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. 2012 Jan 31;27(7):825–830. doi: 10.1007/s11606-012-1984-x

Table 1.

Characteristics of Study Population (n = 526)

Characteristic n = 526(%)*
Male 285 (54.2)
African American† 458 (87.4)
Age in years, mean ± SD 45 ± 1
Length of stay in hospital, median (IQR) 214
Insurance Type
  Medicaid 263 (50.0)
  Medicare 146(27.8)
  No Payer 73(13.9)
  Private Payer 44 (8.4)
Principal Diagnosis (ICD9)‡
  HBSS Disease w/ Crisis (282.62) 38 (7.2)
  HIV (042) 22 (4.2)
  Congestive heart failure, unspecified (428.0) 20 (3.8)
  Due to vascular device, implant, and graft (996.62) 17 (3.2)
  Missing 3 (0.6)
Secondary Diagnosis (ICD9)
  Tobacco use disorder (305.1) 148 (28.1)
  Essential hypertension, unspecified (401.9) 130 (24.7)
  Substance abuse§ (305.0, 305.5, 305.6, 305.9) 111 (21.1)
  Psychological disorders || (295.00-302.9, 307.0-190) 89 (16.9)
  Diabetes mellitus (250.0) 78 (14.8)

*Except for mean and length of stay which are reported as mean ± SD and median (IOR)

†White 6.3%, Hispanic 1.6%

‡International Statistical Classification of Diseases and Related Health Problems (World Health Organization 1977)

§Alcohol Abuse, Opioid Abuse, Cocaine Abuse, Other Mixed or Unspecified Drug Abuse

|| Includes all ICD-9 Mental Disorders: schizophrenic disorders, bipolar disorder, depression, anxiety, etc; does not included drug induced mental disorders like alcohol withdrawal