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Table 2 Relative risk of selected cancer incidence of female registered nurses according to cumulative years worked in oncology or a cancer center (method 1), 1996-2000 (N = 56,213)1,2,3,4

From: Cancer incidence and adverse pregnancy outcome in registered nurses potentially exposed to antineoplastic drugs

Site (ICD-9 code)

Employment Duration

Observed

RR

CI (95%)

p-value5

All cancers except non-melanoma skin

never

3078

1.00

 

0.135

 

< 5 years

14

1.10

0.65-1.87

 
 

> 5 years

7

1.89

0.90-3.97

 
 

ever

21

1.28

0.83-1.79

 

Breast (174)

never

1274

1.00

 

0.379

 

< 5 years

9

1.75

0.91-3.38

 
 

> 5 years

3

2.10

0.67-6.53

 
 

ever

12

1.83

1.03-3.23

 

Uterus (179-182)

never

302

1.00

 

0.068

 

< 5 years

3

2.50

0.80-7.82

 
 

> 5 years

1

2.85

0.40-20.38

 
 

ever

4

2.58

0.96-6.94

 
  1. 1Based on Poisson regression using a 10-year lag.
  2. 2Cancers with an incidence of less than 3 cases were excluded.
  3. 3N for ever worked in oncology or cancer center = 905.
  4. 4Adjusted for age and calendar year.
  5. 5Significance of the trend, derived from chi-square analysis.
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BMC Nursing

ISSN: 1472-6955

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