Univariate analysis exploring potential predictors in successful smoking cessation (n=176)_
| Variables | OR | 95% CI | P value |
|---|---|---|---|
| Age | 1.02 | 0.99–1.05 | 0.17 |
| Gender | 0.95 | 0.47–1.88 | 0.87 |
| Education (ref. Primary School) | |||
| Completed secondary school | 0.47 | 0.15–1.49 | 0.19 |
| Completed university | 0.42 | 0.16–1.15 | 0.09 |
| Partnered (yes/no) | 1.23 | 0.55–2.74 | 0.61 |
| No. of children | 1.00 | 0.73–1.36 | 0.99 |
| Age of starting to smoke | 1.04 | 0.97–1.11 | 0.28 |
| No. of cigarettes per day | 0.96 | 0.91–1.00 | 0.04 |
| No. of quit attempts | 1.08 | 0.98–1.20 | 0.13 |
| Confidence in quitting (0–10) | 0.97 | 0.97–1.29 | 0.19 |
| Other family members smoking (no/yes) | 1.69 | 0.84–3.38 | 0.14 |
| Household smoking restrictions (ref. smoking everywhere) | |||
| Nobody smokes inside | 2.92 | 0.62–13.70 | 0.17 |
| Smoking in some areas | 2.67 | 0.56–12.74 | 0.22 |
| Dependence (FTND, 0–10) | 0.73 | 0.31–0.74 | <0.01 |
| Adherence | 2.55 | 1.20–5.38 | <0.01 |
| Treatment type (Varenicline/Cytisine) | 0.69 | 0.34–1.38 | 0.29 |
| General health (0–5) | 0.73 | 0.51–1.04 | 0.08 |
Demographic and clinical characteristics of responders and non-responders (n=715)_
| Characteristics | Responders n (%) | Non-responders n (%) | P value |
|---|---|---|---|
| No. of smokers | 176 (24.6) | 539 (75.4) | <0.01 |
| Age, mean (SD) | 50.9 (11.7) | 47.2 (14.2) | |
| Range in years | 23–73 | 18–84 | |
| Missing values | 11 (2.0) | ||
| Gender | |||
| Female | 96 (54.5) | 242 (45.8) | <0.05 |
| Male | 80 (45.5) | 297 (54.2) | |
| Education | |||
| Primary school or less | 38 (21.6) | 103 (19.1) | 0.83 |
| Completed secondary school | 118 (67.0) | 362 (67.2) | |
| Completed university | 20 (11.4) | 64 (11.9) | |
| Missing values | 10 (1.9) | ||
| Marital status | |||
| Married | 82 (46.6) | 205 (38.0) | 0.16 |
| In relationship | 54 (30.7) | 162 (30.1) | |
| Single | 24 (13.6) | 90 (16.7) | |
| Widowed/divorced | 16 (9.1) | 71 (13.2) | |
| Missing values | 11 (2.0) | ||
| No. of children, mean (SD) | 1.65 (1.1) | 1.34 (1.0) | <0.01 |
| Missing values | 14 (2.6) | ||
| General health, mean (SD) | 3.1 (1.0) | 2.70 (0.97) | <0.01 |
| Missing values | 11 (2.0) | ||
| No. of cigarettes per day, mean (SD) | 19.2 (8.8) | 15.7 (9.1) | <0.01 |
| Missing values | 21 (3.9) | ||
| Age at start of smoking, mean (SD) | 19.5 (3.3) | 18.9 (5.0) | 0.69 |
| Missing values | 8 (1.5) | ||
| Dependence (FTND, 0–10), mean (SD) | 4.72 (2.1) | 3.89 (2.0) | <0.01 |
| Missing values | 15 (2.8) |
Multivariate logistic regression between successful smoking cessation and potential predictors (n=176)_
| Variables | OR | 95% CI | P value |
|---|---|---|---|
| Age | 1.04 | 0.99–1.08 | 0.06 |
| Education (ref. Primary School) | |||
| Completed secondary school | 0.60 | 0.21–1.69 | 0.32 |
| Completed university | 1.61 | 0.38–6.81 | 0.52 |
| Other family members smoking (no/yes) | 1.02 | 0.44–2.35 | 0.96 |
| Household smoking restrictions (ref. smoking everywhere) | |||
| Nobody smokes inside | 2.47 | 0.45–13.61 | 0.30 |
| No. of days of smoking | 0.96 | 0.85–1.08 | 0.50 |
| No. of cigarettes per day | 1.00 | 0.95–1.06 | 0.97 |
| No. of quit attempts | 1.00 | 0.88–1.14 | 0.94 |
| Confidence in quitting (0–10) | 1.09 | 0.92–1.28 | 0.33 |
| Dependence (FTND, 0–10) | 0.75 | 0.58–0.96 | 0.02 |
| Adherence | 3.53 | 1.47–8.51 | <0.01 |
| General health (0–5) | 0.70 | 0.43–1.16 | 0.17 |