Skip to main content

Table 4 III Results of standard and imputed models for associations between system-level changes: ACT (OFFER)

From: An observational study of system-level changes to improve the recording of very brief advice for smoking cessation in an inpatient mental health setting

Variable

Categories/units

Standard model (n = 2440)

Imputed model (n = 2513)

OR (95%CI)

P

OR (95%CI)

p

A)CQUIN programme

Financial incentive

April 2014–

1.49 (0.93–2.40)

0.099

1.53 (0.95–2.45)

0.078

B)Smoke-free policy

Smoke-free policy

Oct 2014–

1.15 (0.63–2.09)

0.650

1.17 (0.64–2.12)

0.611

Time interaction

 

0.98 (0.88–1.08)

0.675

0.97 (0.88–1.08)

0.605

C)Enhancements to EHCR

C1) Temporary form

Jul 2014–Nov 2014

4.18 (2.47–7.05)

< 0.001

4.22 (2.51–7.12)

< 0.001

C2) Amendments to recording of VBA

Jan 2015–

0.86 (0.39–1.90)

0.710

0.87 (0.40–1.90)

0.727

C3) Electronic referral system (NRS)

Sept 2015–

1.05 (0.57–1.95)

0.868

1.09 (0.59–1.99)

0.783

Time interaction

 

1.42 (1.25–1.62)

< 0.001

1.43 (1.26–1.62)

< 0.001

Admission characteristics

Admission date

Months (since Jan 2011)

0.99 (0.96–1.01)

0.272

0.99 (0.96–1.01)

0.255

Length of stay

Days

1.00 (1.00–1.00)

< 0.001

1.00* (1.00–1.00)

< 0.001

Length of stay squared

Days

N/A

 

N/A

 

Previous admission characteristics (last 6 months)

No admission

ref

 

ref

 

Admission (smoking status not recorded)

1.13 (0.84–1.54)

0.415

1.13 (0.83–1.53)

0.432

Admission with smoking status recorded (non-smoker)

1.94 (0.56–6.73)

0.295

1.91 (0.55–6.62)

0.305

Admission with smoking status recorded (smoker and referral not offered)

0.50 (0.30–0.84)

0.009

0.50 (0.30–0.84)

0.009

Admission with referral offered

3.48 (2.22–5.45)

< 0.001

3.47 (2.22–5.43)

< 0.001

Individual characteristics

Age

16–24

0.66 (0.46–0.93)

0.017

0.65 (0.46–0.92)

0.014

25–34

0.78 (0.56–1.08)

0.129

0.79 (0.57–1.09)

0.144

35–44

ref

 

ref

 

45–54

0.71 (0.51–1.00)

0.050

0.72 (0.52–1.01)

0.055

54–64

0.68 (0.44–1.05)

0.083

0.70 (0.45–1.07)

0.099

≥65

1.20 (0.47–3.07)

0.707

1.20 (0.47–3.06)

0.710

Sex

Male

ref

 

ref

 

Female

1.01 (0.80–1.28)

0.933

1.03 (0.81–1.30)

0.807

Ethnicity

White

ref

 

ref

 

African

0.88 (0.62–1.26)

0.496

0.91 (0.64–1.29)

0.595

Caribbean

1.14 (0.76–1.71)

0.541

1.15 (0.77–1.73)

0.496

Other black background

0.86 (0.64–1.16)

0.337

0.88 (0.65–1.18)

0.390

Mixed

1.28 (0.70–2.35)

0.427

1.29 (0.70–2.38)

0.407

Asian (inc. Chinese)

1.01 (0.58–1.75)

0.973

1.04 (0.60–1.81)

0.883

Other

1.06 (0.68–1.65)

0.802

1.09 (0.70–1.69)

0.708

Socioeconomic deprivation

3 and 2 (least/medium)

ref

 

ref

 

1 (most deprivation)

1.07 (0.84–1.35)

0.584

1.07 (0.85–1.35)

0.574

Legally detained in hospital for treatment (lifetime)

No

ref

 

ref

 

Yes

0.94 (0.69–1.28)

0.707

0.96 (0.71–1.30)

0.794

HoNOS score

HoNOS scale (0–37)

0.99 (0.97–1.02)

0.621

1.00 (0.97–1.02)

0.702

Diagnosis (ICD-10 disorder type)

F30–F39 (affective disorders)

ref

 

ref

 

F20 or schizophrenia

1.11 (0.80–1.53)

0.530

1.08 (0.79–1.49)

0.621

F21–F29 (schizotypal, delusional)

1.27 (0.91–1.77)

0.166

1.25 (0.90–1.73)

0.191

<F20, >F40 and other

0.97 (0.71–1.35)

0.873

0.99 (0.72–1.36)

0.944

Back to article page

BMC Public Health

ISSN: 1471-2458

Contact us