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Table 2 Full HRS-CMS readmission model sample characteristics, by cohort 2008–2015: mean (sd)

From: Is social capital protective against hospital readmissions?

VariableAll (N = 2212)Patients with Dementia (N = 574)Patients who are Dual-Eligible (N = 478)
Years since 2008, years (95% CI)3.4 (3.3,3.5)3.4 (3.2,3.6)3.4 (3.2,3.6)
Readmission N (%)320 (14.5)99 (17.2)76 (15.9)
Unique patients, N1246333255
Demographics
Self-identified race, % (standard deviation)
  White77.1 (42.0)84.8 (35.9)46.7 (49.9)
  Black/African American14.0 (34.7)8.9 (28.5)27.2 (44.5)
  Hispanic3.6 (18.6)3.8 (19.2)10.7 (30.9)
  Other5.3 (22.4)2.4 (15.4)15.5 (36.2)
Married/Partnered, % (standard deviation)40.3 (49.1)31.4 (46.4)27.4 (44.7)
Has children, % (standard deviation)90.7 (29.0)92.7 (26.1)88.9 (31.4)
Wealth quintile, % (standard deviation)
  Lowest40.2 (49.0)43.2 (49.6)82.0 (38.5)
  2nd27.2 (44.5)26.1 (44.0)13.4 (34.1)
  3rd17.5 (38.0)15.5 (36.2)3.8 (19.1)
  4th8.6 (28.0)7.7 (26.6)0.4 (6.5)
  Highest6.5 (24.7)7.5 (26.3)0.4 (6.5)
Education, % (standard deviation)
  Less than high school25.1 (43.4)26.0 (43.9)53.3 (49.9)
  GED or HS graduate35.7 (47.9)37.5 (48.4)30.3 (46.0)
  Some college22.0 (41.4)17.9 (38.4)13.4 (34.1)
  College and above17.1 (37.7)18.6 (39.0)2.9 (16.9)
Disabilities & Care Status
ADL difficulties, % (standard deviation)
  No difficulties55.3 (49.7)39.0 (48.8)35.4 (47.9)
  1–2 difficulties25.4 (43.5)29.1 (45.5)32.4 (46.9)
  3+ difficulties19.3 (39.5)31.9 (46.6)32.2 (46.8)
Nursing home resident at time of HRS interview, % (standard deviation)5.0 (21.8)14.3 (35.0)7.1 (25.7)
Health
BMI, % (standard deviation)
  Normal32.1 (46.7)38.7 (48.7)30.1 (45.9)
  Underweight3.0 (17.1)6.1 (23.9)3.3 (18.0)
  Overweight33.8 (47.3)35.7 (48.0)26.6 (44.2)
  Obese31.0 (46.3)19.5 (39.7)40.0 (49.0)
Comorbidities, % (standard deviation)
  No comorbidities19.1 (39.3)16.4 (37.0)13.0 (33.6)
  1–2 comorbidities54.1 (49.8)52.8 (50.0)54.4 (49.9)
  3+ comorbidities26.8 (44.3)30.8 (46.2)32.6 (46.9)
Age, years (standard deviation)79.7 (11.9)86.0 (8.4)73.8 (13.9)
Gender, % (standard deviation)35.3 (47.8)32.9 (47.0)24.7 (43.2)
  1. HRS-CMS refers to Health and Retirement Study data linked with administrative claims data from Centers for Medicare and Medicaid Services (CMS). Model includes offset for current CMS readmission risk, which includes age, gender, and medical comorbidities. Model included 29 separate dummy variables for comorbidities, which have been aggregated into categories in this table
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