Table 4.

Factors related to death (univariate cox regression analysis).

Variable		Hazard ratio	95% Confidence interval	p-value
i) All death (17 patients)
Age		1.003	0.937-1.073	0.939
Sex	male / female	0.653	0.240-1.772	0.403
BMI		0.949	0.832-1.081	0.430
Serum albumin		0.483	0.196-1.191	0.114
Performance status	PS 3 / PS 4	4.220	0.558-31.893	0.163
Consciousness level	JAS 0-3 / JAS 10	1.079	0.376-3.098	0.888
Dementia	(-) / (+)	0.586	0.205-1.678	0.319
Number of remaining teeth		0.974	0.926-1.024	0.306
Denture use	(-) / (+)	0.575	0.129-2.569	0.469
Tongue pressure		0.956	0.897-1.018	0.159
dysphagia	(-) / (+)	0.410	0.149-1.133	0.086
ii) Death related to pneumonia (11 patients)
Age		1.060	0.973-1.154	0.180
Sex	male / female	0.824	0.260-2.609	0.742
BMI		0.917	0.781-1.077	0.292
Serum albumin		0.409	0.139-1.204	0.551
Performance status	PS 3 / PS 4	28.915	0.071-11850.083	0.273
Consciousness level	JAS 0-3 / JAS 10	1.275	0.378-4.293	0.620
Dementia	(-) / (+)	0.742	0.223-2.474	0.627
Number of remaining teeth		0.934	0.874-0.998	∗0.045
Denture use	(-) / (+)	0.898	0.190-4.254	0.892
Tongue pressure		0.953	0.884-1.027	0.208
dysphagia	(-) / (+)	0.258	0.068-0.987	∗0.048

∗ significant.

Abbreviation: BMI: body mass index.