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Table 4 Cumulative occupational exposures for prostate cancer by polytomous logistic regression

From: A case control study investigating the effects of levels of physical activity at work as a risk factor for prostate cancer

Polytomous logistic regression

Exposure total

Exposure

Cumulative exposure

Moderate grade

High grade

p –value {heterogeneity

 

Cases

OR*

95% CI

Cases

OR*

95% CI

 

Manual handling of burdens (score)

1st Tertile

0

- ≤ 2.654

446

1.00

 

88

1.00

  

2nd Tertile

> 2.655

- ≤ 6.808

360

0.93

0.76 – 1.12

83

1.03

0.74 – 1.44

 

3rd Tertile

> 6.808

 

372

1.01

0.83 – 1.22

87

1.08

0.77 – 1.50

0.81

Sedentary work (score)

Unexposed

0

 

750

1.00

 

162

1.00

  

1st Tertile

> 0

- ≤ 1.6

153

1.04

0.81 – 1.31

24

0.77

0.48 – 1.22

 

2nd Tertile

>1.6

- ≤ 5.108

132

0.81

0.64 – 1.04

29

0.82

0.54 – 1.26

 

3rd Tertile

>5.108

 

143

0.98

0.77 – 1.29

43

1.30

0.89 – 1.89

0.21

Work load (score)

1st Tertile

> 0

- ≤ 102

312

1.00

 

54

1.00

  

2nd Tertile

> 103

- ≤ 127

409

1.21

0.99 – 1.48

87

1.36

0.94 – 1.96

 

3rd Tertile

> 128

 

457

1.35

1.09 – 1.57

117

1.66

1.14 – 2.41

0.57

Total cumulative activity (score)

1st Tertile

> 0

- ≤ 69

362

1.00

 

84

1.00

  

2nd Tertile

> 69

- ≤ 98

422

1.23

1.01 – 1.50

74

0.82

0.58 – 1.16

 

3rd Tertile

> 98

 

394

1.20

0.98 – 1.46

100

1.05

0.75 – 1.48

0.06

Physical workload (score)

1st Tertile

0

- ≤ 2.656

414

1.00

 

72

1.00

  

2nd Tertile

> 2.656

- ≤ 7.132

360

0.96

0.79 -1.17

103

1.46

1.05 – 2.04

 

3rd Tertile

> 7.132

 

404

1.14

0.94 -1.38

83

1.22

0.86 - 1.74

0.03

  1. * Odds ratios (OR) and associated 95% confidence intervals (95% CI) adjusted for Age, Family History and SEIFA Index of Economic Resources.