TY - JOUR
T1 - Utility of extrapyramidal signs and psychosis as predictors of cognitive and functional decline, nursing home admission, and death in Alzheimer’s disease
T2 - Prospective analyses from the predictors study
AU - Stern, Y.
AU - Albert, M.
AU - Brandt, J.
AU - Jacobs, D. M.
AU - Tang, M. X.
AU - Marder, K.
AU - Bell, K.
AU - Sano, M.
AU - Devanand, D. P.
AU - Bylsma, F.
AU - Lafleche, G.
PY - 1994/12
Y1 - 1994/12
N2 - Objective To examine whether either extrapyramidal signs or psychotic features are associated with more rapid progression of Alzheimer’s disease. Background It has been unclear whether extrapyramidal signs and psychosis are predictors of faster course or are simply late signs. Methods Two hundred thirty-six patients with mild Alzheimer’s disease were recruited in three cities and followed semiannually.. Results Using Cox proportional hazards models that adjusted for age, sex, disease severity, and estimated duration of illness at study entry, the presence of extrapyramidal signs at entry was associated with higher relative risk (RR) of reaching moderate cognitive (RR = 2.35, 95% CI = 1.12 to 4.92) or functional (RR = 2.31, 95% CI = 1.37 to 3.90) severity, nursing home entry (RR = 2.51, 95% CI = 1.32 to 4.76), or death (RR = 3.04, 95% CI = 1.31 to 7.05). Psychosis predicted only the functional end point (RR = 1.85, 95% CI = 1.18 to 2.90). Using regression models, modified Mini-Mental State scores declined 1.30 points (95% CI = 0.16 to 2.44) per 6-month interval, more among patients with than those without extrapyramidal signs; patients with psychosis declined 1.15 (95% CI = 0.52 to 1.77) more mMMS points per interval. Conclusions This study confirms extrapyramidal signs and psychosis as robust predictors of disease end points and rapid progression in Alzheimer’s disease.
AB - Objective To examine whether either extrapyramidal signs or psychotic features are associated with more rapid progression of Alzheimer’s disease. Background It has been unclear whether extrapyramidal signs and psychosis are predictors of faster course or are simply late signs. Methods Two hundred thirty-six patients with mild Alzheimer’s disease were recruited in three cities and followed semiannually.. Results Using Cox proportional hazards models that adjusted for age, sex, disease severity, and estimated duration of illness at study entry, the presence of extrapyramidal signs at entry was associated with higher relative risk (RR) of reaching moderate cognitive (RR = 2.35, 95% CI = 1.12 to 4.92) or functional (RR = 2.31, 95% CI = 1.37 to 3.90) severity, nursing home entry (RR = 2.51, 95% CI = 1.32 to 4.76), or death (RR = 3.04, 95% CI = 1.31 to 7.05). Psychosis predicted only the functional end point (RR = 1.85, 95% CI = 1.18 to 2.90). Using regression models, modified Mini-Mental State scores declined 1.30 points (95% CI = 0.16 to 2.44) per 6-month interval, more among patients with than those without extrapyramidal signs; patients with psychosis declined 1.15 (95% CI = 0.52 to 1.77) more mMMS points per interval. Conclusions This study confirms extrapyramidal signs and psychosis as robust predictors of disease end points and rapid progression in Alzheimer’s disease.
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U2 - 10.1212/wnl.44.12.2300
DO - 10.1212/wnl.44.12.2300
M3 - Article
C2 - 7991116
AN - SCOPUS:0028061589
SN - 0028-3878
VL - 44
SP - 2300
EP - 2307
JO - Neurology
JF - Neurology
IS - 12
ER -