Table 2.

Frequency of principal outcome by group.

	OBI		Non-OBI		p
	N	%	N	%
Death
Yes	3	0.53%	3	0.84%
No	559	99.47%	355	99.16%	0.683 b
Hospitalization
Yes	333	59.25%	245	68.44%
No	229	40.75%	113	31.56%	0.005 a
Transfer *
Yes	91	16.19%	23	6.42%
No	471	83.81%	335	93.58%	<0.001 a
Outcomes
Hospitalization	333	59.25%	245	68.44%
Discharge	129	22.95%	83	23.18%
Transfer *	91	16.19%	23	6.42%
Voluntary leaving	5	0.89%	4	1.12%
Hospitalization refuse	1	0.18%	-	-
Death	3	0.53%	3	0.84%	<0.001 b
Readmission
Yes	64	11.4%	35	9.8%
No	498	88.6%	323	90.2%	0.591 a
Readmission at 7 days
Yes	13	2.31%	12	3.35%
No	549	97.69%	346	96.65%	0.345 a
Readmission at 14 days
Yes	32	5.69%	21	5.87%
No	530	94.31%	337	94.13%	0.913 a
Readmission at 30 days
Yes	66	11.74%	40	11.17%
No	496	88.26%	318	88.83%	0.792 a

* Transfers to other hospital wards or structures. ^a: χ² test; ^b: Fisher’s exact test.