Tan Van Bui1, Leigh Blizzard2, Khue Ngoc Luong3, Ngoc Le Van Truong3, Bao Quoc Tran3, Son Thai Ha3, Hai Ngoc Phung4, Petr Otahal4, Srikanth Velandai5, Mark Raymond Nelson4, Thuy Bich Au4, Mai Hoang Tran4, Quan Long Huynh4, Michele Callisaya5, Seana Gall4. 1. Menzies Research Institute Tasmania, University of Tasmania, Hobart, Tasmania, Australia; Public Health Faculty, Can Tho University of Medicine and Pharmacy, Can Tho, Vietnam; 2. Menzies Research Institute Tasmania, University of Tasmania, Hobart, Tasmania, Australia; Leigh.Blizzard@utas.edu.au. 3. Medical Services Administration, Ministry of Health of the Socialist Republic of Vietnam, Ha Noi, Vietnam; 4. Menzies Research Institute Tasmania, University of Tasmania, Hobart, Tasmania, Australia; 5. Menzies Research Institute Tasmania, University of Tasmania, Hobart, Tasmania, Australia; Department of Medicine, Southern Clinical School, Monash Medical Centre, Monash University, Clayton, Victoria, Australia.
Abstract
INTRODUCTION: To supplement limited information on tobacco use in Vietnam, data from a nationally-representative population-based survey was used to estimate the prevalence of smoking among 25-64 year-olds. METHODS: This study included 14,706 participants (53.5% females, response proportion 64%) selected by multi-stage stratified cluster sampling. Information was collected using the World Health Organization STEPwise approach to surveillance of risk factors for non-communicable disease (STEPS) questionnaire. Smoking prevalence was estimated with stratification by age, calendar year, and birth year. RESULTS: Prevalence of ever-smoking was 74.9% (men) and 2.6% (women). Male ever-smokers commenced smoking at median age of 19.0 (interquartile range [IQR]: 17.0, 21.0) years and smoked median quantities of 10.0 (IQR: 7.0, 20.0) cigarettes/day. Female ever-smokers commenced smoking at median age of 20.0 (IQR: 18.0, 26.0) years and smoked median quantities of 6.0 (IQR: 4.0, 10.0) cigarettes/day. Prevalence has decreased in recent cohorts of men (p = .001), and its inverse association with years of education (p < .001) has strengthened for those born after 1969 (interaction p < .001). At 60 years of age, 53.0% of men who had reached that age were current smokers and they had accumulated median exposures of 39.0 (IQR: 32.0, 42.0) years of smoking and 21.0 (IQR: 11.5, 36.0) pack-years of cigarettes. The proportion of ever-smokers has decreased consistently among successive cohorts of women (p < .001). CONCLUSIONS: Smoking prevalence is declining in recent cohorts of men, and continues to decline in successive cohorts of women, possibly in response to anti-tobacco initiatives commencing in the 1990s. Low proportions of quitters mean that Vietnamese smokers accumulate high exposures despite moderate quantities of cigarettes smoked per day.
INTRODUCTION: To supplement limited information on tobacco use in Vietnam, data from a nationally-representative population-based survey was used to estimate the prevalence of smoking among 25-64 year-olds. METHODS: This study included 14,706 participants (53.5% females, response proportion 64%) selected by multi-stage stratified cluster sampling. Information was collected using the World Health Organization STEPwise approach to surveillance of risk factors for non-communicable disease (STEPS) questionnaire. Smoking prevalence was estimated with stratification by age, calendar year, and birth year. RESULTS: Prevalence of ever-smoking was 74.9% (men) and 2.6% (women). Male ever-smokers commenced smoking at median age of 19.0 (interquartile range [IQR]: 17.0, 21.0) years and smoked median quantities of 10.0 (IQR: 7.0, 20.0) cigarettes/day. Female ever-smokers commenced smoking at median age of 20.0 (IQR: 18.0, 26.0) years and smoked median quantities of 6.0 (IQR: 4.0, 10.0) cigarettes/day. Prevalence has decreased in recent cohorts of men (p = .001), and its inverse association with years of education (p < .001) has strengthened for those born after 1969 (interaction p < .001). At 60 years of age, 53.0% of men who had reached that age were current smokers and they had accumulated median exposures of 39.0 (IQR: 32.0, 42.0) years of smoking and 21.0 (IQR: 11.5, 36.0) pack-years of cigarettes. The proportion of ever-smokers has decreased consistently among successive cohorts of women (p < .001). CONCLUSIONS: Smoking prevalence is declining in recent cohorts of men, and continues to decline in successive cohorts of women, possibly in response to anti-tobacco initiatives commencing in the 1990s. Low proportions of quitters mean that Vietnamese smokers accumulate high exposures despite moderate quantities of cigarettes smoked per day.
Authors: Tran Thi Thu Nga; Christopher Leigh Blizzard; Luong Ngoc Khue; Truong Le Van Ngoc; Tran Quoc Bao; Petr Otahal; Mark R Nelson; Costan G Magnussen; Bui Van Tan; Velandai Srikanth; Au Bich Thuy; Ha Thai Son; Phung Ngoc Hai; Tran Hoang Mai; Michele Callisaya; Seana Gall Journal: High Blood Press Cardiovasc Prev Date: 2021-01-16
Authors: Tan Van Bui; Christopher Leigh Blizzard; Khue Ngoc Luong; Ngoc Le Van Truong; Bao Quoc Tran; Petr Otahal; Velandai Srikanth; Mark Raymond Nelson; Thuy Bich Au; Son Thai Ha; Hai Ngoc Phung; Mai Hoang Tran; Michele Callisaya; Seana Gall Journal: PLoS One Date: 2015-10-20 Impact factor: 3.240
Authors: Tan Van Bui; Christopher Leigh Blizzard; Khue Ngoc Luong; Ngoc Le Van Truong; Bao Quoc Tran; Petr Otahal; Seana Gall; Mark R Nelson; Thuy Bich Au; Son Thai Ha; Hai Ngoc Phung; Mai Hoang Tran; Michele Callisaya; Velandai Srikanth Journal: BMC Public Health Date: 2016-06-10 Impact factor: 3.295
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Authors: Nhung T T Nguyen; Tran Minh Dien; Christian Schindler; Nguyen T B Lien; Nicole Probst-Hensch; Vu T H Lan; Nino Künzli; Laura Perez Journal: BMJ Open Date: 2017-07-31 Impact factor: 2.692
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