Table 4.

Odds ratio of various factors inducing improvement of FIM score

Factor	Odds ratio	95% CI	P-value
Stable posterior occlusion	2.23	1.2~4.1	0.008*
Closed lips	5.15	2.3~11.7	<0.0001*
Functional tongue movement	5.74	3.0~11.0	<0.0001*
Remaining teeth	1.16	0.70~1.9	0.57
Presence of mobile teeth	1.16	0.58~2.3	0.68
Presence of cerebrovascular disease	0.65	0.40~1.1	0.09
Presence of cerebrovascular disease + Loss of posterior occlusion	0.31	0.13~0.73	0.005*
Presence of cognitive impairment	0.29	0.17~0.49	<0.0001*
Presence of aspiration pneumonia	0.27	0.15~0.51	<0.0001*

Notes:

^*P<0.05, chi-square test. Over 10 points of FIM gain during hospital stay were extracted as “improvement”.

Abbreviations: FIM, Functional Independence Measure; CI, confidence interval.