Meat, poultry and fish and risk of colorectal cancer: pooled analysis of data from the UK dietary cohort consortium.
OBJECTIVE
Some but not all epidemiological studies have reported that high intakes of red and processed meat are associated with an increased risk of colorectal cancer. In the UK Dietary Cohort Consortium, we examined associations of meat, poultry and fish intakes with colorectal cancer risk using standardised individual dietary data pooled from seven UK prospective studies.


METHODS
Four- to seven-day food diaries were analysed, disaggregating the weights of meat, poultry and fish from composite foods to investigate dose-response relationships. We identified 579 cases of colorectal cancer and matched with 1,996 controls on age, sex and recruitment date. Conditional logistic regression models were used to estimate odds ratios for colorectal cancer associated with meat, poultry and fish intakes, adjusting for relevant covariables.


RESULTS
Disaggregated intakes were moderately low, e.g. mean red meat intakes were 38.2 g/day among male and 28.7 g/day among female controls. There was little evidence of association between the food groups examined and risk for colorectal cancer: Odds ratios (95% confidence intervals) for a 50 g/day increase were 1.01 (0.84-1.22) for red meat, 0.88 (0.68-1.15) for processed meat, 0.97 (0.84-1.12) for red and processed meat combined, 0.80 (0.65-1.00) for poultry, 0.92 (0.70-1.21) for white fish and 0.89 (0.70-1.13) for fatty fish.


CONCLUSIONS
This study using pooled data from prospective food diaries, among cohorts with low to moderate meat intakes, shows little evidence of association between consumption of red and processed meat and colorectal cancer risk.
Spencer
Elizabeth A
EA
Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK.
Key
Timothy J
TJ
Appleby
Paul N
PN
Dahm
Christina C
CC
Keogh
Ruth H
RH
Fentiman
Ian S
IS
Akbaraly
Tasnime
T
Brunner
Eric J
EJ
Burley
Victoria
V
Cade
Janet E
JE
Greenwood
Darren C
DC
Stephen
Alison M
AM
Mishra
Gita
G
Kuh
Diana
D
Luben
Robert
R
Mulligan
Angela A
AA
Khaw
Kay-Tee
KT
Rodwell
Sheila A
SA
D000818:Animals; D015331:Cohort Studies; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000209:etiology*; D015930:Diet Records; D005260:Female; D005396:Fish Products / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008461:Meat Products / Q000009:adverse effects*; D016017:Odds Ratio; D011202:Poultry Products / Q000009:adverse effects*; D012307:Risk Factors; D006113:United Kingdom / Q000453:epidemiology