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Table 1 Patient characteristics prior to admission

From: Risk factors for hospital readmission in older adults within 30 days of discharge – a comparative retrospective study

Characteristic Comparison group (n = 360) Readmitted
<  30 days (n = 360)
p-value
Agea, Mean (SD) 78 (8) 80 (8) 0.072b
Female, % 52 49 0.333c
Number of hospitalisations 12 months, Mean (SD) 1.4 (1.0) 2.0 (1.3) < 0.001b
Number of visits to ER 6 months, Mean (SD) 0.3 (0.7) 0.5 (0.9) 0.001b
Charlson Comorbidity Index, Mean (SD) 6 (3) 8 (3) < 0.001b
Living situation and disability
 Nursing home, % 11 13 0.299c
 Own home, with spouse/other, % 53 43 0.005c
 Own home, alone, % 36 44 0.028c
 Own home with home care, % 16 33 < 0.001c, d
 Help with activities in daily life, % 12 19 0.007c
 Own home with home healthcare, % 10 19 0.002c, f
 Help with medication from nurse, % 16 25 0.004c
 Multi-dose drug dispensing, % 14 22 0.005c, d
 Using walking aid, % 44 60 < 0.001c, e
 Using wheelchair, % 8.4 16 0.003c, d
  1. Abbreviations: ER Emergency Room, SD Standard Deviation
  2. aVariables included in the Charlson Comorbidity Index bStudents t-test cχ2-test dInternal missing 0.3–0.4% eInternal missing 3.1% fInternal missing 8.9%
  3. Significant p-values are indicated in bold.