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Table 2 Factors associated with CRC. Adjusted IRRs from Poisson regression. Calendar year and age as covariates

From: Long-term trends in colorectal cancer: incidence, localization, and presentation

 

Male

 

Female

 

IRR (CI)

P value

IRR (CI)

P value

Total colorectal cancer n = 2173 a

 Calendar year

1.0133 (1.0078–1.0189)

< 0.001

1.0127 (1.0068–1.0186)

< 0.001

 Age (per 5 years)

1.0807 (1.0764–1.0850)

< 0.001

1.0691 (1.0650–1.0732)

< 0.001

Right sided colonic cancer n = 841

 Calendar year

1.0208 (1.0111–1.0306)

< 0.001

1.0148 (1.0059–1.0238)

0.001

 Age (per 5 years)

1.0887 (1.0811–1.0964)

< 0.001

1.0798 (1.0730–1.0866)

< 0.001

Left sided colonic cancer n = 686

 Calendar year

1.0155 (1.0055–1.0256)

0.002

1.0093 (0.9990–1.0197)

0.077

 Age (per 5 years)

1.0797 (1.0721–1.0872)

< 0.001

1.0627 (1.0557–1.0697)

< 0.001

Rectal cancer n = 646

 Calendar year

1.0042 (0.9950–1.0136)

0.37

1.0130 (1.0013–1.0249)

0.030

 Age (per 5 years)

1.0743 (1.0674–1.0813)

< 0.001

1.0607 (1.0528–1.06856)

< 0.001

  1. a Ninety-five patients admitted to Levanger Hospital from the area of Namsos Hospital, mostly because of centralization of rectal cancer during the later years, have been excluded from these incidence analyses. They were not included because that area was not an original part of the primary population area of Levanger Hospital
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BMC Cancer

ISSN: 1471-2407

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