TABLE 3.
Follow‐up status in the ATN groups
| A+T+N+ | A+T‐N‐ | A‐T+N+ | A‐T+N‐ | A‐T‐N+ | A‐T‐N‐ | |
|---|---|---|---|---|---|---|
| N | 97 | 34 | 87 | 34 | 24 | 137 |
| Follow‐up time (months) | 31.6 ± 19* | 31.0 ± 27* | 34.5 ± 27 | 32.5 ± 28 | 39.0 ± 28 | 36.2 ± 29 |
| Follow‐up status: | ||||||
| Recovered N (%) | 2 (2)† | 0† | 4 (4)* | 6 (18) | 2 (8) | 20 (15) |
| Stable N (%) | 32 (33)† | 25 (74) | 62 (70) | 27 (79) | 16 (67) | 106 (77) |
| Converting N (%) | 63 (65) | 9 (26) | 21 (26) | 1 (3) | 6 (25) | 11 (8) |
| AD N (%) | 34 (54)† | 2 (22) | 11 (52)† | 1 (100) | 1 (17) | 3 (27) |
| Mixed dementia N (%) | 21 (33)† | 3 (33)† | 7 (33)† | 0 | 2 (33)† | 0 |
| SVD N (%) | 4 (6) | 2 (22) | 2 (10) | 0 | 3 (50)* | 3 (27) |
| Other dementia | 4 (6) | 2 (22) | 1 (5) | 0 | 0 | 4 (36) |
| Conversion within 3 years: | ||||||
| AD and Mix N (%) | 39 (61) | 1 (11)† | 14 (67)† | 1 (100) | 2 (33) | 2 (18) |
| SVD and Other N (%) | 5 (8) | 3 (33) | 2 (10) | 2 (33) | 3 (27) | |
| Conversion after 3 years: | ||||||
| AD & Mix N (%) | 16 (25) | 4 (44) | 4 (19) | 1 (17) | 1 (9) | |
| SVD & Other N (%) | 3 (5) | 1 (11) | 1 (5) | 1 (17) | 4 (36) | |
Follow‐up time was defined as the time until conversion or to last follow‐up and is presented as the mean ± SD. ATN groups were compared to the A‐T‐N‐ group. Furthermore, in each ATN group, converters were divided in two groups depending on whether the conversion occurred within or after 3 years from baseline. Then, these groups were further divided based on whether the conversion was to AD/mixed dementia or SVD/other dementia. Between‐group differences were analyzed using χ². Percentage values in follow‐up status and conversion within/after 3 years represent distribution within each ATN group. Percentage values of dementia diseases in follow‐up status represent proportion of converting patients in the individual ATN group.
P‐value <.05 versus A‐T‐N‐.
P‐value <.05 Proportion of converters within/after >3 years from baseline compared to A‐T‐N‐.