Table 2 Database characteristics
Study | Number of centers | Parkinson’s disease | Healthy participants | Mean age (std) | Males (%) | Scanner vendor |
|---|---|---|---|---|---|---|
ADNI | 42 | 0 | 274 | 67.76 (4.27) | 35% | Siemens, GE, and Philips |
BIOCOG | 1 | 45 | 49 | 71.29 (4.65) | 56% | Siemens |
C-BIG | 1 | 66 | 10 | 64.65 (8.90) | 49% | Siemens |
HAMBURG | 1 | 74 | 39 | 63.16 (9.95) | 67% | Siemens |
CCNA | 6 | 57 | 0 | 68.35 (7.46) | 65% | GE |
JAPAN | 1 | 30 | 15 | 66.15 (6.58) | 44% | Siemens |
NEUROCON | 1 | 26 | 16 | 68.33 (11.0) | 48% | Siemens |
OASIS | 1 | 0 | 27 | 66.33 (7.17) | 63% | Siemens |
CALGARY | 1 | 79 | 42 | 70.78 (6.58) | 60% | GE |
MONTREAL | 1 | 41 | 21 | 62.16 (5.93) | 58% | Siemens |
PPMI | 24 | 384 | 162 | 61.10 (10.38) | 64% | Siemens, GE, and Philips |
SALD | 1 | 0 | 78 | 61.65 (8.03) | 100% | Siemens |
TAOWU | 1 | 17 | 20 | 64.64 (4.92) | 54% | Siemens |
UKBB | 1 | 48 | 197 | 66.95 (7.58) | 60% | Siemens |
