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. 2024 Dec 23;8:e63866. doi: 10.2196/63866

Table 3.

HDTwin numeric processing rules. These results are created from the trained decision trees and are listed with the corresponding Pra and Pab.

Rule Pr Pa
If distance_traveled_from_home > 4.5 then more likely healthy 100.00 6
If distance_traveled_variance > 8.0 and physical_activity_level ≤ 5.5 then more likely healthy 91.67 12
If physical_activity_level ≤ 1.5 and EMA_compliance ≤ 9.5 then more likely mild cognitive impairment 85.71 7
If mental_sharpness_variance > 2.5 and mental_sharpness_mean > 4.5 then more likely mild cognitive impairment 83.33 6
If shape_score_sd ≤ 2.5 and mental_sharpness_variance ≤ 2.5 then more likely healthy 81.82 22
If distance_traveled_variance > 8.0 then more likely healthy 80.00 15
If mental_sharpness_variance ≤ 2.5 and mental_sharpness_mean ≤ 4.5 then more likely mild cognitive impairment 80.00 5
If mental_sharpness_mean > 5.5 and physical_activity_variance ≤ 8.0 then more likely healthy 79.17 24
If sex = male and age ≤ 79.5 then more likely mild cognitive impairment 77.78 9
If mental_sharpness_variance > 2.5 then more likely mild cognitive impairment 77.78 9
If sex = female and shape_learning_rate ≤ 4.5 then more likely healthy 76.47 17
If shape_score_sd > 2.5 and shape_learning_rate > 1.5 then more likely mild cognitive impairment 75.00 16
If physical_activity_variance ≤ 0.5 then more likely mild cognitive impairment 75.00 8
If mental_sharpness_mean ≤ 4.5 then more likely mild cognitive impairment 75.00 8
If shape_score_sd > 2.5 then more likely mild cognitive impairment 70.59 17
If shape_score_sd ≤ 2.5 then more likely healthy 60.61 33
If distance_traveled_variance ≤ 8.0 then more likely mild cognitive impairment 60.61 33
If physical_activity_variance > 0.5 then more likely healthy 57.50 40
If mental_sharpness_variance ≤ 2.5 then more likely healthy 57.50 40
If mental_sharpness_mean > 4.5 then more likely healthy 56.10 41

aPr: probability of the rule occurring in the decision tree.

bPa: number of participants supporting the rule.