Complete opioid transition to sublingual Buprenorphine after abdominal surgery is associated with significant reductions in opioid requirements, but not reduction in hospital length of stay: a retrospective cohort study

Table 5 Multivariate Linear Regression Model (Dependent Variable: Hospital length of stay)

	Unstandardised Beta Coefficients^a	P value	95% Confidence Interval for Beta
	Unstandardised Beta Coefficients^a	P value	Lower Bound	Upper Bound
(Constant)	−15.87	.03	−30.30	−1.44
Transition to SLBup^b	3.89	.16	−1.56	9.34
Age	0.13	.12	−.04	.30
POD transition from parenteral opioid	3.19	<.0001	2.06	4.32
Mean 24-hourly pre-transition OMEDDs	−0.007	.65	−.04	.02
Mean 24-hourly post-transition OMEDDs	0.002	.95	−.06	.07
Mean 24-hourly pre-transition NRS-11 POM	−0.34	.74	−1.72	2.41
Mean 24-hourly post-transition NRS-11 POM	0.38	.67	−1.36	2.12
Emergency surgery^b	3.62	.85	−6.48	7.85
Acuity of surgical presentation scale	1.53	.041	.13	6.18

^aunstandardized coefficients – Covariates (a, b, c etc) affect the dependent variable (y) by Y = constant + (a) x [coefficient_a] + (b) x [coefficient_b]
^bsignifies binary covariate – If binary factor is present, there is an increase of (β-coefficient x dependent variable unit) in the dependant variable unit value. For negative β-coefficients, the dependant variable similarly decreases

ISSN: 1471-2253