Table 4 Feature rankings by data slicea.

From: Smartphone accelerometer data as a proxy for clinical data in modeling of bipolar disorder symptom trajectory

 

All

Typing + Accel

Typing

Accel

1

PHQ_before_1w

medianPressDur

medianPressDur

n_XYZ

2

Age

medianX

nKeypresses

count_Xhorizontal

3

phoneSize

Xmotion_sd

bkspRate_wkSD

arc_sum

4

MDQdiag

arc_sum

Avg_nAutocorrect

medianX

5

Gender

n_XYZ

AvgVarAB

Ymotion_sum

6

medianPressDur

autocorrectRate_wkSD

autocorrectRate_wkSD

medianZ

7

BD_binary

medianIKD

medIKD_wkSD

Xmotion_sum

8

Depression

Avg_nAlphanum

medianIKD

Zmotion_sd

9

PTSD

medianDistCenter

backspaceRate

Ymotion_sd

10

Anxiety

medIKD_wkSD

medianDistCenter

Zmotion_sum

11

count_Xhorizontal

bkspRate_wkSD

Avg_nBackspace

Xmotion_sd

12

ADHD

AvgMedAA

distToCenterPrevRatioAA

medianY

13

SubstanceAddictionDisorder

backspaceRate

AvgMedAA

 

14

n_XYZ

Avg_nAutocorrect

AvgVarBB

15

arc_sum

autocorrectRate

AvgMAD_AA

16

OCD

AvgVarAB

autocorrectRate

17

medianDistCenter

AvgMedBB

Avg90PercentileAA

18

Avg_nBackspace

AvgVarBB

Avg_nAlphanum

19

backspaceRate

Avg_medPressDuration

AvgVarAA

20

nKeypresses

Zmotion_sum

AvgMedBB

21

AvgMAD_AA

Ymotion_sum

Avg_medPressDuration

22

Avg_nAutocorrect

AvgMedAB

AvgMedAB

23

AvgMedBB

medianZ

 

24

AvgVarBB

nKeypresses

25

NoneOfTheseDiag

AvgMAD_AA

26

autocorrectRate

Avg_nBackspace

27

medianZ

count_Xhorizontal

28

AvgVarAB

AvgVarAA

29

autocorrectRate_wkSD

distToCenterPrevRatioAA

30

medianX

Zmotion_sd

31

medianIKD

Xmotion_sum

32

Avg90PercentileAA

Avg90PercentileAA

33

Ymotion_sum

medianY

34

distToCenterPrevRatioAA

Ymotion_sd

35

AvgMedAA

 

36

Avg_nAlphanum

37

AvgMedAB

38

Ymotion_sd

39

Xmotion_sd

40

medIKD_wkSD

41

Zmotion_sum

42

Avg_medPressDuration

43

medianY

44

AvgVarAA

45

bkspRate_wkSD

46

SeasonalAffectiveDisorder

47

Zmotion_sd

48

Xmotion_sum

49

Schizophrenia

50

Diag_PreferNotAnswer

  1. aFeatures in bold/italic are used later in sensor fusion.