Patients with OCCC were significantly younger and had early-stage disease more frequently than those with OSC. Baseline characteristics and overall survival (OS) were compared between the OCCC and OSC groups.

Age-standardized incidence rates (ASRs) and annual percent changes (APCs) were calculated. Methods: We extracted information of patients with primary OCCC and OSC from the Korea Central Cancer Registry recorded between 19, including age at diagnosis and the Surveillance, Epidemiology, and End Results summary stage.

Objective: To compare the incidence and survival rates of primary ovarian clear cell carcinoma (OCCC) and ovarian serous carcinoma (OSC) from a nationwide collected database.

8Rare & Pediatric Cancer Branch and Immuno-oncology Branch, Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang, South Korea.

7Department of Cancer Control and Policy, National Cancer Center Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, South Korea.

6Center for Gynecologic Cancer and Center for Clinical Trial, Hospital, National Cancer Center, Goyang, South Korea.

5Department of Health Administration, Yonsei University, Wonju, South Korea.

4Division of Cancer Registration and Surveillance, National Cancer Center, Goyang, South Korea.

3Department of Obstetrics and Gynecology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, South Korea.

2Department of Obstetrics and Gynecology, Pusan National University Yangsan Hospital, Yangsan, South Korea.

1Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea.

Se Ik Kim 1, Hyeong In Ha 2, Kyung Jin Eoh 3, Jiwon Lim 4, Young-Joo Won 4,5* and Myong Cheol Lim 6,7,8*

Occc microsoft office student download