INTRODUCTION
ADVANCED CANCER
Between 70% and 90% of Chinese advanced cancer patients are hospitalized and implicitly receive life‐extension (LE) treatments during the last 3 months of their life.Given the importance of treatment choices embedded in ADs, it is important to understand how the structure of ADs might affect patient preferences. Previous studies found that using default options, or an already checked treatment choice, shaped patients' choices, and it follows that patients might change their choices with different, or no, default options.Although the effect of the default option on patients has been verified in several studies,