Racial Differences in the Use of Adjuvant Chemotherapy for Breast Cancer in a Large Urban Integrated Health System

Table 2

Proportion of persons or households in each quintile of deprivation index^a by the five parameters used to create the deprivation index.

DI Quintile	Unemployment^b	No vehicle^c	Poverty^b	No Telephone^c	Overcrowding^c
Q5	22.5	29.9	35.1	10.4	9.5
Q4	9.2	12.7	14.6	3.4	5.4
Q3	4.8	6.7	6.3	1.5	2.9
Q2	3.7	4.1	3.9	0.7	1.8
Q1	2.5	1.9	2.1	0.4	0.9

^aThe deprivation index (DI) is a measure of socioeconomic status that captures multiple dimensions of the economic and social conditions of neighborhoods including unemployment, poverty, overcrowding, telephone, and automobile availability. The DI can range from 0 to 1, with a value of 0 indicating no deprivation (i.e., no unemployment, all households have a phone and automobile, no individual lives below poverty, and the presence of households with more than one room per person, and a value of 1 indicating maximum deprivation.
^b% of persons.
^c% of households.