Telephone Services for Participation in Colorectal Cancer Screening

A multicentre randomized health services study within the population-based primary colonoscopy screening program (PCSP) in Poland. Individuals, aged 55-60 years, willl be randomized in a 1:1:1 ratio to arms: (1) Invitation by post, (2) Call Center or (2) Combined invitation methods. The primary outcome measure is rate of participation in screening colonoscopy. The sample size of 6 300 participants will detect 3 to 5 percentage point differences (depending on the arms comparison) in participation rate between groups with 80% power and significance level 0.05, using Ochran-Mantel-Haenszel test.

Sex

All

Minimum age

55 Years

Maximum age

64 Years

Inclusion Criteria:

* population included to invitation within Polish population based Colorectal cancer Screening Program (PCSP)

  * 55-64 of age
  * no history of CRC
  * no history of screening colonoscopy within PCSP
* adress of residence near (not further than 40 kilometers) local PCSP centers (selected for the study based on population density)

Exclusion Criteria:

* none

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