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. 2020 Jun 25;15(6):e0235064. doi: 10.1371/journal.pone.0235064

Table 2. Patient characteristics, by readmission or death status.

Patient Characteristics All (N = 19,941) With 30-day readmission or death (N = 3,019) Without 30-day readmission or death (N = 16,922) P value
Individual characteristics
Age, mean (SD) 62.4 (17.0) 63.5 (16.5) 62.2 (17.1) <0.001
Age (%)
  18–34 9.1 7.6 9.4 0.004
  35–54 20.6 19.4 20.9
  55–64 18.6 18.9 18.6
  65–74 21.8 22.7 21.7
  75–84 24.6 25.4 24.5
  > = 85 5.2 6.0 5.0
Gender (%)
  Female 51.3 51.7 51.2 0.57
  Male 48.7 48.2 48.8
Race (%)
  White 35.3 34.7 35.5 <0.001
  Black 18.0 19.5 17.7
  Asian 10.0 8.2 10.4
  American Indian or Alaska Native 0.1 0.0 0.2
  Native Hawaiian or other pacific islander 0.4 0.5 0.4
  Other 18.9 16.8 19.3
  Unknown 17.2 20.3 16.6
Ethnicity (%)
  Non-Hispanic 51.6 51.7 51.6 0.01
  Hispanic 15.2 16.8 14.9
  Unknown/declined/other 33.2 31.5 33.5
Primary language (%)
  English speaking 76.1 78.8 75.6 <0.001
  Non-English speaking 23.9 21.2 24.4
Marital status (%)
  Married or partnered 36.2 37.2 36.0 0.24
  Single/divorced/widowed 63.8 62.8 64.0
Insurance (%)
  Commercial 14.3 8.7 15.3 <0.001
  Medicare 28.0 29.5 28.7
  Medicaid 24.2 22.8 24.4
  Dual-eligible 28.8 33.9 27.0
  Other public 4.7 5.2 4.6
Admitting Source
  Emergency department 83.9 85.9 83.5 0.001
  Other 16.1 14.1 16.4
BMI (%)
  >30 18.6 20.3 18.6 0.03
Charlson comorbidity score 4.0 5.0 3.9 <0.001
HOSPITAL score, mean 2.7 3.6 2.6 <0.001
  Low risk (0–4) 87.5 74.5 89.8 <0.001
  High risk (> = 5) 12.5 25.5 10.2
Community characteristics
 Median income ($) 103,860 104,402 103,763 0.67
 Unemployment rate (%) 7.84 7.93 7.83 0.31
 % with high school or high school-equivalent diploma 17.82 18.13 17.77 0.10
 % foreign born 31.90 30.98 32.06 <0.001
 % without insurance 11.17 11.27 11.15 0.43
 % dual-eligible 1.37 1.40 1.36 0.17
 Felony rate 19.26 18.44 19.40 0.22
 Walkability score 2.80 2.59 2.84 <0.001
 Gini income inequality coefficient 0.51 0.51 0.51 0.49
 The composite score reflecting household composition and disability 0.39 0.40 0.39 0.03
 The composite score for minority status and language 0.65 0.64 0.65 0.12

P-values indicate the statistical significance of the difference in patient characteristics between patients with 30-day readmission or death and those without 30-day readmission or death.