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Table 5 Logistic regression model for outcome 3: all-cause death between 31 days and 1 year after discharge (n = 1770)

From: Evaluation of a hospital-initiated tobacco dependence treatment service: uptake, smoking cessation, readmission and mortality

 

Category

Unadjusted OR (95%CI)

p-value

Adjusted OR (95%CI)

p-value

Death 31 days to 1 year

 Hospital

A

(Ref.)

 

(Ref.)

 

B

0.65 (0.41–0.98)

0.047

1.08 (0.65–1.80)

0.773

 Age on admission

60 + 

(Ref.)

 

(Ref.)

 

40–59

0.36 (0.24–0.55)

 < 0.001

0.54 (0.33–0.89)

0.015

16–39a

0.04 (0.01–0.13)

 < 0.001

0.08 (0.02–0.28)

 < 0.001

 Sex

Male

(Ref.)

 

(Ref.)

 

Female

0.57 (0.36–0.89)

0.014

0.52 (0.32–0.84)

0.008

 Ethnicity

White

(Ref.)

 

(Ref.)

 

Black

0.49 (0.23–1.02)

0.058

0.55 (0.24–1.25)

0.154

Mixed/Asian/Othera

0.59 (0.30–1.17)

0.129

0.94 (0.44–2.00)

0.874

 Intention at first TDS assessment

Declined/withdrawal managementa

(Ref.)

 

(Ref.)

 

Quit attempt

0.45 (0.27–0.77)

0.003

0.40 (0.22–0.73)

0.003

 Heaviness of Smoking Index

Low

(Ref.)

 

(Ref.)

 

Medium/higha

1.25 (0.74–2.12)

0.404

0.84 (0.45–1.55)

0.572

 Smoking cessation aids

None

(Ref.)

 

(Ref.)

 

Single

0.91 (0.54–1.51)

0.703

0.88 (0.50–1.55)

0.656

Combination

1.02 (0.66–1.58)

0.938

1.04 (0.62–1.76)

0.873

 Primary diagnosis

Smoking-related

3.63 (2.43–5.41)

 < 0.001

2.87 (1.82–4.53)

 < 0.001

 Past diagnoses

Cancer

6.83 (4.42–10.44)

 < 0.001

3.91 (2.41–6.35)

 < 0.001

COPD

2.72 (1.82–4.03)

 < 0.001

0.85 (0.53–1.37)

0.505

CVD

3.09 (1.95–4.78)

 < 0.001

1.17 (0.70–1.96)

0.556

Diabetes

3.17 (2.10–4.75)

 < 0.001

1.74 (1.08–2.81)

0.023

Mental and behav

1.72 (1.12–2.72)

0.016

1.84 (1.11–3.05)

0.018

 IMD tertile

Lower

(Ref.)

 

(Ref.)

 

Middle

0.73 (0.46–1.16)

0.178

0.75 (0.45–1.25)

0.268

Upper

0.35 (0.13–0.97)

0.044

0.40 (0.13–1.20)

0.103

 Smoking status 30 days

Smoker or unknownb

(Ref.)

 

(Ref.)

 

Non-smoker

0.94 (0.48–1.84)

0.859

1.41 (0.65–3.05)

0.378

  1. Unadjusted and fully adjusted estimates from logistic regression model for outcome 3: all-cause death between 31 days and 1 year after discharge, using imputed analysis restricted to first admission only and excluding patients who died within 30 days of discharge (n = 1770). Adjusted model adjusted for all variables in the table
  2. IMD Index of Multiple Deprivation, HSI Heaviness of Smoking Index, CVD cardiovascular disease
  3. aCategories collapsed due to sparse data
  4. bPatients with ‘unknown’ smoking status were presumed to be smokers, as per previous studies [8, 11]