Characteristics | Vulvar cancer | Cervical cancer | Ovarian cancer | Endometrial cancer | ||||||||
EC (n=30) | No EC (n=161) | P* | EC (n=194) | No EC (n=747) | P* | EC (n=383) | No EC (n=1456) | P* | EC (n=972) | No EC (n=3503) | P* | |
Age at diagnosis, n (%) | 0.4 | 0.4 | <0.001 | <0.001 | ||||||||
44 or less | 4 (13.3) | 25 (15.5) | 100 (51.5) | 426 (57.0) | 76 (19.8) | 388 (26.6) | 121 (12.4) | 473 (13.5) | ||||
45 to 49 | 6 (20.0) | 33 (20.5) | 31 (16.0) | 126 (16.9) | 59 (15.4) | 241 (16.6) | 103 (10.6) | 439 (12.5) | ||||
50 to 53 | 3 (10.0) | 38 (23.6) | 19 (9.8) | 66 (8.8) | 55 (14.4) | 255 (17.5) | 121 (12.4) | 619 (17.7) | ||||
54 to 57 | 8 (26.7) | 29 (18.0) | 19 (9.8) | 49 (6.6) | 78 (20.4) | 274 (18.8) | 250 (25.7) | 904 (25.8) | ||||
58 to 63 | 9 (30.0) | 36 (22.4) | 25 (12.9) | 80 (10.7) | 115 (30.0) | 298 (20.5) | ||||||
Health insurance plan type, n (%) | 0.4 | 0.644 | 0.9 | <0.001 | ||||||||
HMO | 5 (16.7) | 15 (9.3) | 24 (12.4) | 111 (14.9) | 64 (16.7) | 227 (15.6) | 131 (13.5) | 553 (15.8) | ||||
PPO | 16 (53.3) | 101 (62.7) | 106 (54.6) | 405 (54.2) | 208 (54.3) | 806 (55.4) | 508 (52.3) | 2008 (57.3) | ||||
Other† | 9 (30.0) | 45 (28.0) | 64 (33.0) | 231 (30.9) | 111 (29.0) | 423 (29.1) | 333 (34.3) | 942 (26.9) | ||||
Region, n (%) | 0.002 | 0.7 | <0.001 | <0.001 | ||||||||
Northeast | 5 (16.7) | 23 (14.3) | 34 (17.5) | 112 (15.0) | 61 (15.9) | 254 (17.4) | 186 (19.1) | 615 (17.6) | ||||
North central | 16 (53.3) | 35 (21.7) | 45 (23.2) | 158 (21.2) | 71 (18.5) | 270 (18.5) | 274 (28.2) | 791 (22.6) | ||||
South | 6 (20.0) | 81 (50.3) | 79 (40.7) | 338 (45.2) | 140 (36.6) | 659 (45.3) | 299 (30.8) | 1454 (41.5) | ||||
West | 3 (10.0) | 22 (13.7) | 36 (18.6) | 138 (18.5) | 111 (29.0) | 271 (18.6) | 212 (21.8) | 639 (18.2) | ||||
Unknown | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.1) | 0 (0.0) | 2 (0.1) | 1 (0.1) | 4 (0.1) | ||||
Charlson Comorbidity Index score, n (%) | 0.6 | <0.001 | 0.7 | 0.2 | ||||||||
0 | 26 (86.7) | 144 (89.4) | 174 (89.7) | 717 (96.0) | 348 (90.9) | 1332 (91.5) | 806 (82.9) | 2965 (84.6) | ||||
1+ | 4 (13.3) | 17 (10.6) | 20 (10.3) | 30 (4.0) | 35 (9.1) | 124 (8.5) | 166 (17.1) | 538 (15.4) | ||||
Metastatic status, n (%)‡ | 0.9 | 0.003 | <0.001 | 0 | ||||||||
Non-metastatic | 27 (90.0) | 146 (90.7) | 150 (77.3) | 643 (86.1) | 178 (46.5) | 922 (63.3) | 853 (87.8) | 3188 (91.0) | ||||
Metastatic | 3 (10.0) | 15 (9.3) | 44 (22.7) | 104 (13.9) | 205 (53.5) | 534 (36.7) | 119 (12.2) | 315 (9.0) | ||||
Treatment group, n (%) | 0.9 | 0.2 | <0.001 | <0.001 | ||||||||
Surgery only | 26 (86.7) | 136 (84.5) | 111 (57.2) | 476 (63.7) | 99 (25.8) | 662 (45.5) | 755 (77.7) | 2904 (82.9) | ||||
Surgery with adjuvant treatment | 4 (13.3) | 24 (14.9) | 50 (25.8) | 154 (20.6) | 244 (63.7) | 708 (48.6) | 202 (20.8) | 550 (15.7) | ||||
Chemotherapy, radiation, or chemoradiation only | 0 (0.0) | 1 (0.6) | 33 (17.0) | 117 (15.7) | 40 (10.4) | 86 (5.9) | 15 (1.5) | 49 (1.4) | ||||
Adverse events, n (%) | 0.2 | 0.4 | 0.04 | 0.7 | ||||||||
None | 28 (93.3) | 127 (78.9) | 177 (91.2) | 659 (88.2) | 264 (68.9) | 1094 (75.1) | 814 (83.7) | 2972 (84.8) | ||||
1 | 2 (6.7) | 33 (20.5) | 14 (7.2) | 78 (10.4) | 106 (27.7) | 315 (21.6) | 140 (14.4) | 474 (13.5) | ||||
2+ | 0 (0.0) | 1 (0.6) | 3 (1.5) | 10 (1.3) | 13 (3.4) | 47 (3.2) | 18 (1.9) | 57 (1.6) | ||||
Year of diagnosis, n (%) | 0.5 | 0.8 | 0.031 | 0.2 | ||||||||
2009 | 4 (13.3) | 14 (8.7) | 14 (7.2) | 67 (9.0) | 22 (5.7) | 122 (8.4) | 90 (9.3) | 296 (8.4) | ||||
2010 | 3 (10.0) | 10 (6.2) | 14 (7.2) | 76 (10.2) | 33 (8.6) | 126 (8.7) | 80 (8.2) | 339 (9.7) | ||||
2011 | 0 (0.0) | 11 (6.8) | 15 (7.7) | 61 (8.2) | 35 (9.1) | 149 (10.2) | 101 (10.4) | 357 (10.2) | ||||
2012 | 5 (16.7) | 17 (10.6) | 20 (10.3) | 64 (8.6) | 30 (7.8) | 150 (10.3) | 92 (9.5) | 384 (11.0) | ||||
2013 | 1 (3.3) | 18 (11.2) | 17 (8.8) | 68 (9.1) | 32 (8.4) | 115 (7.9) | 96 (9.9) | 358 (10.2) | ||||
2014 | 2 (6.7) | 16 (9.9) | 17 (8.8) | 72 (9.6) | 18 (4.7) | 120 (8.2) | 81 (8.3) | 363 (10.4) | ||||
2015 | 5 (16.7) | 14 (8.7) | 33 (17.0) | 98 (13.1) | 41 (10.7) | 154 (10.6) | 126 (13.0) | 428 (12.2) | ||||
2016 | 4 (13.3) | 27 (16.8) | 35 (18.0) | 123 (16.5) | 87 (22.7) | 260 (17.9) | 165 (17.0) | 515 (14.7) | ||||
2017 | 6 (20.0) | 34 (21.1) | 29 (14.9) | 118 (15.8) | 85 (22.2) | 260 (17.9) | 141 (14.5) | 463 (13.2) |
*P values were derived using the χ2 test or Fisher’s exact test when appropriate.
†Other health insurance plans include comprehensive, point-of-service, point-of-service with capitation, high-deductible, and exclusive-provider-organization health plans.
‡Metastatic status was derived using ICD 9/ICD 10 codes.
EC, employment change; HMO, health maintenance organization; ICD 9/ICD 10, International Classification of Diseases 9th and 10th editions; PPO, preferred provider organization.