Table 2.

Unadjusted and Adjusted Outcomes for Length of Stay and Hospital Costs

	Alvimopan		Unadjusted differences*	Adjusted differences†
	No	Yes
Length of stay, d [95% CI] ‡	7.0	5.2	−1.8 [−1.5, −2.1]	−0.9 [−1.1, −0.7]
Costs, USD [95% CI]§	$12,684	$10,667	−$2,017 [−$957, −$3,077]	−$636 [−$105, −$1,168]

^*Comparison of patients who did and did not receive alvimopan using 2 sample t test.

^†Adjusted for patient sociodemographic characteristics, clinical comorbidities, operative details, and process-of-care metrics described in Table 1 using generalized estimating equation models.

^‡Length of stay defined as time from surgery to discharge.

^§Hospital costs from the payer perspective.