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Table 3 Univariable logistic regression analyses for responders-only point prevalence and 6-month continuous abstinence

From: Self-perceived ability to cope with stress and depressive mood without smoking predicts successful smoking cessation 12 months later in a quitline setting: a secondary analysis of a randomized trial

Point prevalence abstinence
Variable n/Na OR (95% CI for OR) p
Gender; men vs. women (ref) 81/358 vs. 277/358 0.53 (0.32–0.89) 0.016
Age, years    0.077
 - ≤ 34 (ref) 57/351 1.0  
 - 35-49 85/351 1.22 (0.62–2.39) 0.559
 - 50-64 145/351 0.94 (0.51–1.74) 0.844
 - ≥ 65 64/351 0.51 (0.24–1.06) 0.070
Number of smoked cigarettes/day (data journal) md = 8, q1 = 0, q3 = 15, N = 296 0.94 (0.92–0.97) < 0.001
Variables from baseline questionnaire
Number of years of education md = 12, q1 = 9, q3 = 14, N = 354 1.07 (0.99–1.16) 0.067
Number of years smoked before baseline md = 35, q1 = 20, q3 = 43, N = 343 0.99 (0.97–1.00) 0.076
Smoking the week before baseline; no vs. yes (ref) 121/358 vs. 237/358 4.29 (2.68–6.87) < 0.001
Passive smoking at baseline; not exposed vs. exposed (ref) 261/335 vs. 74/335 1.37 (0.81–2.31) 0.240
Drug use (NRT, Zyban®, Champix®) the week before baseline; yes vs. no (ref) 197/348 vs. 151/348 1.48 (0.97–2.27) 0.073
Snus use the week before baseline; yes vs. no (ref) 18/317 vs. 299/317 0.41 (0.14–1.19) 0.102
Other support at baseline: yesb vs. no (ref) 254/348 vs. 94/348 1.79 (1.10–2.92) 0.019
Likelihood of being smoke-free in 1 year (baseline, 1–10) md = 9, q1 = 7, q3 = 10, N = 346 1.26 (1.13–1.41) < 0.001
Handle stress and depression successfully without smoking (baseline, 1–10) md = 7, q1 = 4, q3 = 9, N = 345 1.22 (1.13–1.33) < 0.001
Will use pharmaceuticals if necessary (baseline,1–10) md = 10, q1 = 5, q3 = 10, N = 347 0.98 (0.91–1.04) 0.476
6-month continuous abstinence
Variable n/Na OR (95% CI for OR) p
Gender; men vs. women (ref) 81/358 vs. 277/358 0.62 (0.36–1.07) 0.087
Age, years    0.070
 - ≤ 34 (ref) 57/351 1.0  
 - 35-49 85/351 1.50 (0.75–2.99) 0.254
 - 50-64 145/351 1.00 (0.53–1.91) 0.991
 - ≥ 65 64/351 0.57 (0.26–1.25) 0.160
Number of smoked cigarettes/day (data journal) md = 8, q1 = 0, q3 = 15, N = 296 0.94 (0.91–0.97) < 0.001
Variables from baseline questionnaire
Number of years of education md = 12, q1 = 9, q3 = 14, N = 354 1.06 (0.98–1.15) 0.145
Number of years smoked before baseline md = 35, q1 = 20, q3 = 43, N = 343 1.00 (0.98–1.01) 0.572
Smoking the week before baseline; no vs. yes (ref) 121/358 vs. 237/358 5.28 (3.28–8.49) < 0.001
Passive smoking at baseline; not exposed vs. exposed (ref) 261/335 vs. 74/335 1.87 (1.04–3.37) 0.037
Drug use (NRT, Zyban®, Champix®) the week before baseline; yes vs. no (ref) 197/348 vs. 151/348 1.28 (0.82–2.00) 0.278
Snus use the week before baseline; yes vs. no (ref) 18/317 vs. 299/317 0.21 (0.05–0.93) 0.039
Other support at baseline: yesb vs. no (ref) 254/348 vs. 94/348 1.53 (0.92–2.56) 0.103
Likelihood of being smoke-free in 1 year (baseline, 1–10) md = 9, q1 = 7, q3 = 10, N = 346 1.39 (1.21–1.59) < 0.001
Handle stress and depression successfully without smoking (baseline, 1–10) md = 7, q1 = 4, q3 = 9, N = 345 1.29 (1.18–1.41) < 0.001
Will use pharmaceuticals if necessary (baseline,1–10) md = 10, q1 = 5, q3 = 10, N = 347 0.96 (0.90–1.03) 0.264
  1. a n = number in category, N = total number in analysis
  2. b Social and/or professional support