The British Childhood Cancer Survivor Study: Objectives, methods, population structure, response rates and initial...

Area of Science:

• Oncology
• Epidemiology
• Public Health

Background:

• Established the British Childhood Cancer Survivor Study to assess long-term health and social outcomes.
• Included individuals diagnosed with childhood cancer in Britain between 1940-1991 who survived at least 5 years.
• Utilized a cohort of 17,981 survivors for population-based studies on late mortality and second malignant neoplasms.

Purpose of the Study:

• To determine the risks of adverse health and social outcomes among childhood cancer survivors.
• To provide data for counseling survivors and planning long-term clinical follow-up.
• To evaluate long-term risks associated with various childhood cancer treatment strategies.

Main Methods:

• A postal questionnaire was distributed to eligible survivors aged 16 years and older.
• Information on initial radiotherapy, chemotherapy, and surgery was collected.
• The study leveraged national registration systems for comprehensive data.

Main Results:

• A total of 10,483 out of 14,836 eligible survivors (71%) completed and returned the questionnaire.
• The response rate from survivors who had the questionnaire mailed by their physician was 79% (10,483 out of 13,211).
• Treatment details including radiotherapy, chemotherapy, and surgery were outlined.

Conclusions:

• This is the largest population-based cohort study investigating a wide range of adverse outcomes in childhood cancer survivors.
• Findings will aid in counseling survivors and planning clinical follow-up.
• The study offers valuable insights into long-term risks of cancer treatments.