Table 4.

Multivariable logistic regression model of association of potentially avoidable readmission association with patient and index hospitalization characteristics among prevalent patients with ESKD on hemodialysis in the United States

Characteristic	OR (95% CI)	P
Age, yr (unit = 10 yr)	0.93 (0.92–0.94)	<0.001
Length of stay of index hospitalization, d
0–4	Ref	–
>4–8	1.12 (1.10–1.16)	<0.001
>8	1.30 (1.26 1.34)	<0.001
Number of prior admissions (12 months prior)
None	Ref	–
1–3	1.03 (1.00–1.06)	0.02
>3	1.40 (1.36–1.45)	<0.001
Dialysis vintage, yr
<1	Ref	–
1–3	0.84 (0.81–0.87)	<0.001
>3	0.77 (0.75–0.80)	<0.001
Gender
Male	Ref	–
Female	1.03 (1.01–1.06)	0.003
Race
White	Ref	–
Black	1.06 (1.03–1.08)	<0.001
Asian	1.07 (0.99–1.14)	0.05
Native American	0.88 (0.81–0.97)	0.01
Other	1.13 (0.98–1.31)	0.09
Unknown	1.12 (0.63–1.98)	0.70
Ethnicity
Non-Hispanic	Ref	–
Hispanic	1.01 (0.97–1.04)	0.75
Unknown	0.84 (0.76–0.94)	0.0014
ESKD primary cause
Glomerulonephritis/cystic kidney	Ref	–
Diabetes	0.99 (0.95–1.04)	0.81
Hypertension	1.05 (1.01–1.10)	0.01
Other	1.12 (1.07–1.18)	<0.001
Employment status
Employed/Student	Ref	–
Homemaker	1.02 (0.95–1.10)	0.61
Retired – Disability/Medical LOA	0.98 (0.94–1.04)	0.67
Retired – Age	1.02 (0.96–1.08)	0.49
Unemployed	1.07 (1.01–1.13)	0.02
Unknown/Other	1.07 (0.98–1.17)	0.15
Type of index admission
Surgical	Ref	–
Medical without surgery	0.85 (0.81–0.89)	<0.001
Medical with surgery	0.91 (0.89–0.94)	<0.001
Dialysis facility
Nonprofit	Ref	–
Profit	1.05 (1.02–1.07)	0.0013
Unknown	0.99 (0.95–1.05)	0.85
Comorbidity Index (unit = 2)	1.19 (1.18–1.19)	<0.001

CI, confidence interval; ESKD, end-stage kidney disease; LOA, leave of absence; OR, odds ratio.