Table 1.

PR and ERα expression by histologic subtype, morphology, grade, and stage

All casesPR+PR−ERα+ERα−ERα+/PR+ERα−/PR−ERα+/PR−ERα−/PR+
Total, n (%)*157 (100%)44 (28%)113 (72%)78 (50%)79 (50%)22 (14%)57 (36%)56 (36%)22 (14%)
Histology, n (%)
    Serous80 (51%)19 (43%)61 (54%)43 (55%)37 (47%)7 (32%)25 (44%)36 (64%)12 (55%)
    Endometrioid34 (22%)17 (39%)17 (15%)19 (24%)15 (19%)10 (45%)8 (14%)9 (16%)7 (32%)
    Mucinous15 (10%)5 (11%)10 (9%)5 (6%)10 (13%)3 (14%)8 (14%)2 (4%)2 (9%)
    Clear cell15 (10%)0 (0%)15 (13%)3 (4%)12 (15%)0 (0%)12 (21%)3 (5%)0 (0%)
    Other13 (8%)3 (7%)10 (9%)8 (10%)5 (6%)2 (9%)4 (7%)6 (11%)1 (5%)
    P0.0030.07
Morphology, n (%)
    Borderline18 (11%)9 (20%)9 (8%)9 (12%)9 (11%)5 (23%)5 (9%)4 (7%)4 (18%)
    Invasive139 (89%)35 (78%)104 (92%)69 (88%)70 (89%)17 (77%)52 (91%)52 (93%)18 (82%)
    P0.051.00
Grade, n (%)
    I14 (11%)10 (30%)4 (5%)8 (13%)6 (9%)4 (25%)0 (0%)4 (9%)6 (35%)
    II27 (21%)9 (27%)18 (19%)12 (20%)15 (23%)6 (38%)12 (24%)6 (13%)3 (18%)
    III86 (68%)14 (42%)72 (77%)41 (67%)45 (68%)6 (38%)37 (76%)35 (78%)8 (47%)
    P<0.0010.76
Stage, n (%)
    I/II69 (44%)27 (61%)42 (37%)31 (40%)38 (48%)17 (77%)28 (49%)14 (25%)10 (45%)
    III/IV88 (56%)17 (39%)71 (63%)47 (60%)41 (52%)5 (23%)29 (51%)42 (75%)12 (55%)
    P0.0070.34
  • * Percentages may not add up to 100% due to rounding.

  • Other includes Brenner, carcinosarcoma, mixed, other, or unknown.

  • P value was calculated using Fisher's exact test comparing PR+ versus PR− and ERα + versus ERα−.