Table 9.
Analysis of feature importance of the selected 10 features.
| Feature | Importance | Median feature value | U test statistic | P value | |
|---|---|---|---|---|---|
| Low | High | ||||
| Number of Awakenings* | 0.21701 | 26.5 | 19.0 | 0.0 | 0.049 |
| Minutes Lightly Active | 0.19127 | 211.0 | 239.0 | 0.0 | 0.748 |
| Minutes Light Sleep 2nd Order of Difference | 0.11961 | 0.5 | 4.0 | 173.0 | 0.069 |
| Minutes Light Sleep* | 0.10999 | 292.0 | 269.0 | 0.0 | <0.001 |
| Minutes Very Active* | 0.10323 | 2.0 | 1.0 | 15,530.0 | <0.001 |
| Minutes Deep Sleep | 0.08600 | 58.0 |
72.0 | 173.0 | 0.001 |
| Minutes Awake* |
0.06130 | 58.0 | 53.0 | 18,071.5 | <0.001 |
| Minutes REM Sleep* | 0.05934 | 93.5 | 96.0 | 0.0 | 0.003 |
| Minutes Sedentary* | 0.03096 | 660.0 |
671.0 | 0.0 | <0.001 |
| Minutes Moderately Active | 0.02128 | 6.0 | 7.0 | 0.0 | 0.395 |
*Statistically significant at p<0.05.