Table 2. Survival analyses for mortality within 30- and 365-days of SNF admission.

Predictors	Hazard Ratio	95% CI
PHQ-9: patient health questionnaire-9; SI: suicide ideation.
30-day mortality
Unadjusted model
SI group (with SI)	2.34	(1.75, 3.11 )
Adjusted models
SI group (with SI) Adjusted for relevant covariates	2.10	(1.57, 2.80 )
SI group (with SI) Adjusted for relevant covariates and PHQ-9 depressive symptoms	1.51	(1.11, 2.05 )
365-day mortality
Unadjusted model
SI group (with SI)	1.48	(1.29, 1.67 )
Adjusted models
SI group (with SI) Adjusted for relevant covariates	1.35	(1.17, 1.55 )
SI group (with SI) Adjusted for relevant covariates 　and PHQ-9 depressive symptoms	1.16	(1.002, 1.34 )