title: Comparison of Survival Rates, Tumor Stages, and Localization in between Obese and Nonobese Patients with Gastric Cancer.
abstract: Purpose. In this study we tried to determine the association between body-mass index (BMI), survival rate, and the stage of tumor at the time of diagnosis in patients with gastric cancer. Methods. A total of 270 gastric cancer patients' hospital records were retrospectively evaluated. Patients were grouped according to their BMI at the time of tumor diagnosis. Tumor stages at admission were compared according to their BMI values. Results. There were no differences in OS among BMI subgroups (p = 0.230). The percent of patients with stage III tumor was significantly higher in nonobese while the percent of stage IV tumor was surprisingly higher in obese patients (p was 0.011 and 0.004, resp.). Percent of patients who did not have any surgical intervention was significantly lower in overweight and obese patients than normal and/or underweight patients. Conclusions. At the time of diagnosis, obese patients had significantly higher percent of stage IV tumor than nonobese patients. Despite of that, there were no differences in survival rates among BMI subgroups. Our study results are consistent with "obesity paradox" in gastric cancer patients. We also did not find any relationship between BMI and localization of gastric tumor.
authors.affiliation: Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Hakan
authors.identifier: 0000-0002-9208-2693
authors.initials: H
authors.lastname: Kocoglu
authors.affiliation: Department of Internal Medicine, Izmir Bozyaka Education and Research Hospital, 35170 Izmir, Turkey.
authors.forename: Hakan
authors.initials: H
authors.lastname: Dogan
authors.affiliation: Department of Internal Medicine, Istanbul Bilim University, Florence Nightingale Hospital, 34394 Istanbul, Turkey.
authors.forename: Basak
authors.initials: B
authors.lastname: Oguz
authors.affiliation: Department of Internal Medicine, Umraniye Education and Research Hospital, 34766 Istanbul, Turkey.
authors.forename: Sibel
authors.initials: S
authors.lastname: Ocak Serin
authors.affiliation: Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Yildiz
authors.initials: Y
authors.lastname: Okuturlar
authors.affiliation: Department of Medical Oncology, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Meral
authors.initials: M
authors.lastname: Gunaldi
authors.affiliation: Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Betul
authors.initials: B
authors.lastname: Erismis
authors.affiliation: Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Bahar
authors.initials: B
authors.lastname: Ozdemir
authors.affiliation: Department of Medical Oncology, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Deniz
authors.initials: D
authors.lastname: Tural
authors.affiliation: Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Hursitoglu
authors.affiliation: Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Ozlem
authors.initials: O
authors.lastname: Harmankaya
authors.affiliation: Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, 34147 Istanbul, Turkey.
authors.forename: Abdulbaki
authors.initials: A
authors.lastname: Kumbasar