Table 2.

Illustration of the features selected by the Boruta algorithm ranked by importance.

1. Average time phone screen was on over 24 h	2. Average skin conductance response difference between right and left wrist recorded during motionless intervals over 24 h	3. Average SD of the location latitude and longitude from 12 p.m. to 6 p.m. (location_totalStd_12 to 18)
4. Average duration phone screen was on from 8 a.m. to 6 p.m.	5. Average location latitude over 24 h	6. Average skin conductance level mean difference between right and left wrist during motionless intervals over 24 h
7. Longitude standard deviation from 6 a.m. to 12 p.m.	8. Average location latitude from 8 a.m. to 6 p.m.	9. HRV root mean square of successive differences between normal heartbeats on the right wrist between 6 p.m. and 12 a.m.
10. Median latitude between 12 p.m. and 6 p.m.	11. Median time phone screen was on over 24 h	12. Average of skin conductance response amplitude peaks on the left wrist processed during motionless intervals over 24 h
13. HRV average of the SD of N-N intervals from 12 a.m. to 6 p.m. on the right wrist	14. Standard deviation of the Location latitude between 6 a.m. and 12 p.m.	15. Average location latitude from midnight to 6 a.m.
16. Average duration phone screen was on from 12 p.m. to 6 p.m.	17. SD of the Location latitude between 12 p.m. and 6 p.m.	18. SD of durations when phone screen was on from 12 p.m. to 6 p.m.
19. SD of the Location latitude between 8 a.m. and 6 p.m.	20. Average HRV power of the low frequency signal band over 24 h measured on right wrist	21. HRV average of the SD of N-N intervals over 24 h on the left wrist
22. HRV average of SD of N-N intervals from 6 p.m. to 12 a.m. on the right wrist	23. SD of HRV power of the low frequency signal band over 24 h measured on right wrist	24. SD of location latitude over 24 h
25. Average skin conductance level on the left wrist during motionless intervals over 24 h	26. SD of durations when phone screen was on from 8 a.m. to 6 p.m.	27. HRV Average of the SD of N-N intervals from 6 p.m. to 12 p.m. on the left wrist
28. HRV average of the SD of N-N intervals over 24 h on the right wrist	29. Skin conductance response difference right and left wrist processed during motionless intervals over 24 h	30. Number of times the phone screen was on from 12 p.m. to 6 p.m.
31. Average SD of the location latitude and longitude from 6 a.m. to 12 p.m.	32. Root mean square of successive differences between normal heartbeats over 24 h on the right wrist	33. Total time the phone screen was on from 12 p.m. to 6 p.m.
34. Average latitude 12 p.m. to 6 p.m.	35. Skin conductance response difference right and left wrist processed during motionless intervals over 24 h	36. Average power of the high frequency band of the HRV signal over 24 h on the right wrist
37. SD duration phone was on over 24 h	38. SD of the IBIs for all sinus beast from 6 p.m. to 12 p.m. on the right wrist	39. Root mean square of successive differences between normal heartbeats from 6 p.m. to 12 a.m. on the right wrist

SD, standard deviation; HRV, Heart Rate Variability.