 (0.88–1.41)

223

1.17 (0.85–1.60)

3305

1.15 (1.06–1.26)

III Non-manual

1721

1490

1.11 (0.98–1.26)

282

1.42 (1.03–1.94)

129

0.93 (0.62–1.42)

1901

1.13 (1.01–1.27)

III Manual

5626

4268

1.00

822

1.00

397

1.00

5487

1.00

IV

2687

2015

0.96 (0.86–1.06)

424

1.04 (0.82–1.31)

189

1.17 (0.83–1.66)

2628

0.98 (0.89–1.08)

V

1066

730

0.87 (0.73–1.02)

179

1.03 (0.73–1.46)

84

0.97 (0.59–1.60)

993

0.90 (0.78–1.04)

Trend analysisb

15 187

 

0.95 (0.93–0.97)

 

0.99 (0.94–1.03)

 

1 (0.94–1.07)

15 442

0.96 (0.94–0.98)

  1. Abbreviations: CI=confidence interval; ONS=Office for National Statistics; OR=odds ratio.
  2. The table includes 63 cases and 63 controls who had a social class code assigned but who had no 1970 occupation code assigned and were excluded from the occupation analysis.
  3. ORs in bold are significant at P<0.05; in bold and single underlined at P<0.01; in bold and double underlined at P<0.001.
  4. aOR for the indicated ONS social class(es) with III Manual taken as the reference category.
  5. bOR for each increase in occupational social class.
Back to article page