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. 2016 Aug 1;11(8):e0160085. doi: 10.1371/journal.pone.0160085

Table 1. Characteristics of male US state prisoners with a chronic health condition (N = 643,290)*.

Lower Upper
% 95% CI 95% CI
Age (years)
 18–50 88.7 86.2 91.3
 51–64 11.3 10.1 12.5
Race
 White 40.0 37.5 42.5
 Black 37.8 35.7 39.8
 Other 22.3 20.8 23.7
Education
 No HS or GED 33.9 32.1 35.7
 HS or GED 52.5 50.4 54.6
 post HS or GED 13.3 12.3 14.2
Median annual Income ($)** 18,531 17,897 19,165
Homeless at arrest
 Yes 2.2 1.8 2.7
Received SSA benefits in the month prior to arrest
 Yes 7.0 6.2 7.8
Ever received SSA benefits
 Yes 12.3 11.3 13.4
Medicaid expansion state
 Yes 50.9 46.6 55.2
Chronic condition
 Hypertension 35.2 33.4 36.9
 Diabetes 7.5 6.7 8.2
 Heart disease 15.2 14.1 16.3
 Stroke 7.4 6.6 8.3
 Asthma 24.1 22.8 25.5
 Kidney disease 9.8 8.9 10.7
 Arthritis 25.5 23.8 27.1
 Hepatitis 15.8 14.5 17.2
 Cirrhosis 3.0 2.5 3.4
 Cancer 2.8 2.3 3.2
 HIV 2.0 1.5 2.5
 Paralysis 10.5 9.5 11.4
 Depression 30.8 28.6 33.0
 Anxiety Disorder 11.0 9.8 12.2
 PTSD 8.8 7.9 9.8
 Bipolar 15.0 13.7 16.3
 Psychotic disorder 7.7 6.7 8.7
 Personality Disorder 10.0 8.9 11.0

* weighted estimates, based on 2004 survey data

** Respondents reported income by selecting one of several income categories (e.g. No income, $1–100, $200–400, etc.) for the month prior to their incarceration.

For the main analysis, we assigned inmates to the average of the lowest and highest value within selected category. The average values were multiplied by 12 to estimate annual income and adjusted for inflation to 2014 dollars. For the 16% missing income data, we imputed values as the median income of prisoners of a similar age, race, and education Abbreviations: Confidence interval (CI); High School (HS) or General Educational Development/high school degree equivalency (GED); Post-traumatic stress disorder (PTSD);Social Security Administration (SSA)