Table 3.

Multivariable model: length of stay adjusted for covariates.

Variable	Median difference	95% Confidence interval	P value
AKI	1.32	0.51–2.12	.001
Obesity	–0.07	–0.20–0.05	.239
Age (per 5 yr)	0.01	0.002–0.02	.008
Sex (Female vs Male)	0.14	–0.004–0.29	.057
Diabetes	0.28	0.10–0.47	.003
Heart disease	0.32	0.08–0.55	.008
Hypertension	–0.05	–0.18–0.07	.411
CKD	0.58	0.21–0.94	.002

^∗Median difference estimates and P values from multivariable quantile regression of the median model

AKI = acute kidney injury, CKD = chronic kidney disease