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Table 4 Trend analysis on the number of occupations with high paternal exposure to carcinogenic agents after indexed child was born.

From: Father's occupational exposure to carcinogenic agents and childhood acute leukemia: a new method to assess exposure (a case-control study)

Variables

Cases (N = 193)

Controls (N = 193)

Crude OR 95% CI

 

N

%

N

%

 

No occupation with high exposure

139

72.0

164

85.0

1.0 Reference

One occupation with high exposure

43

23.8

28

14.5

1.81 [1.07,3.07]

Two or more occupations with high exposure

11

4.2

1

0.5

12.98 [1.65,101.78]

  1. OR, odds ratio; CI, confidence interval
  2. Chi square trend = 12.78 (p < 0.001)
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BMC Cancer

ISSN: 1471-2407

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