Evidence map›Paper›PMID 39691591›Full record

ArticleTobacco induced diseases2024

Changes in retail cigarette price after tax increase: Findings from the 2018-2020 ITC Vietnam surveys.

Thi Phuong Thao Tran, Thi Ngoc Phuong Nguyen, Thu Trang Vu, Thai Uyen Tran, Don Nguyen, Thi Hai Phan, Son Dao The, Min Kyung Lim, Anne C K Quah, Jin-Kyoung Oh and 1 more

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Article in Tobacco induced diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Thi Phuong Thao TranCenter for Population Health Sciences, Hanoi University of Public Health, Hanoi University of Public Health, Hanoi, Vietnam.
Thi Ngoc Phuong NguyenCenter for Population Health Sciences, Hanoi University of Public Health, Hanoi University of Public Health, Hanoi, Vietnam.
Thu Trang VuCenter for Population Health Sciences, Hanoi University of Public Health, Hanoi University of Public Health, Hanoi, Vietnam.
Thai Uyen TranCenter for Population Health Sciences, Hanoi University of Public Health, Hanoi University of Public Health, Hanoi, Vietnam.
Don NguyenCenter for Population Health Sciences, Hanoi University of Public Health, Hanoi University of Public Health, Hanoi, Vietnam.
Thi Hai PhanVietnam Tobacco Control Fund, Ministry of Health, Hanoi, Vietnam.
Son Dao TheCenter for Economics and Community Development, Hanoi, Vietnam.
Min Kyung LimDepartment of Social and Preventive Medicine, Inha University College of Medicine, Incheon, Republic of Korea.
Anne C K QuahDepartment of Psychology, University of Waterloo, Waterloo, Canada.
Jin-Kyoung OhNational Cancer Center, Graduate School of Cancer Science and Policy, Goyang-si, Republic of Korea.
Hoang Van MinhCenter for Population Health Sciences, Hanoi University of Public Health, Hanoi University of Public Health, Hanoi, Vietnam.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNo longitudinal study has investigated the impact of cigarette tax increases on retail prices in Vietnam. This study aims to describe changes in the purchase price of cigarettes following an excise tax increase from 70% to 75% in January 2019.

methodsData were collected from people who currently smoke cigarettes in the longitudinal ITC Vietnam surveys: 1870 participants in Wave 1 (pre-increase), 1564 in Wave 2 (post-increase), and 1308 in Wave 3 (post-increase). Weighted mean self-reported prices of a cigarette pack (with standard error) were calculated for participants who were successfully followed up across three waves. These mean prices were calculated for domestic and international brands, categorized by specific cigarette brands. Percentage changes in mean prices were also measured, and significant differences in mean prices between follow-up waves (Waves 2 and 3) and the baseline (Wave 1) were assessed using paired t-tests. For brands with very small sample sizes, we used non-parametric tests, specifically the Wilcoxon signed-rank test instead of paired t-tests.

resultsThe weighted mean price of a cigarette pack remained low and stable: VND 12330 (US$0.54) in 2018, VND 12700 (US$0.55) in 2019, and VND 12120 (US$0.53) in 2020 (1000 Vietnamese Dongs about US$0.04345, at 2018). International brands were substantially more expensive than domestic brands, but prices for both remained constant across all waves. Among domestic brands, Thang Long and Sai Gon showed slight price increases of around 3% and 5%, respectively (p<0.05). Among international brands, no statistically significant increase in mean prices was observed.

conclusionsThe retail price of cigarettes remains low, indicating that the slight tax increase was insufficient to raise the current retail price significantly. Therefore, a substantial increase in cigarette prices by adding a specific tax is necessary.

Indexed as

cigarette pricecigarette taxlongitudinal studylow- and middle-income countryVietnam

Identifiers

PMID39691591
PMCPMC11650784

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