Table 3

Characteristics of subjects without dementia and with different types of dementia

Demented
Non-dementedDemented, totalAlzheimer’s diseaseVascular dementiaDementia with Lewy bodiesOther types of dementia
Values are n (%) unless stated.
*Data missing mainly because of severe stage of dementia or living in an institution
IADL, instrumental activities of daily living.
n (%)464 (77.2)137 (22.8)64 (46.7)32 (23.4)30 (21.9)11 (8.0)
Age (years) (mean (SD))80.4 (4.3)83.6 (4.8)84.1 (4.6)84.1 (5.0)83.3 (4.6)80.3 (5.0)
    (range)(75 to 96)(75 to 95)(75 to 92)(75 to 92)(75 to 95)(75 to 89)
    75 to 79255 (55)34 (25)13 (20)9 (28)6 (20)6 (55)
    80 to 84132 (28)56 (39)30 (47)5 (16)15 (50)3 (27)
    85 to 8965 (14)34 (25)10 (16)16 (50)6 (20)2 (18)
    90+12 (3)16 (11)11 (17)2 (6)3 (10)0
Sex
    Male127 (27)29 (21)12 (19)9 (28)4 (13)4 (36)
    Female337(73)108 (79)52 (81)23 (72)26 (87)7 (64)
Place of residence
    Community446 (96)77 (56)37 (58)16 (50)19 (63)5 (45)
    Institution18 (4)60 (44)27 (42)16 (50)11 (37)6 (56)
Length of education (years)
    Mean (SD)6.9 (3.5)5.6 (2.8)5.8 (2.6)4.5 (2.2)7.0 (3.9)4.4 (0.9)
    (range)(0.5 to 23)(1.5 to 16)(2 to 15)(1.5 to 10)(4 to 16)(4 to 6)
    Unknown34 (7)79 (58)36 (56)19 (59)18 (60)6 (55)
Stage of dementia
    Mild48 (35)23 (36)11 (34)9 (30)5 (46)
    Moderate50 (36)18 (28)12 (38)18 (60)2 (18)
    Severe39 (29)23 (36)9 (28)3 (10)4 (36)
Duration of dementia (years)
    Mean (SD)4.2 (3.6)4.1 (3.7)4.3 (3.6)4.0 (3.5)4.9 (3.3)
    (range)(0 to 19)(0 to 19)(0 to 14)(0 to 18)(0 to 11)
    Less than 1 year11 (8)6 (9)3 (10)1 (3)1 (9)
    1 to 2 years45 (33)24 (38)9 (28)10 (33)2 (19)
    3 to 6 years67 (49)22 (34)10 (31)15 (50)4 (36)
    7+ years30 (22)12 (19)10 (31)4 (14)4 (36)
MMSE score
    Mean (SD)26.1 (3.7)12.5 (7.6)12.4 (7.3)11.9 (8.6)14.1 (6.5)10.3 (9.0)
    (range)(0 to 30)(0 to 25)(0 to 25)(0 to 28)(0 to 26)(0 to 21)
    30 to 24378 (82)5 (4)1 (1)2 (6)2 (7)0
    23 to 1876 (16)40 (29)21 (33)7 (22)8 (27)4 (36)
    17 to 125 (1)44 (32)17 (27)2 (36)13 (43)2 (18)
    11 to 05 (1)48 (35)25 (39)11 (34)7 (23)5 (46)
Barthel index score
    Mean (SD)94.1 (13.2)58.2 (34.5)63.8 (35.0)50.1 (36.6)60.9 (28.2)42.7 (36.6)
    (range)(0 to 100)(0 to 100)(0 to 100)(0 to 100)(0 to 100)(0 to 100)
    Missing*995220
IADL score
    Mean (SD)6.8 (1.6)3.6 (2.5)3.9 (2.4)3.1 (82.1)3.3 (2.8)4.3 (2.3)
    (range)(0 to 8)(0 to 8)(0 to 8)(0 to 6)(0 to 8)(3 to 7)
    Missing*63803423158