Table 3

 Comparison of demography and morbidity between those taking and not taking antipsychotic drugs

Taking antipsychoticsNot taking antipsychoticsStatistics95% CI/IQR
ADAS-cog, Alzheimer’s Disease Assessment Scale—Cognitive Subscale; IQR, interquartile range; MMSE, Mini-Mental State Examination; NPI, Neuropsychiatric Inventory; SIB, severe impairment battery; t, T test; U, Mann–Whitney U test.
*p<0.05.
**p⩽0.005.
***p = 0.001.
Age, mean (SD)80.4 (7.3)80.8 (7.5)t = 0.395% CI −2.6 to 3.4
Sex, n (%) female22 (73.3)96 (72.7)χ2 = 0.00595% CI 0.4 to 2.5
SIB score at baseline, median (range)91 (21–99)94 (11–99)*U = 1405.5IQR 87–97
MMSE score, median (range)15 (3–25)19 (4–29)**U = 1154.5IQR 13–22
ADAS-cog score, median (range)34.5 (13–67)27.5 (8–65)*U = 1160.5IQR 20.25–40.75
Years of education, mean (SD)9.2 (2.2)9.5 (1.5)t = 0.795% CI −0.7 to 1.4
Total NPI score, median (range)11 (0–79)14 (0–69)U = 1964.5IQR 7–23
NPI delusions score, median (range)0 (0–12)0 (0–12)U = 1930.5IQR 0 to 1.3
NPI hallucinations score, median (range)0 (0–4)0 (0–12)U = 1954.0IQR 0–0
NPI agitation score, median (range)1 (0–12)0 (0–12)U = 1709.0IQR 0–2
NPI sleep disturbance score, median (range)0 (0–12)0 (0–12)U = 1899.5IQR 0–2
Cholinesterase inhibitors prescribed, n (%)12 (40)92 (69.7)***χ2 = 9.495% CI 0.1 to 0.7