Table 2.

Multivariable explanatory model for potentially avoidable transfer (PAT)

Variable	Odds Ratio (95%CI)	p
Rural Residence	0.798 (0.715–0.890)	< 0.001
Arrival during Nights (5p-8a) or Weekend	1.252 (1.144–1.370)	< 0.001
Diagnosis Group (CCS)		< 0.001
Mental Illness (5)	0.238 (0.202–0.282)
Circulatory (7)	0.518 (0.437–0.615)
Digestive (9)	0.563 (0.464–0.683)
Signs and Symptoms (17)	1.000 (ref)
Respiratory (8)	0.568 (0.456–0.708)
Injury and Poisoning (16)	1.374 (1.123–1.680)
Genitourinary (10)	0.789 (0.619–1.004)
Musculoskeletal (13)	1.571 (1.252–1.972)
Nervous System (6)	1.617 (1.288–2.030)
Skin (12)	0.870 (0.667–1.136)
Endocrine/Metabolic (3)	0.535 (0.380–0.752)
Neoplasms (2)	0.470 (0.321–0.690)
Blood (4)	0.511 (0.327–0.798)
Infectious/Parasitic Diseases (1)	0.380 (0.209–0.693)
VISN		< 0.001
1	0.480 (0.276–0.834)
2	1.280 (0.863–2.206)
3	1.133 (0.712–1.804)
4	0.534 (0.333–0.857)
5	0.515 (0.319–0.832)
6	0.706 (0.450–1.109)
7	0.516 (0.320–0.834)
8	0.839 (0.544–1.293)
9	0.787 (0.505–1.227)
10	1.791 (0.967–3.316)
11	0.568 (0.349–0.923)
12	0.613 (0.375–1.001)
15	0.896 (0.553–1.454)
16	0.492 (0.291–0.830)
17	0.380 (0.236–0.611)
18	0.788 (0.471–1.320)
19	0.412 (0.215–0.790)
20	0.459 (0.266–0.793)
21	0.957 (0.565–1.622)
22	1.673 (1.011–2.770)
23	1.000 (ref)
More than 50% Board-Certified Emergency Physicians	1.266 (1.103–1.452)	< 0.001

Abbreviations: CCS Clinical Classification Software, VISN Veterans Integrated Service Network