A Factor Analytic Approach to Symptom Patterns in Dementia

Table 6

Correlations between 30 clinical items in 190 patients with dementia.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
1	1	.179	.271	.22	.183	.142	.159	.101	.045	.082	.126	.116	.13	−.056	.069	.154	.226	−.733	−.572	−.429	−.022	−.16	−.058	−.078	−.095	−.39	−.5	−.346	−.597	−.352
2	.179	1	−.081	−.081	−.135	.041	.174	.128	.046	−.009	.06	.193	.343	.062	.116	.198	.263	−.169	−.275	−.372	.007	−.367	−.11	−.096	.047	−.131	−.291	−.372	−.234	−.141
3	.271	−.081	1	.554	.479	.172	−.047	−.21	.084	.182	.175	−.21	−.447	−.071	.104	−.149	−.287	−.132	−.163	−.137	.1	.19	−.169	−.036	−.01	.029	−.111	−.026	−.27	−.056
4	.22	−.081	.554	1	.543	.089	−.162	−.273	.202	.095	.175	−.239	−.447	−.114	.177	−.266	−.367	−.081	−.088	.061	.182	.235	−.097	.054	.06	−.02	−.015	.022	−.125	−.031
5	.183	−.135	.479	.543	1	.179	−.048	−.148	.236	.303	.242	−.204	−.357	.059	.151	−.224	−.295	−.12	−.181	.031	.178	.125	−.221	−.123	.003	.007	−.043	.04	−.151	.018
6	.142	.041	.172	.089	.179	1	.143	.057	.117	.182	.126	.175	−.105	.028	.082	−.002	.077	−.038	−.047	−.075	.145	−.052	−.023	−.097	.014	−.007	−.162	.071	−.112	−.107
7	.159	.174	−.047	−.162	−.048	.143	1	−.006	.029	−.035	.096	.082	.225	−.022	.085	.192	.234	−.157	−.119	−.15	−.092	−.168	−.141	−.006	−.065	−.083	−.138	−.055	−.092	−.086
8	.101	.128	−.21	−.273	−.148	.057	−.006	1	.094	.006	−.043	.211	.23	.025	−.061	.17	.375	−.114	−.099	−.158	−.092	−.116	.189	.042	−.013	−.086	−.06	−.001	.024	.025
9	.045	.046	.084	.202	.236	.117	.029	.094	1	.131	.412	.064	−.086	.092	.191	−.07	.013	−.04	−.02	−.047	.107	.053	−.026	.053	.154	.033	−.021	−.026	.017	−.006
10	.082	−.009	.182	.095	.303	.182	−.035	.006	.131	1	.275	−.081	−.198	.095	.083	−.143	.01	−.02	−.022	−.055	.184	.036	.03	−.034	.196	.027	.014	−.019	.024	.118
11	.126	.06	.175	.175	.242	.126	.096	−.043	.412	.275	1	.013	−.078	.059	.101	−.028	−.068	−.079	−.089	−.095	.037	−.107	−.155	−.068	.035	−.099	.011	−.034	−.026	.064
12	.116	.193	−.21	−.239	−.204	.175	.082	.211	.064	−.081	.013	1	.255	.241	−.112	.31	.272	−.183	−.125	−.229	−.084	−.166	.139	−.166	−.073	−.137	−.187	−.224	−.15	−.108
13	.13	.343	−.447	−.447	−.357	−.105	.225	.23	−.086	−.198	−.078	.255	1	.152	.021	.287	.409	−.177	−.119	−.191	−.129	−.299	.046	−.061	.045	−.195	−.198	−.18	−.038	−.125
14	−.056	.062	−.071	−.114	.059	.028	−.022	.025	.092	.095	.059	.241	.152	1	−.042	.073	−.032	−.011	.06	−.007	.169	−.093	.122	−.001	.209	−.047	−.037	.002	−.052	−.082
15	.069	.116	.104	.177	.151	.082	.085	−.061	.191	.083	.101	−.112	.021	−.042	1	.009	−.041	−.003	−.054	.04	.139	−.037	−.052	−.037	.036	.096	−.017	.085	−.038	.004
16	.154	.198	−.149	−.266	−.224	−.002	.192	.17	−.07	−.143	−.028	.31	.287	.073	.009	1	.102	−.151	−.158	−.221	−.086	−.201	.043	−.118	−.098	−.12	−.175	−.133	−.083	−.077
17	.226	.263	−.287	−.367	−.295	.077	.234	.375	.013	.01	−.068	.272	.409	−.032	−.041	.102	1	−.254	−.234	−.316	−.16	−.31	.002	−.082	−.045	−.123	−.234	−.178	−.138	−.128
18	−.733	−.169	−.132	−.081	−.12	−.038	−.157	−.114	−.04	−.02	−.079	−.183	−.177	−.011	−.003	−.151	−.254	1	.523	.415	.028	.253	.008	.06	.075	.401	.512	.328	.551	.362
19	−.572	−.275	−.163	−.088	−.181	−.047	−.119	−.099	−.02	−.022	−.089	−.125	−.119	.06	−.054	−.158	−.234	.523	1	.481	−.023	.221	.127	.086	.105	.34	.534	.354	.429	.331
20	−.429	−.372	−.137	.061	.031	−.075	−.15	−.158	−.047	−.055	−.095	−.229	−.191	−.007	.04	−.221	−.316	.415	.481	1	.161	.254	.037	.067	.131	.263	.369	.308	.255	.277
21	−.022	.007	.1	.182	.178	.145	−.092	−.092	.107	.184	.037	−.084	−.129	.169	.139	−.086	−.16	.028	−.023	.161	1	.061	−.097	.002	.102	.057	.033	.151	−.024	.019
22	−.16	−.367	.19	.235	.125	−.052	−.168	−.116	.053	.036	−.107	−.166	−.299	−.093	−.037	−.201	−.31	.253	.221	.254	.061	1	.067	.082	−.033	.138	.203	.143	.084	.024
23	−.058	−.11	−.169	−.097	−.221	−.023	−.141	.189	−.026	.03	−.155	.139	.046	.122	−.052	.043	.002	.008	.127	.037	−.097	.067	1	.296	.119	−.037	.043	.035	.159	−.017
24	−.078	−.096	−.036	.054	−.123	−.097	−.006	.042	.053	−.034	−.068	−.166	−.061	−.001	−.037	−.118	−.082	.06	.086	.067	.002	.082	.296	1	.242	.111	.075	.194	.058	.024
25	−.095	.047	−.01	.06	.003	.014	−.065	−.013	.154	.196	.035	−.073	.045	.209	.036	−.098	−.045	.075	.105	.131	.102	−.033	.119	.242	1	.161	.127	−.039	.082	.071
26	−.39	−.131	.029	−.02	.007	−.007	−.083	−.086	.033	.027	−.099	−.137	−.195	−.047	.096	−.12	−.123	.401	.34	.263	.057	.138	−.037	.111	.161	1	.388	.268	.229	.189
27	−.5	−.291	−.111	−.015	−.043	−.162	−.138	−.06	−.021	.014	.011	−.187	−.198	−.037	−.017	−.175	−.234	.512	.534	.369	.033	.203	.043	.075	.127	.388	1	.366	.495	.516
28	−.346	−.372	−.026	.022	.04	.071	−.055	−.001	−.026	−.019	−.034	−.224	−.18	.002	.085	−.133	−.178	.328	.354	.308	.151	.143	.035	.194	−.039	.268	.366	1	.322	.341
29	−.597	−.234	−.27	−.125	−.151	−.112	−.092	.024	.017	.024	−.026	−.15	−.038	−.052	−.038	−.083	−.138	.551	.429	.255	−.024	.084	.159	.058	.082	.229	.495	.322	1	.526
30	−.352	−.141	−.056	−.031	.018	−.107	−.086	.025	−.006	.118	.064	−.108	−.125	−.082	.004	−.077	−.128	.362	.331	.277	.019	.024	−.017	.024	.071	.189	.516	.341	.526	1

(1) Slow progression, (2) Early loss of insight, (3) Early amnesia of remote events, (4) Early spatial disorientation, (5) Dyspraxia, dysphasia, dysgnosia, (6) Logoclonia, (7) Logorrhoea, (8) Progressive reduction of speech, (9) Epileptic seizure of late onset, (10) Increased muscular tension, (11) Myoclonic twitchings, (12) Klüver-Bucy syndrome, (13) Early disinhibition, (14) Irritability, dysphoria, (15) Confabulation, (16) Stereotypy of speech, (17) Echolalia, (18) Abrupt onset, (19) Stepwise progression, (20) Fluctuating course, (21) Nocturnal confusion, (22) Relative preservation of personality, (23) Depression, (24) Somatic complaints, (25) Emotional incontinence, (26) History of hypertension, (27) History of stroke, (28) Evidence of associated atherosclerosis, (29) Focal neurological symptoms, and (30) Focal neurological signs.