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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2021 Oct 25;31(1):132–141. doi: 10.1158/1055-9965.EPI-21-0677

Table 1.

Characteristics of 271 Participants with Invasive Ovarian Clear Cell Carcinoma

N (%)

Study site (country)
 Memorial Sloan Kettering Cancer Center (USA) 64 (24%)
 Mayo Clinic (USA) 56 (21%)
 Cedars Sinai Medical Center (USA) 31 (11%)
 University of Cambridge (United Kingdom) 27 (10%)
 University of Pittsburgh (USA) 23 (9%)
 Westmead Hospital (Australia) 22 (8%)
 Edinburgh (United Kingdom) 20 (7%)
 COEUR (Canada) 13 (5%)
 Brigham and Women’s Hospital (USA) 9 (3%)
 University of Pennsylvania (USA) 6 (2%)
Race, self-reported
 White non-Hispanic 180 (86%)
 Asian 25 (12%)
 Black 4 (2%)
 Other/Unknown 62
Age at diagnosis
 Mean (Range), N 58.1 (31–88), 268
FIGO stage
 Early (I, II) 166 (65%)
 Advanced (III, IV) 91 (35%)
 Unknown 14
Tumor primary site
 Ovary 209 (88%)
 Omentum 4 (2%)
 Pelvis 4 (2%)
 Peritoneum 3 (1%)
 Fallopian tube 1 (<1%)
 Other 17 (7%)
 Unknown 33
Residual disease
 No macroscopic disease 181 (76%)
 Macroscopic disease 57 (24%)
 Unknown 33
Prior endometriosis, self-reported
 Yes 33 (23%)
 No 108 (77%)
 Unknown 130
Primary therapy outcome
 Complete response 157 (80%)
 Partial response 7 (4%)
 Stable disease 9 (5%)
 Progressive disease 23 (12%)
 Unknown 75
Progression within five years
 Yes 137 (55%)
 No 111 (45%)
 Unknown 23
Time to progression among progressors, months
 Mean (Range), N 18.8 (0.03–59.7), 137
Time to last follow-up among non-progressors, months
 Mean (Range), N 51.0 (0.40–60.0), 111
Vital status at five years
 Alive 159 (63%)
 Deceased 94 (37%)
 Unknown 18
Time to last follow-up among living, months
Mean (Range), N 45.7 (0.40–60.0), 159

COEUR, Canadian Ovarian Experimental Unified Resource; FIGO, International Federation of Gynecology and Obstetrics; residual disease following primary debulking surgery.