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. 2011 Sep 1;41(1):80–86. doi: 10.1093/ageing/afr106

Table 3.

Mental health problems

Mental health problems Cognitive impairment, n (%) Mental health problem without cognitive impairment, n (%) Total Estimated prevalence among all admitted patients over 70 (95% CI)
NPI domains moderate to severe Delusions 28 (14) 3 (6) 31 (12) 8% (5–11)
Hallucinations 20 (10) 4 (8) 24 (10) 6% (4–9)
Agitation or aggressive 34 (17) 1 (2) 35 (14)* 9% (6–12)
Depression 67 (34) 17 (32) 84 (34) 22% (18–26)
Anxiety 67 (34) 17 (32) 84 (34) 22% (18–26)
Elation 3 (2) 0 (0) 3 (1) n/a
Apathy 75 (38) 8 (15) 83 (33)* 21% (17–25)
Disinhibition 19 (10) 0 (0) 19 (8)* 5% (3–7)
Irritability 39 (20) 5 (9) 44 (18) 11% (8–14)
Motor behaviour 40 (21) 2 (4) 42 (17)* 11% (8–14)
Difficulty sleeping 65 (33) 18 (34) 83 (33) 21% (17–25)
Appetite 93 (48) 20 (38) 113 (46) 29% (25–33)
CSDD No depression 89 (49) 24 (47) 113 (49)
Possible major depression 67 (37) 22 (43) 89 (39) 24% (20–28)
Definite major depression 24 (13) 5 (10) 29 (13) 8% (5–11)
DRS Delirium 104 (53) 3 (6) 107 (43)** 27% (24–31)
Diagnosed dementia 105 (54) 1 (2) 106 (43)** 27% (23–31)

MMSE, mini-mental state examination; NPI, neuropsychiatric inventory; CSDD, Cornell scale for depression in dementia; DRS, delirium rating scale.

*< 0.05.

**< 0.001.