Investigating social deprivation and comorbid mental health diagnosis as predictors of treatment access among patients with an opioid use disorder using substance use services: a prospective cohort study

Table 5 Cox regression/survival analysis contact with crisis/inpatient following access to substance use service

	Unadjusted regression			Partially adjusted regression ^a			Fully adjusted regression ^b
	HR	95% CI	p-value	HR	95% CI	p-value	HR	95% CI	p-value
Social deprivation
Q1 (least deprived)	1			1			1
Q2	0.88	[0.39,1.98]	0.754	0.88	[0.39,1.98]	0.754	0.77	[0.33,1.79]	0.550
Q3 (most deprived)	0.67	[0.30,1.50]	0.329	0.67	[0.30,1.50]	0.329	0.76	[0.32,1.81]	0.542
No LSOA	0.84	[0.34–2.06]	0.708	0.84	[0.34–2.06]	0.708	0.43	[0.12,1.57]	0.201
Recorded mental health comorbidity
No recorded diagnosis	1			1			1
One recorded mental health diagnosis	9.62	[3.78,24.44]	< 0.001	9.62	[3.78,24.44]	< 0.001	7.77	[2.73,22.08]	< 0.001
Non-opioid substance use diagnosis	2.60	[1.31,5.15]	0.006	2.60	[1.31,5.15]	0.006	2.30	[1.12,4.73]	0.024
Multiple recorded diagnosis	7.18	[3.46,14.91]	< 0.001	7.18	[3.46,14.91]	< 0.001	7.05	[3.19,15.56]	< 0.001

^a Partially adjusted for the other exposure variable
^b Fully adjusted for the other exposure and confounders (age, sex, ethnicity, marital status, population density, and social fragmentation

ISSN: 1747-597X