Table 1.
Population characteristics of patients with Alzheimer's disease
| Variable (n = 641) | Value | Percentage | Range |
|---|---|---|---|
| Age, years | 73.0 (8.50) | 43-93 | |
| Female | 68 | ||
| Race (white versus non-white) | 87 | ||
| Education, years | 14.0 (3.56) | 0-29 | |
| Duration of symptoms before initial visit, years | 3.7 (2.29) | 0.5-13 | |
| Follow-up time from baseline to censoring or death, years | 3.0 (1.94) | 0.7-13.4 | |
| Total number of follow-up visits to the clinic | 2.4 (1.64) | 2-11 | |
| MMSE score | 19.5 (6.64) | 0-30 | |
| PSMS score | 7.9 (3.05) | 6-25 | |
| Using antipsychotics drugs | 221 | 34.5 | |
| Using antidementia drugs | 554 | 86.4 | |
| Pre-progression rate | |||
| Slow | 192 | 30.0 | |
| Moderate | 297 | 46.3 | |
| Fast | 152 | 23.7 | |
| Experiencing hallucination | 291 | 45.4 | |
| Experiencing delusions | 371 | 57.9 |
Continuous variables are presented as mean (standard deviation). MMSE, Mini-Mental Status Examination; PSMS, Physical Self-Maintenance Scale.