Clinical characterization of study samples
| Variable | Incident dementia (n = 256) | Referents (n = 6, 272) | P value |
|---|---|---|---|
| Age, years | 83 ± 8 | 62 ± 14 | < 0.001 |
| Women, n (%) | 155 (60.5) | 3, 410 (54.4) | 0.05 |
| Average number of segments in one recording | 209 ± 85 | 142 ± 54 | < 0.001 |
| Average length of each segment, seconds | 11.4 ± 4.7 | 13.0 ± 4.0 | < 0.001 |
One participant could have multiple voice recordings.
Values are n (%), or mean ± SD. One participant could have multiple recordings;
P value was calculated by the Fisher’ exact test for categorical variables, or Mann-Whitney U test for continuous variables