Patterns of prescription drug expenditures and medication adherence among medicare part D beneficiaries with and without the low-income supplement

Table 2 Characteristics of patients in residential census tracts stratified by type of medicare part D coverage (n = 344,817)

	LIS N = 25,226	Non-LIS/GC N = 29,289	Non-LIS/Non-GC N = 290,302
Median household income (SD)	$42,412 (19,206)^a,b	$51,022 (19,878)^a	$51,459 (22,397)
Education level (%)
Percentage of residents with < high school education	25.1^a,b	16.4^a	17.8
Percentage of residents with < college degree	74.3^a,b	65.3^a	66.8
Proportion of residents with linguistic isolation	8.1^a,b	5.3^a	5.5
Race/Ethnicity (%)
White	72.6^a,b	80.7^a	80.3
Latino	29.4^a,b	20.2^a	19.8
Other race	15.4^a,b	10.5^a	9.9
African American	7.9^a,b	3.9^a	5.0
Asian/Pacific Islander	5.7^a,b	6.9^a	6.1
American Indian	2.4^a,b	2.1^a	2.0

ISSN: 1472-6963