Lei Wu1,2, Yao He1,2,3, Bin Jiang4, Di Zhang1,2, Hui Tian5, Fang Zuo4, Tai Hing Lam1,6. 1. Institute of Geriatrics, Chinese People's Liberation Army of China General Hospital, Beijing, China. 2. Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army of China General Hospital, Beijing, China. 3. State Key Laboratory of Kidney Disease, Chinese People's Liberation Army of China General Hospital, Beijing, China. 4. Nanlou Department of Acupuncture, Chinese People's Liberation Army of China General Hospital, Beijing, China. 5. Nanlou Department of Endocrinology, Chinese People's Liberation Army of China General Hospital, Beijing, China. 6. School of Public Health, The University of Hong Kong, Hong Kong.
Abstract
BACKGROUND AND AIMS: There is inconsistent evidence that behavioural support to promote smoking reduction is effective at increasing smoking cessation. We examined the effectiveness of brief physician advice together with four very brief telephone calls in promoting smoking cessation among Chinese men via reduction compared with equivalent advice on diet and exercise. DESIGN: A two-group pragmatic randomized controlled trial. PARTICIPANTS AND SETTING:Male patients attending the Endocrinology and Acupuncture out-patient clinics of a general hospital in Beijing, China. INTERVENTION AND COMPARATORS: Physicians advised participants allocated to the smoking-reduction intervention (SRI, n = 181) group to reduce smoking to at least half of their current consumption within 1 month at baseline. At follow-up, a telephone counsellor repeated this advice if the participant had not reduced their cigarette consumption. Participants who had reduced consumption were encouraged to quit smoking. Physicians gave participants in the exercise and diet advice (EDA, n = 188) control group brief advice about physical activity and healthy diet at baseline, and a telephone counsellor reinforced this at each follow-up interview. Both groups had one face-to-face interview at baseline plus five telephone interviews and interventions (approximately 1 minute each) at 1 week and 1-, 3-, 6- and 12-month follow-up. MEASUREMENTS: The primary outcome was self-reported 6-month prolonged abstinence rate at 12-month follow-up interview. FINDINGS: By intention-to-treat, the self-reported 6-month prolonged abstinence rate at 12-month follow-up in the SRI groups (19 quitters, 15.7%) was higher, but not significantly, than the EDA control group (10 quitters, 7.8%), and the adjusted odds ratio (OR) and 95% confidence interval (CI) was 2.26 (0.97-5.26), P = 0.062. The self-reported 7-day point prevalence quit rate (secondary outcome) in the SRI group was significantly higher than the control group at each follow-up interview (at 12-month follow-up: 13.3 versus 6.9%, OR (95% CI) = 2.09 (1.01, 4.34), P = 0.049). CONCLUSIONS: A very brief, proactive and low-cost smoking-reduction intervention without medications for Chinese male smokers with no intention to quit appears to increase smoking abstinence.
RCT Entities:
BACKGROUND AND AIMS: There is inconsistent evidence that behavioural support to promote smoking reduction is effective at increasing smoking cessation. We examined the effectiveness of brief physician advice together with four very brief telephone calls in promoting smoking cessation among Chinese men via reduction compared with equivalent advice on diet and exercise. DESIGN: A two-group pragmatic randomized controlled trial. PARTICIPANTS AND SETTING: Male patients attending the Endocrinology and Acupuncture out-patient clinics of a general hospital in Beijing, China. INTERVENTION AND COMPARATORS: Physicians advised participants allocated to the smoking-reduction intervention (SRI, n = 181) group to reduce smoking to at least half of their current consumption within 1 month at baseline. At follow-up, a telephone counsellor repeated this advice if the participant had not reduced their cigarette consumption. Participants who had reduced consumption were encouraged to quit smoking. Physicians gave participants in the exercise and diet advice (EDA, n = 188) control group brief advice about physical activity and healthy diet at baseline, and a telephone counsellor reinforced this at each follow-up interview. Both groups had one face-to-face interview at baseline plus five telephone interviews and interventions (approximately 1 minute each) at 1 week and 1-, 3-, 6- and 12-month follow-up. MEASUREMENTS: The primary outcome was self-reported 6-month prolonged abstinence rate at 12-month follow-up interview. FINDINGS: By intention-to-treat, the self-reported 6-month prolonged abstinence rate at 12-month follow-up in the SRI groups (19 quitters, 15.7%) was higher, but not significantly, than the EDA control group (10 quitters, 7.8%), and the adjusted odds ratio (OR) and 95% confidence interval (CI) was 2.26 (0.97-5.26), P = 0.062. The self-reported 7-day point prevalence quit rate (secondary outcome) in the SRI group was significantly higher than the control group at each follow-up interview (at 12-month follow-up: 13.3 versus 6.9%, OR (95% CI) = 2.09 (1.01, 4.34), P = 0.049). CONCLUSIONS: A very brief, proactive and low-cost smoking-reduction intervention without medications for Chinese male smokers with no intention to quit appears to increase smoking abstinence.
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