Table 4.

Final multivariate logistic regression model associated with the presence of aspiration.

Variables	OR (95% CI)	p-valuea
Age	1.06 (1.03–1.10)	<0.001
Time of OTI 8–14 days	5.78 (2.03–16.44)	0.001
Vocal quality – no abnormality (reference)	1	–
Harsh, wet voice, difficulty in controlling pitch and intensity	36.41 (5.72–234.12)	<0.001
Slight impairment, mild hoarseness	4.80 (0.66–34.44)	0.028

OR, Odds Ratio; CI, Confidence Interval; OTI, Intratracheal intubation.

^aSignificant values (p < 0.05).