Hospital utilization and disposition among patients with malignant bowel obstruction: a population-based comparison of surgical to medical management

Table 4 Length of stay, complications, readmissions, emergency department visits, and re-obstruction for medical and surgical malignant bowel obstruction patients

	Medical Management		Surgical Management		Adjusted Odds Ratios^a			P-value
	N	%	N	%	OR	95% CI		P-value
Length of stay (median, IQR)	5 (3–8)		13 (9–20)		0.91^b	0.87^b	0.95^b	< 0.0001
30-day complications	727	21.3%	508	44.0%	2.37	2.04	2.75	< 0.0001
Readmissions ^c
7-day	495	15.2%	111	10.9%	0.64	0.51	0.80	0.0001
30-day	1133	34.5%	244	23.4%	0.56	0.48	0.67	< 0.0001
ED visits ^c
7-day	149	4.5%	50	4.8%	1.05	0.74	1.48	0.80
30-day	384	11.7%	120	11.5%	1.00	0.79	1.25	0.98
Re-obstruction within 1 year^c	897	27.3%	110	10.5%	0.33	0.26	0.41	< 0.0001

ED emergency department, CI confidence interval
^aOdds ratio (except for length of stay which is the regression coefficient) for surgery with medical management treated as reference and adjusted with inverse probability of treatment weighted (IPTW) analyses using propensity scores created from: age, race, gender, cancer diagnoses, presence of ascites, Elixhuaser comorbidity index score, and DNR status
^bRegression coefficient for log-transformed LOS adjusted with IPTW; with retransformation, indicates a 2.5-fold increase in LOS for surgical patients
^cexcluding patients who died at date of discharge (N = 4327), ED visits not associated with hospital admission

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