Table 1.
Included study demographics
| Study | UPDRS-III Mean (SD) |
Functional Impairment | Cognitive Task Type | Age | Sample Gender M/W |
Total N | Global Cognition |
|---|---|---|---|---|---|---|---|
| [31] Alcock et al., (2016) | -- | Pre-impaired | Memory | 68.5 (9.1) | 28/12 | 40 | ┼28.5 (1.2) |
| [32] Beck et al., (2015) | 24.7 (7.5) | Pre-impaired | Memory | 70.5 (8.4) | 18/2 | 20 | §26.5 (2.1) |
| [33] Bond et al., (2000) | -- | Impaired | Motor | 65.08 (10.3) | 11/1 | 12 | -- |
| [34] Canning et al., (2005) | 20.1 (4.8) | Pre-impaired | Motor | 65.4 (10.4) | 9/3 | 12 | ┼28.8 (1.4) |
| [35] Galletly et al., (2005) | 14.4 (6.1) | Pre-impaired | Arithmetic, Language, Motor | 65.0 (9.5) | 9/7 | 16 | ┼28.0 (3.0) |
| [36] Harrison et al., (2017) | 30.5 (11.8) | Pre-impaired | Language | 69.5 (7.6) | 13/10 | 23 | ┼29 (3.0) |
| [37] Lohnes et al., (2011) | 21.5 (6.7) | Pre-impaired | Language | 70.3 (6.8) | 4/7 | 11 | -- |
| [38] Lord et al., (2010) | 39.2 (15.4) | Impaired | Memory, Motor | 71.3 (7.4) | 19/10 | 29 | ┼26.9 (2.8) |
| [25] O’Shea et al., (2002) | -- | Pre-impaired | Arithmetic, Motor | 68.3 (6.6) | 12/3 | 15 | -- |
| [39] Plotnik et al., (2009) | -- | Impaired | Arithmetic | 71.9 (6.8) | 15/6 | 21 | -- |
| [10] Plotnik et al., (2011) | 19.8 (7.3) | Pre-impaired | Arithmetic | 65.9 (7.2) | 21/9 | 30 | ┼28.5 (1.3) |
| [40] Rochester et al., (2004) | -- | Impaired | Language, Motor | 64.6 (8.0) | 12/8 | 20 | ┼27.2 (2.0) |
| [41] Rochester et al., (2014) | 25.4 (10.4) | Pre-impaired | Memory | 67.0 (10.4) | 81/40 | 121 | ┼28.6 (1.3) |
| §25.1 (3.5) | |||||||
| [42] Salazar et al., (2017) | 20.6 (10.1) | Pre-impaired | Memory | 66.3 (5.6) | 11/8 | 19 | -- |
| [43] Stegemoller et al., (2014) | 24.0 (7.0) | Impaired | Arithmetic | 66.2 (8.5) | 28/7 | 35 | ┼29.2 (1.0) |
| [44] Wild et al., (2013) | 16.2 (7.9) | Impaired | Arithmetic, Language, Memory | 69.3 (2.3) | 8/10 | 18 | ┼26.4 (0.5) |
| [24] Yogev-Seligmann et al., (2005) | 17.5 (8.3) | Impaired | Arithmetic, Language, Memory | 70.9 (7.9) | 20/10 | 30 | 28.1 (1.6) |
| [45] Yogev-Seligmann et al., (2012) | 20.7 (8.9) | Pre-impaired | Language | 70.3 (6.6) | 12/8 | 20 | §26.4 (2.8) |
| [46] Yogev-Seligmann et al., (2013) | 23.2 (9.1) | Pre-impaired | Language | 68.7 (4.7) | 16/2 | 18 | §25.6 (1.7) |
Note: Unreported data marked as: --. Sample Gender: M=men, W=Women. Global cognition measures out of 30 points noted as § for the Montreal Cognitive Assessment (MoCA) and ┼ for the Mini-Mental State Exam (MMSE). Unified Parkinson’s Disease Rating Score, Part III (Motor) (UPDRS III).