Individual Factors Contributing to Nausea in First-Time Chemotherapy Patients: A Prospective Cohort Study.

Objective: The expectation of developing side effects can enhance the likelihood to develop them - a phenomenon referred to as nocebo effect. Whether nocebo effects can be reduced by lowering negative expectancies, is not clear. The aim of this prospective study was to learn more about the factors contributing to nausea expectancy and their potential role in actual occurrence of nausea in patients undergoing chemotherapy for the first time in their life.