Changes in initiation of adjuvant endocrine therapy for breast cancer after state health reform

BMC Cancer

Table 3 Changes in likelihood of initiating AET after state health reform in low-income areas in Massachusetts by age group

	(1)	(2)
	Post-reform: 2007–2010	Low-income areas: lowest tertile ZIP code areas
Breast cancer patients aged 20–64 years	0.035***	0.068***
Breast cancer patients aged 20–64 years	[0.006, 0.065]	[0.038, 0.099]
N	13,906	14,185
Breast cancer patients aged 20–49 years	0.061***	0.072***
Breast cancer patients aged 20–49 years	[0.013, 0.109]	[0.022, 0.122]
N	5588	5542
Breast cancer patients aged 50–64 years	0.018	0.064***
Breast cancer patients aged 50–64 years	[−0.019, 0.055]	[0.025, 0.103]
N	8318	8643

Model (1) re-defines the post-reform period to be 2007–2010. Model (2) re-defines the low-income areas to be the lowest tertile ZIP code areas and the high-income areas to be the highest tertile ZIP code areas in Massachusetts. Both models are based on the main multivariable difference-in-differences regressions in Table 2. All models control for age at diagnosis, marital status, race/ethnicity, stage at diagnosis, and type of surgery
AET Adjuvant Endocrine Therapy
***p-value< 0.01 **p-value< 0.05

ISSN: 1471-2407