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. 2021 Feb 11;12:952. doi: 10.1038/s41467-021-21257-6

Table 1.

Baseline characteristics of study population.

Variable EC n = 103 PMB n = 113 All n = 216
n (%) n (%) n (%)
Age at diagnosis
  <60 years 24 (23.3) 79 (69.9) 103 (47.7)
  60–70 years 32 (31.1) 18 (15.9) 50 (23.1)
  >70 years 47 (45.6) 16 (14.2) 63 (29.2)
BMI at diagnosis
  <25 kg/m2 15 (14.6) 34 (30.1) 49 (22.7)
  25–29.9 kg/m2 25 (24.3) 29 (25.7) 54 (25.0)
  ≥30 kg/m2 63 (61.2) 46 (40.7) 109 (50.5)
Missing data 4 (3.5) 4 (1.9)
Presenting complaint
 PMB 89 (86.4) 113 (100) 202 (93.5)
 Abnormal bleeding – othera 5 (4.9) 5 (2.3)
 Otherb 9 (8.7) 9 (4.2)
Diagnosis
 Endometrial cancer 100 (97.1) 4 (3.5) 104 (48.1)
 Atypical hyperplasia 1 (1.0) 3 (2.7) 3 (1.4)
 Cervical cancer 2 (1.9) 1 (0.9) 2 (0.9)
 Ovarian cancer 1 (0.9) 1 (0.5)
 Fallopian tube cancer 0 2 (0.9)
 Benign endometrial polyp 31 (27.4) 31 (14.4)
 Benign cervical polyp 6 (5.3) 6 (2.9)
 Vulvovaginal atrophy 39 (34.5) 39 (18.1)
 Unscheduled bleeding on HRT 5 (4.4) 5 (2.3)
 Other 2 (1.8) 2 (0.9)
 No cause for bleeding found 21 (18.6) 21 (9.7)
EC Cases
Histological subtype 58 (58.0) 3 (75.0) 61 (28.2)
  Endometrioid 42 (42.0) 1 (25.0) 43 (20.0)
  Non-endometrioid 12 (12.0) 0 12 (5.6)
    Serous 7 (7.0) 0 7 (2.8)
    Clear cell 15 (15.0) 1 (25.0) 16 (7.4)
    Carcinosarcoma 7 (7.0) 0 7 (3.3)
    Mixed Mucinous 1 (1.0) 0 1 (0.5)
EC Cases
Grade 1 36 (36.0) 2 (50.0) 38 (17.6)
              2 17 (17.0) 1 (25.0) 18 (8.4)
              3 47 (47.0) 1 (25.0) 48 (22.2)
EC Cases
FIGO (2009) Stage 1 65 (65.0) 3 (75.0) 68 (31.5)
2 13 (13.0) 0 13 (6.0)
3 18 (18.0) 1 (25.0) 19 (8.8)
4 4 (4.0) 0 4 (1.9)
Lymphovascular space invasion
  Absent 58 (58.0) 2 (50.0) 60 (27.8)
  Present 35 (35.0) 2 (50.0) 37 (17.1)
 Missing datac 7 (7.0) 7 (3.2)
Depth of myometrial invasion
  <50% 53 (53.00) 2 (50.0) 55 (25.5)
  ≥50% 41 (41.00) 2 (50.0) 43 (19.9)
 Missing datac 6 (6.0) 6 (2.8)

EC endometrial cancer, PMB postmenopausal bleeding, BMI body mass index, HRT hormone replacement therapy.

aAbnormal pre- or peri-menopausal bleeding.

bHaematuria, haematocolpos, pelvic mass, abdominal bloating or pain, subfertility.

cIncluding five women who did not have surgery, e.g. for advanced disease, fertility-sparing or medical fitness reasons.