Biostatistics Epidemiology

Opportunities for Proposals Using Existing Data

• Comparison of similar data elements collected at baseline for original cohort vs. expansion cohort
• Interval censoring issues: Combining survey outcomes with NDI mortality endpoints
• Task force for feasibility study to recruit for clinical research investigations

Opportunities for Proposals Using Future Data

• Additional data collected for validation purposes
• Assessment of medical record data quality between the original and expanded cohorts
• Differences of participant characteristics between the original and expanded studies
• Changes in treatment characteristics from the original to the expanded studies

Opportunities for Ancillary Studies

• Recruitment strategies for survivors and siblings eligible for CCSS expansion
• Strategies for retention of expansion cohort once enrolled

Request for Submission of Topic-specific RFA

• Methodological issues in long-term follow-up cohort studies (statistical, epidemiological, clinical research methodological issues)
• Collaboration / comparison of data with other studies
  • Mike Hawkins, University of Birmingham
  • Mary McBride, BC Cancer Agency
  • Denmark, Germany, Japan

Topics Under Discussion

Patterns of participation - who responds by mail, telephone, internet?

• Are there differences between groups?
• Can we predict who prefers what method?