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e21511 Background: End-of-life discussion (EOLd) including information about incurability, prognosis, the site of death, and do-not-resuscitate (DNR) status is considered indispensable for advanced care planning (ACP). However, the preference for EOLd in cancer patients has not been elucidated. Objective: To clarify the preferences of EOLd in Japanese patients with newly diagnosed advanced or recurrent cancer. Methods: A multi-center questionnaire survey was conducted on Japanese adult patients with breast cancer, pancreatic cancer, or sarcoma, who were diagnosed as incurable within the past three months. We asked patients whether they would like to have EOLd with their physician at the time of survey. Factors related to preferences of EOLd were analyzed using chi-square or Mann-Whitney U-test. Results: For 1 year from August 2015, we distributed the questionnaire to 251 patients at five centers. Responses were obtained from 159 patients (45 males, 113 females) (response rate: 63%). The median age was 65 years (range: 29-86). 93 patients (59%) answered they would like to have EOLd, while 60 patients (38%) answered they would not. In univariate analyses, elderly patients (odds ratio [OR]: 1.03; p = 0.027), patients having worse performance status (OR: 1.988; p = 0.03), and with any physical symptoms (OR: 1.533; p = 0.044) preferred to have EOLd. On the other hand, patients who perceived “being able to sufficiently fight the disease” ( p = 0.021) and “living without being aware of the disease” ( p = 0.004) as important were reluctant to have EOLd. 114 patients (72%) answered they wanted to know their life-time prognosis. Employed patients preferred to know their prognosis (OR: 8.919; p = 0.004) while patients who had received chemotherapy did not (OR: 0.313; p = 0.009). Conclusions: Even just after the diagnosis as an incurable disease, more than half of patients with advanced cancer were willing to have EOLd with their treating physician. Patients’ preference of knowing about life-time prognosis was affected by their social and medical experience.

438 Background: Colorectal adenoma is a well-established precursor lesion of colorectal cancer, so the prevention of adenoma may also contribute to the prevention of cancer. Adipocyte secretes hormones, namely adipocytokines, some of which are likely to be associated with malignancies such as colorectal, breast, and prostate gland cancer. Among several adipocytokines, resistin and visfatin have been suggested to be associated with the progression of colon cancer, and they could therefore be good biomarkers for colorectal adenoma and cancer. Methods: Prior to any procedures, healthy volunteers provided their venous blood, from which we obtained the plasma to measure concentrations of adiponectin, visfatin, and resistin. We underwent total colonoscopy, and identified 776 adenoma cases (522 males, 254 females), 734 controls (478 males, 256 females) were selected from those without adenoma. An unconditional logistic regression model was used to estimate odds ratios for colorectal adenoma after adjustment for potential confounders, including body mass index (BMI). Results: We found no positive association between the presence of colorectal adenoma and the levels of either visfatin (P trend: male 0.24, female 0.87), or resistin (P trend: male 0.85, female 0.71). After adjusting for potential confounders, we still saw no association. On the other hand, adiponectin levels showed a correlation with both BMI (P: male