Hospital Rurality and Gene Expression Profiling for Early-Stage Breast Cancer among Iowa Residents (2010–2018)

Table 5

Proportion with early-stage, HR+, HER2−, LN− female breast cancer receiving chemotherapy by ODX recurrence score.

	Hospital location
	Urban		Large rural		Small rural
	Total	Chemotherapy	Total	Chemotherapy	Total	Chemotherapy
	N	%	N	%	N	%
Test not done	2899	9.5%	483	7.5%	275	7.6%
Low risk	1441	1.9%	232	0.4%	68	1.5%
Intermediate risk	810	29.9%	101	24.8%	30	23.3%
High risk	194	83.5%	31	80.7%	7	84.7%

Abbreviations: HER2−, human epidermal growth factor receptor 2 negative; HR+, hormone receptor-positive; LN−, lymph node negative; ODX, Oncotype DX.