Colorectal Cancer, Screening
Conditions
Keywords
Attendance, Colorectal cancer, Screening, Invitation letter
Brief summary
The purpose of the study is to investigate whether the information about a doctor or possibility to choose doctor's gender included in invitation letter is associated with attendance rate to screening colonoscopy.
Detailed description
Study is performed as a part of NordICC (Clinical trials NCT 00883792) trial, which is intended to investigate the effect of screening colonoscopy on colorectal cancer incidence and mortality. NordICC trial is a multicenter, randomized study conducted in Norway, Sweden, Netherlands and Poland. This study is designed to assess two factors potentially influencing patients attendance. These two factors are: identification of particular doctor performing examination and the possibility of choosing doctor's gender.
Interventions
BEHAVIORALInvitation letter
Invitation letter sent 6 weeks prior to prespecified screening colonoscopy appointment date and followed by reminder letter within 3 weeks if no response is received.
Sponsors
Maria Sklodowska-Curie National Research Institute of Oncology
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
55 Years to 64 Years
Healthy volunteers
No
Inclusion criteria
* Individuals 55-64 years of age randomized to the screening arm of the NordICC trial in Poland
Exclusion criteria
* previous open colorectal surgery * need for long term attention and nursing services (somatic or psychosocial reasons, mental retardation) * ongoing cytotoxic treatment or radiotherapy for malignant disease * severe chronic cardiac or pulmonary disease (NYHA III and IV) * lifelong anticoagulant treatment * coronary or cerebrovascular incident requiring hospitalization during the last three months * residence abroad * return of unopened letter of invitation and/or reminder, or message of death of the subject (not updated in Population Registry) * failure to provide written informed consent * screening colonoscopy within 10 years
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Percentage of invitees attending screening colonoscopy in each invitation letter group | 3 months from the primary assigned screening appointment date |
Secondary
| Measure | Time frame |
|---|---|
| Percentage of forms with consent for examination, sent back after invitation letter but before reminding letter. Differences in attendance between men and women depending on type of the invitation. | 3 weeks after the date of invitation letter |
Countries
Poland
Outcome results
None listed