Table 1

Bivariate analysis of demographic variables and LOS.

DemographicMean ± SDa Spearman ρ P Valueb
Age45.7 ± 19.70.130.07
Body mass index27.5 ± 5.60.100.17
Charlson Comorbidity Index0.73 ± 1.40.200.005 b
  N (%)c LOS, median ± IQR 
Sex   
 Male139 (70.9)6.9 ± 7.10.23
 Female57 (29.1)6.7 ± 7.1
Insurance   
 Medicaid45 (23.0)7.6 ± 11.00.71
 Medicare40 (20.4)7.0 ± 6.9
 Private79 (40.3)6.6 ± 5.1
 No insurance/self-pay15 (7.7)5.6 ± 12.4
 Other17 (8.7)6.5 ± 6.1

  • ↵a Continuous variables reported as mean ± SD and Spearman ρ correlation with LOS.

  • ↵b Indicates statistically significant values with P < 0.05.

  • ↵c Categorical variables reported as N (%) and median LOS ± IQR.

  • IQR, interquartile range; LOS, length of stay.