Risk of major cancers associated with various forms of tobacco use in India: a systematic review and meta-analysis

Prasad, Jang Bahadur; Dhar, Murali

doi:10.1007/s10389-018-0992-7

Cited by 7 publications

(7 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Prev. Cessation 2019;5(October):34 https://doi.org/10.18332/tpc/112596 between SLT and oral cancer risk, from different parts of the world [20][21][22][23][24][25][26][27][28][29][30][31] . Some of the published reviews could not be included in the study because of potential risk of bias due to non-strict criteria of inclusion of primary studies in the review and for not following PRISMA guidelines [32][33][34] .…”

Section: Resultsmentioning

confidence: 99%

“…Some systematic reviews estimated SLT type-specific risk from various studies. Five reviews 20,22,24,26,28 estimated the risk for SLT, whereas three estimated for chewing tobacco 20,23,26 and risk estimates for paan/betel quid with tobacco were given in four reviews 20,21,23,25 . Separate estimates for males and females were given in three reviews 20,21,28 .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Association of smokeless tobacco with oral cancer: A review of systematic reviews

Asthana¹,

Vohra²,

Labani³

2019

Tob. Prev. Cessation

View full text Add to dashboard Cite

INTRODUCTION Various primary studies and systematic reviews have been conducted to explain the association between smokeless tobacco and oral cancer. This study aims to consolidate and summarize the risk estimates from various systematic reviews with or without meta-analysis to provide the spectrum of estimates on the association between smokeless tobacco use and oral cancer. METHODS A comprehensive literature search was done on various databases (PubMed, Google Scholar, IndMED, and TOXLINE) by two of the authors independently. Both qualitative and quantitative data extraction and analysis were performed for the included systematic reviews. Range of risk estimates was obtained and analyzed as quantitative findings due to the limitation of an overview of reviews for the pooled estimates. CASP (Critical Appraisals Skills Programme) and AMSTAR 2 (A Measurement Tool to Assess Systematic Reviews) tools were used for the quality assessment of the studies included. RESULTS In total, 12 systematic reviews with or without meta-analysis were included in the review. There was a positive and strong association of Smokeless Tobacco (SLT) use with oral cancer irrespective of gender, region, and type of smokeless tobacco. The risk estimate for the SouthEast Asia Region (SEAR) ranged 4.44-7.90, for Gutkha it was 8.67, while for Paan it ranged 6.3-7.90 and for overall SLT it ranged 1.36-7.90. Risk estimate for females ranged 5.83-14.56. CONCLUSIONS The study confirmed the association between SLT use and oral cancer. These findings are of high importance, especially to the SouthEast Asia Region.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Association of smokeless tobacco with oral cancer: A review of systematic reviews

Asthana¹,

Vohra²,

Labani³

2019

Tob. Prev. Cessation

View full text Add to dashboard Cite

show abstract

“…5 Some study also supported and indicates that bidi smoking has a greater risk in developing the cancer of lung, oropharynx and esophagus. [18][19][20][21][22] Mouth cancer is a second large burden among all ten TRCs site. Out of all tobacco related mouth cancer, around 55% are due to tobacco.…”

Section: Discussionmentioning

confidence: 99%

“…In view of this, Prasad and Dhar (2018) conducted a metaanalysis and reported pooled estimate of RR for different combinations of exposure (different forms of tobacco use) and outcome (different cancers associated with tobacco use. 18 Present study utilized the required data on RR from this study.…”

Section: (C) Relative Risk/odds Ratiomentioning

confidence: 99%

Assessment and projection of burden of cancer due to tobacco in India till 2025

Prasad

Dhar

2020

Clinical Epidemiology and Global Health

Self Cite

View full text Add to dashboard Cite

Background: For effective planning and optimum allocation of resources, accurate assessment of burden due to tobacco and its projection is essential. There are number of reports in India during last 3-4 decades, reporting tobacco related cancers (TRC). However, there is no visible study in India attempting to assess cancers due to tobacco (CDT). Objectives: To assess CDT in India and States by sex and urban/rural and project the same till 2025. Materials and methods: The basic inputs required were 1) tobacco prevalence, 2) relative risk of cancer due to tobacco, 3) incidence rates of TRCs, and, 4) population. These were obtained respectively from 1) recent five rounds of NSSO, 2) our recently published study, 3) reports of PBCRs, and, 4) projections of Registrar General of India. Our recently published method was applied to assess the CDT and regression method for projection. Results: The overall burden of CDT in India was estimated to be 169 thousands in 2015 and it was projected to around 236 thousands by 2025, an increase of nearly 39.6%. CDT accounted for nearly half of TRCs. The CDT as percentage of TRC was highest for Tripura followed by Meghalaya, Manipur, Mizoram and West Bengal. Detailed analysis indicated regional diversity in both CDT and TRCs. Conclusions: Present study reports absolute burden of CDT as well as the same as a percentage of TRC for India and its States till 2025. This may help policy planners and administrators in prioritizing the resources and proactive decisions pertaining to anti-tobacco measures. Non-availability of enough PBCRs to capture regional diversity may also be addressed by competent authorities.

show abstract

“…21,22 Smoking tobacco is a major cause for oropharynx, larynx and lung cancer. Supported by a study conducted by Prasad & Dhar 17 The highest numbers of cancer cases due to tobacco are found in Bihar. It may be due to a higher number of tobacco consumers.…”

Section: Discussionmentioning

confidence: 99%

The burden of cancer cases attributable to tobacco in India: case of Kerala and Bihar states

Prasad¹,

Kumar²,

Biradar³

2020

JCPCR

Self Cite

View full text Add to dashboard Cite

Background: For effective planning and administrative purpose, a precise estimate of burden due to tobacco and projection figure is essential. There were some studies in India, reporting tobacco-related cancers. However, there is no observable study in India, especially for these backward and forward state, attempting to assess cancers due to tobacco for measuring the geographical variations. Hence, this study tried to highlights geographic variation between one from developed state is as Kerala, and another one is from not so well-developed state as Bihar in India. Materials and methods: Tobacco prevalence, the relative risk of cancer due to tobacco, incidence rates of tobacco-related cancers, and population were obtained respectively from recent five rounds of Nation Sample Survey, our recently published study, reports of Population-Based Cancer Registries, and projections of Registrar General of India. Prasad and Dhar published generalised Population Attributable Risk method (2018) was used to assess cancer due to tobacco and regression method for prediction. Results: The burden of cancer cases due to tobacco was found highest in the state of Bihar (23,679), while in Kerala, it was 5,981 in the year 2015 and increased to 42,244 and 6,646 by 2025 in Bihar and Kerala respectively. Lung cancer is the leading cancer sites followed by mouth and tongue cancers. In Kerala, the proportion of smoking is found to be high and lead to the higher proportions of larynx cancers (61percent) followed by oropharynx (59 percent) and lung cancer (58 percent) and are likely to increase from 2015 to 2025 slightly. In Bihar, around three fourth of mouth cancers cases being due to chewing followed by oesophagus (59 percent), tongue (54 percent) and so on. Conclusion: Present study reports the absolute burden of cancer due to tobacco, Tobacco-Related Cancer as well as a percent change of it for Kerala and Bihar till 2025. It might be helpful to policy planners and administrators in decision making relating to anti-tobacco measures.

show abstract

Risk of major cancers associated with various forms of tobacco use in India: a systematic review and meta-analysis

Cited by 7 publications

References 44 publications

Association of smokeless tobacco with oral cancer: A review of systematic reviews

Association of smokeless tobacco with oral cancer: A review of systematic reviews

Assessment and projection of burden of cancer due to tobacco in India till 2025

The burden of cancer cases attributable to tobacco in India: case of Kerala and Bihar states

Contact Info

Product

Resources

About