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. 2020 Nov 5;15(11):e0241707. doi: 10.1371/journal.pone.0241707

Table 2. Summary of the measures that make up each of the groups for the analysis.

Group Measure Mean [Range] Missing
Demographics Age at Baseline 80.71 [62.64, 102.15] 0
Male 37.65% 0
Cognition (z-scores, higher values for higher cognition) Episodic Memory -0.14 [-4.00, 1.45] 2
Visuospatial Ability -0.12 [-3.24, 1.61] 4
Perceptual Speed -0.17 [-3.18, 2.54] 3
Semantic Memory -0.07 [-5.73, 2.35] 2
Working Memory -0.05 [-3.39, 2.19] 1
Non-AD Pathology Hippocampal Sclerosis 6.08% 9
Lewy Bodies 19.71% 1
Gross Chronic Infarcts 32.99% 1
Chronic Microinfarcts 29.11% 1
Gross Infarcts 41.98% 1
Microinfarcts 37.18% 1
Education Education (years) 16.39 [3, 30] 0
Personality Anxiety (range 0 to 10 [more anxious]) 1.52 [0, 10] 122
Neuroticism (range 0 to 24 [more neurotic]) 8.12 [0, 18] 51
Vision Vision (range 1 to 7 [poor]) 1.55 [1, 7] 8
APOE APOE 2 Allele 15.93% 13
APOE 4 Allele 24.92% 13
Pain Lower Extremity 31.7% 2
Upper Extremity 19.73% 2
Alcohol Lifetime (range 0 to 6 [more consumption]) 0.41 [0, 6] 6
Last 12 months (log grams per day) 0.70 [0, 4.66] 6
Smoking Former Smoker 28.3% 5
Current Smoker 2.56% 5
BMI BMI 26.77 [12.65, 47.44] 29
Comorbidities Hypertension 47.7% 1
Cancer 32.38% 1
Diabetes 13.48% 1
Head Injury 5.93% 2
Thyroid 17.47% 1
Heart Disease 15.83% 1
Stroke 10.43% 21
Parkinsonism Bradykinesia (range 0 to 100 [more bradykinesia]) 13.99 [0, 80] 5
Gait Quality (range 0 to 100 [more gait problems]) 19.34 [0, 100] 9
Overall (range 0 to 2 [high]) 1.07 [0, 2] 4
Rigidity (range 0 to 100 [more rigid]) 4.71 [0, 85] 4
Tremor (range 0 to 100 [more tremor]) 3.60 [0, 69.70] 5
Depression Depression (range 0 to 10 [more depressed]) 1.2 [0, 9] 5
Life Activities Instrumental (0 to 8 [needs more help]) 1.35 [0, 8] 7
Basic (0 to 6 [needs more help]) 0.23 [0, 6] 6
Mobility Disability (0 to 3 [needs more help]) 0.91 [0, 3] 8
Physical Activities Overall (higher scores more active) 0.71 [0, 18] 4
Walking (higher scores more active) 1.46 [0, 35] 5
Yardwork (higher scores more active) 0.29 [0, 35] 3