Table 1. The presenting symptoms of the probable and possible sCJD patients.
| clinical manifestation | case number | ||
| probable | possible | P | |
| progressive dementia | 79 (48.5%) | 39 (40.6%) | 0.2219 |
| mental syndrome1 | 40 (24.5%) | 21 (21.9%) | 0.6261 |
| cerebellum syndrome | 27 (16.6%) | 16 (16.7%) | 0.9830 |
| pyramidal or extrapyramidal dysfunction | 27 (16.6%) | 17 (17.7%) | 0.8132 |
| visual disturbance | 16 (9.8%) | 10 (10.4%) | 0.8768 |
| slow progressive dementia2 | 17 (10.4%) | 16 (16.7%) | 0.1467 |
| cerebral stroke | 3 (1.8%) | 1 (1.0%) | 0.6152 |
| dizziness | 4 (2.5%) | 1 (1.0%) | 0.4259 |
| sleeping disturbance | 1 (0.8%) | 1 (1.0%) | 0.7043 |
| lower limbs inability | 2 (1.3%) | \ | 0.2768 |
| speech disability | \ | 1 (1.0%) | 0.1926 |
| headache | 2 (1.3%) | \ | 0.2768 |
1
including sleeping turbulence, depression, anxiety and stress etc.
2
when the dementia persists longer than one year progressively without other manifestations.