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Table 2 Summary of characteristics of included population (incident admissions admitted from private residence and discharged alive) (n = 5570)

From: Living at home after emergency hospital admission: prospective cohort study in older adults with and without cognitive spectrum disorder

  No cognitive spectrum disorders Any cognitive spectrum disorders Cognitive spectrum disorders
Delirium alone Known dementia alone Delirium superimposed on known dementia Unspecified cognitive impairment
No. (%) No. (%) No. (%) No. (%) No. (%) No. (%)
N = 3903 N = 1667 N = 821 N = 335 N = 285 N = 226
(70.1%; 95%CI 68.9–71.3 of all patients) (29.9%; 95%CI 28.8–31.1 of all patients) (14.7%; 95%CI 13.8–15.7 of all patients) (6.0%; 95%CI 5.4–6.7 of all patients) (5.1%; 95%CI 4.6–5.7 of all patients) (4.1%; 95%CI 3.6–4.6 of all patients)
Age
65–74 (n = 1777) 1454 (37.3) 323 (19.4) 207 (25.2) 47 (14.0) 31 (10.9) 38 (16.8)
75–84 (n = 2318) 1635 (41.9) 683 (41.0) 323 (39.3) 146 (43.6) 122 (42.8) 92 (40.7)
≥ 85 (n = 1475) 814 (20.9) 661 (39.7) 291 (35.4) 142 (42.3) 132 (46.3) 96 (42.5)
Sex
Women (n = 3138) 2143 (54.9) 995 (59.6) 473 (57.6) 207 (61.8) 182 (63.9) 133 (58.8)
Men (n = 2432) 1760 (45.1) 672 (40.3) 348 (42.4) 128 (38.2) 103 (36.1) 93 (41.2)
Deprivation SIMD quintilea
1 most deprived (n = 1151) 824 (21.1) 327 (19.6) 179 (21.8) 60 (17.9) 44 (15.4) 44 (19.5)
2 (n = 1473) 1013 (26.0) 460 (27.6) 233 (28.4) 81 (24.2) 71 (24.9) 75 (33.2)
3 (n = 1266) 884 (22.6) 382 (22.9) 178 (21.7) 94 (28.1) 61 (21.4) 49 (21.7)
4 (n = 853) 579 (14.8) 274 (16.4) 129 (15.7) 51 (15.2) 66 (23.2) 28 (12.4)
5 most affluent (n = 827) 603 (15.5) 224 (13.4) 102 (12.4) 49 (14.6) 43 (15.1) 30 (13.3)
Charlson Comorbidity Index (CCI)b
CCI 0 (n = 1424) 950 (24.3) 474 (28.4) 210 (25.6) 113 (33.7) 101 (35.4) 50 (22.1)
CCI 1 (n = 1496) 1082 (27.7) 414 (24.8) 209 (25.5) 85 (25.4) 56 (19.6) 64 (28.3)
CCI 2 to 5 (n = 2233) 1548 (39.7) 685 (41.1) 350 (42.6) 124 (37.0) 118 (41.4) 93 (41.2)
CCI ≥6 (n = 417) 323 (8.3) 94 (5.6) 52 (6.3) 13 (3.9) 10 (3.5) 19 (8.4)
No. of medications
0–5 (n = 1746) 1216 (31.2) 530 (31.8) 244 (29.7) 107 (31.9) 108(37.9) 71 (31.4)
6–10 (n = 2204) 1552 (39.8) 652 (39.1) 334 (40.7) 134 (40.0) 105 (36.8) 79 (35.0)
> 10 (n = 1620) 1135 (29.1) 485 (29.1) 243 (29.6) 94 (28.1) 72 (25.3) 76 (33.6)
Activities of daily living (ADL)c
Persistently high ADL (n = 1956) 1611 (62.3) 345 (24.7) 155 (24.7) 77 (28.5) 44 (15.9) 69 (31.4)
Changed ADL (n = 1341) 742 (28.7) 599 (43.0) 322 (51.4) 76 (28.1) 107 (38.6) 94 (42.7)
Persistently low ADL (n = 681) 231 (8.9) 450 (32.3) 150 (23.9) 117 (43.3) 126 (45.5) 57 (25.9)
Discharge destination
Private home (n = 5334) 3848 (98.6) 1486 (89.1) 769 (93.7) 299 (89.3) 210 (73.7) 208 (92.0)
New care home admission (n = 236) 55 (1.4) 181 (10.9) 52 (6.3) 36 (10.7) 75 (26.3) 18 (8.0)
  1. aSIMD quintile: Scottish Index of Multiple Deprivation
  2. bCharlson Comorbidity Index groups based on ICD10 coding in SMR01 data, omitting dementia
  3. cActivities of daily living classification based on Katz Index score on admission and 3 months prior to admission; data available for 3978 (71%)