. 2025 Jun 23;27:e69379. doi: 10.2196/69379

Table 5.

The feature importance for exploring factors related to high levels of loneliness, as analyzed by 4 groups.

Variables	Feature importance
Sleep quality	3.206
Physical movement	2.173
Sedentary behavior	1.723
Sleep quantity	0.812
Sum of SGDS-K^a	0.143
Sum of SCD-Q^b	0.128
Sum of K-GAI^c	0.099
Sum of MBI-C^d	0.069
Impulse dyscontrol domain in MBI-C	0.062
Subjective economic status	0.058

^aSGDS-K: Korean version of the Short Form-Geriatric Depression Scale.

^bSCD-Q: Subjective cognitive decline questionnaire.

^cK-GAI: Korean Geriatric Anxiety Inventory.

^dMBI-C: Mild behavioral impairment checklist.