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. Author manuscript; available in PMC: 2022 Jul 6.

Published in final edited form as: Arch Pathol Lab Med. 2021 Jun 1;145(6):728–735. doi: 10.5858/arpa.2020-0293-OA

Table 2.

ER and PR Results With Corresponding HER2 Immunohistochemical Staining Results

	HER2 Immunohistochemistry, n (%)		Total	P Value
	0–2+	3+	Total	P Value
ER IHC (H-score)				.35
0–100	3 (25)	9 (75)	12
101–200	10 (52.6)	9 (47.4)	19
201–300	20 (37)	34 (63)	54
PR IHC (H-score)				.19
0–100	9 (25.7)	26 (74.3)	35
101–200	10 (58.8)	7 (41.2)	17
201–300	14 (42.4)	19 (57.6)	33
ER/PR combined (H-score)
ER low/PR low	1 (12.5)	7 (87.5)	8	.14
ER high/PR high	11 (40.7)	16 (59.3)	27	.82
All others	21 (42)	29 (58)	50

Abbreviations: ER, estrogen receptor; HER2, human epidermal growth factor receptor type 2; IHC, immunohistochemistry; PR, progesterone receptor.