OBJECTIVES: The aims of this study were to identify prospective determinants of smoking cessation in COPD patients, and to assess whether prospective determinants vary between two different cessation interventions. METHODS:Two hundred and twenty-five moderate to severe COPD patients were randomly allocated to two smoking cessation interventions. One-year cotinine-validated continuous abstinence rates were 9% for the minimal intervention strategy for lung patients (LMIS) and 19% for the SmokeStopTherapy (SST). The baseline characteristics that showed a significant univariate relationship with 1-year continuous abstinence (p<.20) were included in the logistic regression model. This procedure was performed for each intervention separately. Variables that did not remain independent predictors were removed. RESULTS: For the SST separately, no independent significant predictor remained. For the LMIS, attitude towards smoking cessation (OR: 11.8; 95% CI: 1.7-81.5; p=.013) and cotinine level (OR: 2.1; 95% CI: 1.08-3.93; p=.028) remained significant predictors. Within the LMIS, 31% of the variance in continuous abstinence was explained by these variables (p=.003). CONCLUSION: This study suggests that a moderately intensive intervention (LMIS) is primarily suitable for COPD patients with a positive attitude regarding smoking cessation. The more intensive SST can be an alternative for patients without such baseline characteristic. PRACTICE IMPLICATIONS: This stepped-care approach in smoking cessation counseling may be useful in clinical practice and will enable health care providers to match interventions to individual needs and increase efficiency.
RCT Entities:
OBJECTIVES: The aims of this study were to identify prospective determinants of smoking cessation in COPDpatients, and to assess whether prospective determinants vary between two different cessation interventions. METHODS: Two hundred and twenty-five moderate to severe COPDpatients were randomly allocated to two smoking cessation interventions. One-year cotinine-validated continuous abstinence rates were 9% for the minimal intervention strategy for lungpatients (LMIS) and 19% for the SmokeStopTherapy (SST). The baseline characteristics that showed a significant univariate relationship with 1-year continuous abstinence (p<.20) were included in the logistic regression model. This procedure was performed for each intervention separately. Variables that did not remain independent predictors were removed. RESULTS: For the SST separately, no independent significant predictor remained. For the LMIS, attitude towards smoking cessation (OR: 11.8; 95% CI: 1.7-81.5; p=.013) and cotinine level (OR: 2.1; 95% CI: 1.08-3.93; p=.028) remained significant predictors. Within the LMIS, 31% of the variance in continuous abstinence was explained by these variables (p=.003). CONCLUSION: This study suggests that a moderately intensive intervention (LMIS) is primarily suitable for COPDpatients with a positive attitude regarding smoking cessation. The more intensive SST can be an alternative for patients without such baseline characteristic. PRACTICE IMPLICATIONS: This stepped-care approach in smoking cessation counseling may be useful in clinical practice and will enable health care providers to match interventions to individual needs and increase efficiency.
Authors: Rilana Prenger; Marcel E Pieterse; Louise M A Braakman-Jansen; Job van der Palen; Lieke C A Christenhusz; Erwin R Seydel Journal: Eur J Health Econ Date: 2012-01-06
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