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Scientific News
Predictors of smoking reduction among Blacks
Berg , C.B., Thomas, J. L., Guo, H., An, L. C., Okuyemi, K.S., Collins, T.C., and Ahluwalia, J.S.
2010-03-02 09:31:20
Predictors of smoking reductions amongst Blacks
Berg , C.B., Thomas, J. L., Guo, H., An, L. C., Okuyemi, K.S., Collins, T.C., and Ahluwalia, J.S.
Oxford Journals
ntr.oxfordjournals.org/cgi/content/abstract/ntq019v1
Introduction: Blacks who smoke have increased tobacco-related health risks. Cessation decreases the likelihood of many health problems. Smoking reduction may be important in the cessation process and potentially reduce health risks.
Methods: Because little is known about specific predictors of smoking reduction, we investigated factors predicting reduction among Black light smokers enrolled in a 26-week cessation trial. Specifically, we compared (a) reducers (reduced cigarettes per day [cpd] ≥50%) with nonreducers and (b) reducers with quitters. Baseline demographic, smoking-related, and psychosocial variables were collected, and Week 26 smoking status was assessed.
Results: Among 539 participants, 41.0% (n = 221) reduced their smoking, 17.6% (n = 95) quit, and 41.4% (n = 223) did not reduce their smoking by ≥50%. In comparison with reducers, nonreducers were more likely to have their first cigarette within 30 min of waking (odds ratio [OR] = 2.4, 95% CI = 1.47–3.93), lower baseline cpd (OR = 0.84, 95% CI = 0.77–0.93), higher baseline cotinine levels (OR = 1.002, 95% CI = 1.000–1.003), lower perceived stress (OR = 0.86, 95% CI = 0.78–0.95), and higher Smoking Consequences Questionnaire (SCQ) negative social impression scores (OR = 1.04, 95% CI = 1.01–1.06), after controlling for treatment arm, gender, and age. Significant predictors of smoking cessation versus reduction included lower baseline cpd (OR = 0.85, 95% CI = 0.75–0.95), higher nicotine dependence (OR = 1.47, 95% CI = 1.09–1.98), lower baseline cotinine levels (OR = 0.996, 95% CI = 0.994–0.998), higher body mass index (OR = 1.05, 95% CI = 1.01–1.08), lower perceived stress (OR = 0.82, 95% CI = 0.72–0.95), and higher SCQ negative social impression scores (OR = 1.05, 95% CI = 1.01–1.08).
Discussion: Distinct predictors are associated with different trajectories of smoking behavior change (i.e., reduction vs. cessation vs. no change).
Berg , C.B., Thomas, J. L., Guo, H., An, L. C., Okuyemi, K.S., Collins, T.C., and Ahluwalia, J.S.
Oxford Journals
ntr.oxfordjournals.org/cgi/content/abstract/ntq019v1
Introduction: Blacks who smoke have increased tobacco-related health risks. Cessation decreases the likelihood of many health problems. Smoking reduction may be important in the cessation process and potentially reduce health risks.
Methods: Because little is known about specific predictors of smoking reduction, we investigated factors predicting reduction among Black light smokers enrolled in a 26-week cessation trial. Specifically, we compared (a) reducers (reduced cigarettes per day [cpd] ≥50%) with nonreducers and (b) reducers with quitters. Baseline demographic, smoking-related, and psychosocial variables were collected, and Week 26 smoking status was assessed.
Results: Among 539 participants, 41.0% (n = 221) reduced their smoking, 17.6% (n = 95) quit, and 41.4% (n = 223) did not reduce their smoking by ≥50%. In comparison with reducers, nonreducers were more likely to have their first cigarette within 30 min of waking (odds ratio [OR] = 2.4, 95% CI = 1.47–3.93), lower baseline cpd (OR = 0.84, 95% CI = 0.77–0.93), higher baseline cotinine levels (OR = 1.002, 95% CI = 1.000–1.003), lower perceived stress (OR = 0.86, 95% CI = 0.78–0.95), and higher Smoking Consequences Questionnaire (SCQ) negative social impression scores (OR = 1.04, 95% CI = 1.01–1.06), after controlling for treatment arm, gender, and age. Significant predictors of smoking cessation versus reduction included lower baseline cpd (OR = 0.85, 95% CI = 0.75–0.95), higher nicotine dependence (OR = 1.47, 95% CI = 1.09–1.98), lower baseline cotinine levels (OR = 0.996, 95% CI = 0.994–0.998), higher body mass index (OR = 1.05, 95% CI = 1.01–1.08), lower perceived stress (OR = 0.82, 95% CI = 0.72–0.95), and higher SCQ negative social impression scores (OR = 1.05, 95% CI = 1.01–1.08).
Discussion: Distinct predictors are associated with different trajectories of smoking behavior change (i.e., reduction vs. cessation vs. no change).