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Table 3 Readmission or death by 30 days and by 1 year after discharge by cognitive statusa

From: Epidemiology and outcomes of people with dementia, delirium, and unspecified cognitive impairment in the general hospital: prospective cohort study of 10,014 admissions

  Readmission or death by 30 days from discharge Prevalence (95% CI) Readmission or death by 1 year from discharge Prevalence (95% CI)
All incident admissions discharged alive (n = 6465) 17.9 (17.0–18.9) 53.0 (51.8–54.2)
Did not receive OPRAA assessment (n = 1530) 15.4 (13.7–17.3)c 45.8 (43.3–48.3)d
Received OPRAA assessment (n = 4935) 18.7 (17.6–19.8) 55.2 (53.8–56.6)
No cognitive spectrum disorder (n = 3260) 17.4 (16.1–18.7)e 51.5 (49.8–53.2)f
Cognitive spectrum disorder (n = 1675) 21.2 (19.3–23.2) 62.4 (60.0–64.7)
Dementia no delirium (group 1 n = 385) 23.9 (19.9–28.4)g 68.3 (63.5–72.8)h
Delirium no dementia (group 2 n = 752) 20.9 (18.1–24.0) 57.4 (53.9–60.9)
Delirium superimposed on dementia (group 3 n = 327) 19.3 (15.4–23.9) 64.8 (59.5–69.8)
Unspecified cognitive impairmentb (group 4 n = 211) 20.4 (15.5–26.3) 65.4 (58.8–71.5)
  1. aExcludes in hospital mortality (n = 736) as only patients discharged alive are included
  2. bAMT score <8, no delirium, no known dementia
  3. cDifference = 3.3 (95%CI 1.1-5.3) P = 0.003
  4. dDifference = 9.4 (95%CI 6.6-12.3) P < 0.001
  5. eDifference = 3.8 (95%CI 1.5-6.2) P = 0.001
  6. fDifference = 10.9 (95%CI 8.0-13.8) P < 0.001
  7. gPairwise comparisons not significant (P > 0.444);
  8. hGroup 1 significantly different from group 2 (P = 0.002), all other pairwise comparisons not significant (P > 0.106)
  9. OPRAA Older Persons Routine Acute Assessment