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Gut 49:91-96 doi:10.1136/gut.49.1.91
  • Gastrointestinal cancer

Risks, costs, and compliance limit colorectal adenoma surveillance: lessons from a randomised trial

Table 5

Number of person years of follow up stratified by sex and age group, together with observed and expected numbers of cancers

  • 5-150 From cancers in South East England, 1993, using rates stratified by sex and five year age bands.

  • 5-151 Observed v expected (two sided test), p=0.10.

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