Table 4. Logistic regression model of the association between patients’ characteristics and extended hospital stay (defined as > 5.3 days).

*Significant at 0.05 level

BMI, body mass index; CI, confidence interval; LOS, length of hospital stay; OR, odd ratio

 

Variable	Extended LOS unadjusted, OR (CI)	Extended LOS adjusted, OR (CI)
Age at admission time (months)	1.0 (0.99-1.0)	1.0 (0.98-1.0)
Gender	1.0 (0.53-2.0)	0.91 (0.44-1.8)
BMI	0.84 (0.73-.97)	0.88 (0.76-1.0)
O2 treatment (yes vs. no as reference)	2.4 (1.1-5.0)	2.2* (1.0-4.9)
Comorbidity (yes vs. no as reference)	5.5 (2.6-11.3)	4.5* (2.1-9.5)