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Table 1 Characteristics of the Sample in Two Massachusetts Urban Safety Net Hospital Systems, 2005–2013

From: Is insurance instability associated with hypertension outcomes and does this vary by race/ethnicity?

Variablen = 43,785
Age (years) (mean (SD))47.4 (10.9)
Male20,178 (46.1)
Race
 Non-Hispanic White12,520 (28.6)
 Hispanic3220 (7.4)
 Black/African-American25,221 (57.6)
 Asian/Asian Pacific Islander2824 (6.4)
Charlson Comorbidity Score
 023,764 (54.3)
 111,155 (25.5)
  ≥ 28866 (20.2)
Percent in Census Tract High School Graduation or Higher (mean (SD))82.3 (10.3)
Median Census Tract Income (2014 dollars, mean (SD))$57,606 ($25,571)
Location
 Healthcare System A23,454 (53.6)
 Healthcare System A Affiliated Health Centers16,180 (37.0)
 Healthcare System B4151 (9.4)
  1. Note: Results are frequency (%) unless otherwise indicated. In the main sample, sex was missing for 1 person, and census tract education and income were missing for 3195 people (7%)
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