Table 1. Characteristics of person-month sample of Medicaid breast cancer patients.

	Person month observations with the characteristic N = 9,407	Percentage / Mean (sd)
Time varying characteristics
Medical home	3,872	41.1
Blind/disabled	3,753	39.9
Breast cancer therapy
Surgery	571	6.07
Radiation	1,464	15.6
Chemotherapy	829	8.81
Time invariant patient characteristics
Age at diagnosis		49.1 (9.6)
Race
White	4,032	43.1
Black	4,373	46.7
Other	957	10.2
Urban residence	5,809	62.0
National Cancer Institute comorbidity index		0.28 (0.49)
Tumor stage
Stage 0 (in situ)	2,145	22.9
Stage 1	3,652	39.0
Stage 2	2,608	27.9
Stage unknown	957	10.2
Hormone receptor positive	3,707	39.6
Year of diagnosis
2003	2,093	22.4
2004	1,544	16.5
2005	1,879	20.1
2006	1,895	20.2
2007	1,951	20.8
Utilization Measures
Outpatient care visits		2.39 (2.92)
Inpatient hospitalizations		0.05 (0.24)
Emergency department visits		0.11 (0.42)
Medicaid expenditures		$2,168 (3,699)

Notes: sd, standard deviation