Table 3.

Predictors of 30 and 90-day all cause readmission: values depicted represent odds ratios, confidence intervals and p values for predictors of 30 and 90-day all cause readmissions

	30-day		90-day
	OR	p value	OR	p value
Payer information
Medicare	1.43	<0.01	1.31	0.01
Medicaid	1.27	0.02	1.29	<0.01
Private Insurance	Reference
Age category
<50 years old	Reference
50–64 years old	0.98	0.82	1.2	0.01
≥ 65 years old	0.90	0.37	1.24	0.05
Comorbidities
0 comorbidities	Reference
1 comorbidity	1.07	0.53	1.02	0.8
2 comorbidities	1.24	0.03	1.26	<0.01
Hospital teaching status
Metro non-teaching	Reference
Metro teaching	0.97	0.78	0.99	0.87
Non-metro	0.98	0.94	0.84	0.5
Tumor resection volume
< 25th volume percentile	Reference
25–50th volume percentile	0.72	0.2	0.88	0.56
50–75th volume percentile	0.71	0.15	0.7	0.11
> 75th volume percentile	0.66	0.09	0.64	0.03
Emergency room status
No ED origin	Reference
ED origin	1.06	0.57	0.99	0.95
Length of stay category
0–2 days	Reference
3–4 days	1.14	0.22	1.08	0.4
>4 days	1.25	0.06	1.3	0.01
Postoperative infection
No postop infection	Reference
Postop infection	2.00	0.01	1.65	0.09
Tumor location
Cerebrum	0.93	0.8	1.21	0.32
Frontal	Reference
Temporal	1.07	0.51	0.96	0.65
Parietal	1.02	0.83	1.01	0.95
Occipital	0.63	0.01	0.76	0.06
Ventricles	1.41	0.18	1.19	0.46
Cerebellum	1.03	0.85	1.07	0.72
Brain stem	1.94	0.07	1.25	0.56
Other brain	1.09	0.51	1.09	0.41
Brain NOS	1.41	<0.01	1.19	0.04
APRDRG severity score
Minor loss of function	Reference
Moderate loss of function	1.02	0.87	0.97	0.73
Major loss of function	1.28	0.01	1.06	0.54
Extreme loss of function	1.42	<0.01	1.15	0.2
Discharge disposition
Routine	Reference
Transfer to short-term hospital	1.7	<0.01	1.05	0.83
Transfer other: SNF, ICF	1.43	<0.01	1.25	<0.01
Home health care	1.4	<0.01	1.25	<0.01
AMA	1.65	0.42	2.8	0.09
Discharge alive, destination unknown
Income quartile based on ZIP code
Income quartile 1	1.11	0.3	1.19	0.04
Income quartile 2	0.96	0.67	1.09	0.26
Income quartile 3	0.90	0.29	1.06	0.47