Prospective cohort studies of pre-diagnosis BMI (kg/m2) and survival outcomes in colorectal cancer (CRC) patients.

Table 1 is a summary of pre-diagnosis studies. This assessment examined the following items: clarity of BMI measurement before diagnosis, adjustment for intermediate factors (e.g., age, stage and tumor differentiation), duration of follow-up, study endpoints (colorectal cancer-specific mortality and overall mortality), representativeness of the exposed cohort, and adequacy of follow-up of cohorts.Abbreviations: BMI, body mass index; RR, risk ratio; CI, confidence interval; CRC, colorectal cancer; RC, rectal cancer; CC, colon cancer; PMH, post-menopausal hormoneProspective cohort studies of pre-diagnosis BMI (kg/m2) and survival outcomes in colorectal cancer (CRC) patients.