Prevalence Of Smokeless Tobacco Use Research Articles

The Prevalence of Smokeless Tobacco Consumption and Its Effects on Gingival and Periodontal Health Among the Adults in the Emirates of Sharjah, UAE – A Cross-Sectional Study

ABSTRACT Introduction: Smokeless tobacco (SLT) has been linked with various oral signs and symptoms, such as oral mucosal lesions and gingival and periodontal effects. However, there is limited research on the prevalence of SLT use and its impact on gingival and periodontal health in the adult population of the Emirates of Sharjah. Aim: To assess the prevalence of SLT consumption and its effects on gingival and periodontal health in the adult population of the Emirates of Sharjah. Methods: The study evaluated 171 dentate patients aged 18–77 years who use SLT or are nonsmokers. Data were collected through a questionnaire on SLT use and periodontal health assessed using plaque index, gingival index (GI), attachment score, and gingival recession (GR). Statistical analysis was done using SPSS 27.0 version. Results: Among 390 screened participants, 28 subjects (21 males and 7 females) were SLT users with prevalence of 7.18%. No significant differences were found in plaque index, GI, or periodontal pocket depth. However, SLT users had significantly higher clinical attachment loss scores (mean 4.01 mm, SD 0.35) compared to non-users (mean 1.49 mm, SD 1.12). Significant differences were also observed in GR. Conclusions: This study provides insights into the prevalence and impact of SLT use on periodontal and gingival health in UAE adults. SLT usage is associated with a higher risk of periodontitis and gingivitis, indicating the need for awareness and intervention. Further research is required to validate results and consider confounding factors.

Integration of a tobacco cessation program into a rural community-based maternal and child health program in India: A stakeholders' perspective on task shifting.

According to the Global Adult Tobacco Survey-2, India, 7.5% of pregnant women are tobacco users with a high prevalence of smokeless tobacco use in rural India. Although pregnant women may receive advice to quit tobacco, lack of knowledge on providing cessation support among healthcare workers results in missed opportunities. Community Health Workers (CHWs) play a significant role in maternal and child health (MCH) programs. Thus, task-shifting for providing cessation support by CHWs was planned and the perceptions and attitudes of concerned stakeholders were explored. A pre-implementation qualitative study was conducted in four states of India within existing rural, community-based MCH program settings. Implementation research frameworks were used to develop data collection tools and for inductive and deductive thematic analysis. In-depth interviews were conducted with stakeholders (n=28) like coordinators, pregnant women and village functionaries of the government health system. Four focus groups were conducted with female CHWs (n=24). Stakeholders intended to adopt the intervention as objectives of the cessation intervention were aligned with the aims of the MCH program. CHWs related to their role in task-shifting and understood the context for implementing the intervention within the MCH program. Pregnant women expressed openness to receiving cessation support from CHWs acting as a facilitator for task-shifting. Barriers anticipated were the additional workload and time required for CHWs to implement the intervention. Task-shifting to female CHWs for screening tobacco users, providing brief advice and cessation support within the MCH program was perceived to be acceptable, adoptable and feasible. The study builds insight into the process of developing a grounded approach for the integration of tobacco cessation intervention into a rural, community-based antenatal care setting by task shifting to female community health workers for providing cessation support to pregnant women. The study fills gaps in the literature related to establishing tobacco cessation interventions for pregnant women. The delineated efforts in integration of the intervention and task shifting can be replicated in other developing countries, especially in rural communities within South Asian and Southeast Asian regions having cultural practices, community-based healthcare structures and tobacco consumption patterns that are comparable to India.

Survey of the present health & nutritional status of Shompen tribe of Great Nicobar Island.

Shompens are one of the two mongoloid tribes of Nicobar district. There is little information about their recent health status since the last survey which was conducted in 1998. Hence, a comprehensive health and nutritional survey was conducted in March 2017 to assess the changes. The survey was carried out by a joint team of various organizations including the ICMR-Regional Medical Research Centre and Tribal Welfare and Health Department both located in Port Blair. A detailed health and nutrition survey of the Shompen community was planned by deputing a field research team. The survey included demographic data, anthropometric data, clinical examination, screening for the markers of infectious diseases, respiratory pathogens, tuberculosis and haemoglobinopathies. About half of the Shompen adults (both males and females) had a body mass index (BMI) of ≥23. However, Shompen children had a good nutritional status with no child suffering from undernutrition. As per BMI for age, none of the children <5 yr were under-nourished, while in the 5-17 yr group, 12 per cent of children were undernourished. Anaemia prevalence was about 48.3 per cent, with 54 per cent prevalence in females and 43.8 per cent in males. Fungal infection of the skin, acute respiratory infection and abdominal pain were the common morbidities observed. None had active pulmonary tuberculosis. Of 38 Shompens screened for IgG (immunoglobulin G) antibodies, 42.1 and 18.4 per cent were positive for measles and rubella, respectively. Seroprevalence of Leptospira was 35.5 per cent. The prevalence of hypertension was 13.2 per cent, whereas another 28.9 per cent were pre-hypertensive. The population structure of the Shompen is not skewed and under nutrition was not widely prevalent among the children of <5 yr. The other positive observations were the absence of malaria, filariasis and dengue. However, there was natural infection of measles and rubella. Fungal skin infection and intestinal parasitic infestations were widely prevalent. Although cardiovascular risk profile was low, there were signs of emerging risk of over-weight, hypertension and dyslipidaemia. These together with the high prevalence of smokeless tobacco use may have a serious effect on the cardiovascular disease susceptibility of the Shompen population in the future.

Effect of Tobacco Use during Pregnancy on Fetal Birth Weight Born to Women between 18-35 years in Thatta District

Background: Consumption of tobacco in its various forms is widespread and a serious public health issue globally. Although smoking is the predominant common method of tobacco use, the consumption of smokeless tobacco has increased in recent decades. Smokeless tobacco products are becoming more popular among women. In Pakistan, the overall prevalence of smokeless tobacco among males and females is 7%, out of which 10% are women which may be linked to poor reproductive outcomes and other health issues. Objective: The purpose of the study was to determine the effect of smokeless tobacco use during pregnancy on fetal birth weight. Methods: A case-control study was conducted at the five basic health units (BHU) of Thatta District, which were Garho, Ghora Bari, Dhabeji, Chattochand, and Jhimpeer from October 2022 – January 2023. A total of 300 mothers were included by consecutive sampling technique in the study and among them, 150 mothers who gave birth to a low-birth-weight baby i.e., birth weight &lt; 2.5 kg were enrolled as a case, and another 150 mothers who gave birth to a normal birth weight baby i.e., birth weight ≥ 2.5 kg were enrolled as a control. Data collection involved face-to-face interviews utilizing a validated questionnaire, with strict adherence to ethical considerations throughout the study. Results: In a study of 300 participants from Thatta District's five basic healthcare units, multivariate logistic regression revealed significant factors influencing tobacco use during pregnancy. Housewives had 1.862 times higher odds of tobacco use than employed individuals, and individuals aged 20–35 had 1.802 times higher odds than those aged 36-50. Smokeless tobacco, particularly most of the mothers in this study used gutka (47.3%) and chaliya (26%). Smokeless tobacco Gutka and Chaliya, increased the likelihood of tobacco use during pregnancy. Considering the frequency of smokeless tobacco use and healthcare provider recommendations emerged as important determinants. Conclusion: Our study underscores the prevalence of smokeless tobacco use during pregnancy in Thatta, Karachi, Pakistan, with significant implications for low-birth-weight babies. This highlights the need for targeted public health interventions, like antenatal care, alongside further research to inform evidence-based strategies for maternal and child health promotion in the region.

Awareness of Oral Cancer Among Users of Smokeless Tobacco: A Cross-Sectional Study.

Smokeless tobacco (SLT) stands out for its higher nicotine absorption and its role in preventable fatalities. The Global Adult Tobacco survey in Saudi Arabia revealed SLT usage, while past legislation restricted its use. Linking SLT consumption to oral cancer and oral mucosal ulcers, the study addresses its prevalence in head and neck malignancies. This study is cross-sectional and includes adult users of SLT. Raosoft (Raosoft Inc., Seattle, WA) was used to calculate the sample size. The data was analyzed using SPSS software (IBM Corp., Armonk, NY). The research study investigated various sociodemographic characteristics and prevalence of SLTuse among participants. All participants reported using SLT, with toombak (33.2%) and shamma(36.0%) being the most prevalent. Notably, reasons for initiating SLT included influence from peer pressure (33.6%), alternatives to smoking (32.0%), and influence from relatives (19.0%). While 75.1% intended to quit within a year, awareness of SLT's harmfulness varied: 40.3% believed it was less harmful than smoking, and 57.7% recognized its link to oral cancer. Additionally, 62.2% believed SLT could lead to dependence. Sociodemographic factors generally did not significantly affect awareness of SLT causing oral cancer. The findings indicate a significant prevalence of SLT use, with toombak and shammabeing the most common types consumed. Awareness of the potential harm of SLT use in relation to oral cancer varied among participants, with a notable proportion misunderstanding its harmfulness compared to smoking tobacco.

Heterogeneity of Harmful Constituent Profiles in Smokeless Tobacco Products from Five African Countries.

Addictive, toxic, and carcinogenic constituents present in smokeless tobacco (SLT) products are responsible for the harmful effects associated with SLT use. There are limited data on levels of such constituents in SLT products used in Africa, a region with high prevalence of SLT use and the associated morbidity and mortality. Manufactured and custom-made SLT products were purchased from five African countries (South Africa, Uganda, Mauritania, Nigeria, and Zambia) using a standard approach for sample collection, labeling, and storage. Moisture content, pH, total and unprotonated (biologically available) nicotine, five tobacco-specific N-nitrosamines (TSNA), 10 polycyclic aromatic hydrocarbons (PAH), five metals and metalloids (As, Cd, Cr, Ni, and Pb), nitrate, and nitrite were analyzed. A total of 54 samples representing 15 varieties of manufactured SLT products and 13 varieties of custom-made SLT products were purchased and analyzed. In all samples, the total nicotine ranged from 1.6 to 20.5 mg/g product and unprotonated nicotine accounted for 5.3-99.6% of the total nicotine content. The sum of all five TSNA ranged from 1.6 to 100 μg/g product, with significant within-country variations observed across both the manufactured and custom-made varieties. Significant variations were also found for PAH, metals and metalloids, nitrates, and nitrites. This is the most comprehensive report on the chemical profiling of products from African countries. This is also the first study illustrating the variability of harmful constituents within the same types and brands of African SLT. Our findings emphasize the need for consumer education and interventions to reduce SLT use in Africa. The data reported here can be useful to regulators in considering measures to prevent the occurrence of high levels of known toxicants and carcinogens in manufactured products.

The hidden menace of smokeless tobacco in Pakistan: understanding the risks and possible solutions; a letter to the editor

The hidden menace of smokeless tobacco in Pakistan: understanding the risks and possible solutions; a letter to the editor

Comparing Smokeless Tobacco Use between Male-to-Female and Female-to-Male Transgender Adults in the United States

Background: The shifted gender social norms and tobacco cessation advice associated with estrogen therapy as a result of thrombosis risk could be responsible for the tobacco use differences between Male-to-Female (MTF) and Female-to-Male (FTM) transgender adults. Research has established this disparity in cigarette smoking, but none has looked at smokeless tobacco. Aim: This study aimed to compare smokeless tobacco use MTF and FTM transgender adults in the United States. Furthermore, it assessed the other potential determinants of smokeless tobacco use among the transgender population. Methods: The study analyzed data from the 2021 Behavioral Risk Factor Surveillance System (BRFSS), which included 1,070 transgender individuals aged 18 and above (382 MTF and 688 FTM). Gender identity (MTF vs. FTM) was used to predict smokeless tobacco use using logistic regression, adjusting for other socio-demographic and behavioral determinants. Results: The prevalence of smokeless tobacco use among the transgender population was 5.7%, 3.8% among MTF, 6.3% among FTM, and 6.7% among gender non-conforming transgender individuals. FTM transgender individuals were 2.23 times more likely to use smokeless tobacco than MTF transgender individuals. Smokeless tobacco use among MTF and FTM transgender individuals was also significantly associated with being older than 54 years (OR = 1.94), having a high school education or lower (OR = 1.98), living with at least a child (OR = 2.17), a current smoker (OR = 1.78) and a current e-cigarette user (OR = 2.97). Discussion: This study found a significant difference in smokeless tobacco use among transgender subgroups and addressed a critical tobacco knowledge gap among this population.

The global impact of tobacco control policies on smokeless tobacco use: a systematic review

Smokeless tobacco, used by more than 300 million people globally, results in substantial morbidity and mortality. For smokeless tobacco control, many countries have adopted policies beyond the WHO Framework Convention on Tobacco Control, which has been instrumental in reducing smoking prevalence. The impact of these policies (within and outside the Framework Convention on Tobacco Control) on smokeless tobacco use remains unclear. We aimed to systematically review policies that are relevant to smokeless tobacco and its context and investigate their impact on smokeless tobacco use. In this systematic review, we searched 11 electronic databases and grey literature between Jan 1, 2005, and Sept 20, 2021, in English and key south Asian languages, to summarise smokeless tobacco policies and their impact. Inclusion criteria were all types of studies on smokeless tobacco users that mentioned any smokeless tobacco relevant policies since 2005, except systematic reviews. Policies issued by organisations or private institutions were excluded as well as studies on e-cigarettes and Electronic Nicotine Delivery System except where harm reduction or switching were evaluated as a tobacco cessation strategy. Two reviewers independently screened articles, and data were extracted after standardisation. Quality of studies was appraised using the Effective Public Health Practice Project's Quality Assessment Tool. Outcomes for impact assessment included smokeless tobacco prevalence, uptake, cessation, and health effects. Due to substantial heterogeneity in the descriptions of policies and outcomes, data were descriptively and narratively synthesised. This systematic review was registered in PROSPERO (CRD42020191946). 14 317 records were identified, of which 252 eligible studies were included as describing smokeless tobacco policies. 57 countries had policies targeting smokeless tobacco, of which 17 had policies outside the Framework Convention on Tobacco Control for smokeless tobacco (eg, spitting bans). 18 studies evaluated the impact, which were of variable quality (six strong, seven moderate, and five weak) and reported mainly on prevalence of smokeless tobacco use. The body of work evaluating policy initiatives based on the Framework Convention on Tobacco Control found that these initiatives were associated with reductions in smokeless tobacco prevalence of between 4·4% and 30·3% for taxation and 22·2% and 70·9% for multifaceted policies. Two studies evaluating the non-Framework policy of sales bans reported significant reductions in smokeless tobacco sale (6·4%) and use (combined sex 17·6%); one study, however, reported an increased trend in smokeless tobacco use in the youth after a total sales ban, likely due to cross-border smuggling. The one study reporting on cessation found a 13·3% increase in quit attempts in individuals exposed (47·5%) to Framework Convention on Tobacco Control policy: education, communication, training, and public awareness, compared with non-exposed (34·2%). Many countries have implemented smokeless tobacco control policies, including those that extend beyond the Framework Convention on Tobacco Control. The available evidence suggests that taxation and multifaceted policy initiatives are associated with meaningful reductions in smokeless tobacco use. UK National Institute for Health Research.

Smokeless tobacco utilization among tribal communities in India: A population-based cross-sectional analysis of the Global Adult Tobacco Survey, 2016-2017.

Evidence on smokeless tobacco use is scarce among indigenous communities, with the available literature based either on a specific tribe or on a particular region. Therefore, we aimed to estimate the prevalence of smokeless tobacco and assess its correlation among tribal communities in India. We utilized data from the Global Adult Tobacco Survey-2 conducted in 2016-2017. A total of 12,854 tribal people aged >15 years were included in this study. The utilization of smokeless tobacco was estimated using the weighted proportion, and its correlates were assessed by multivariable logistic regression reported as an adjusted odds ratio (AOR) with a 95% confidence interval. The prevalence of smokeless tobacco use was 32%. Participants aged 31-45 years [AOR: 1.66 (1.37-2.00)], who were men [AOR: 2.37 (1.94-1.90)], and who were daily wage/casual laborers [AOR: 5.32 (3.39-8.34)] were observed to have a significant association with smokeless tobacco. Willingness and attempt to quit smokeless tobacco were higher in Eastern India (31.2%) and central India (33.6%), respectively. We observed one-third of the tribal individuals used smokeless tobacco in India. Tobacco control policies should prioritize men, rural residents, and individuals with fewer years of schooling. Culturally appropriate and linguistically tailored messages are required for behavioral change communication.

Prevalence of smokeless tobacco use in India and its association with various occupations: A LASI study.

More than two-thirds of deaths in developing countries are due to non-communicable diseases, and tobacco is a leading risk factor. There are numerous different socio-demographic factors that impact on the use of smokeless tobacco, of which occupation is one. The objectives of this study are to find out the overall prevalence of smokeless tobacco use (ever and current use), the pattern of association with various occupations and related variables (current and past workers), and the role of childhood adversity on initiation and use. This study used data from the Longitudinal Aging Study in India (LASI) wave 1, a nationally representative cross-sectional study collected in 2017-18. Current and previous users of smokeless tobacco are taken into consideration as the target population. For the data analysis, survey-weighted tools have been applied for descriptive statistics and multivariable logistic regression model. The weighted data analysis has been done using R studio with R version 4. From the sample size of 65,561, 38% have used either smoking or smokeless tobacco. Among them, 40% use tobacco in smoke form, 51% use smokeless tobacco, and 9% take both. At the population level, 22.8 and 20.4% are previous and current users of smokeless tobacco, respectively. Type of occupation, type of employer, place of work, kind of business, and workload were found to be significantly associated with smokeless tobacco use. A deaddiction and tobacco quitting policy targeting rural male informal workers should be the focus of the Government.

Qualitative analysis to identify determinants of use among different occupational settings and channels of communication to address smokeless tobacco use in Sri Lanka.

Smokeless tobacco (SLT) use is a leading cause for oral and pharyngeal cancers in the Southeast Asian region which leads to considerable morbidity and mortality. This study aims to Identify the determinants of use and channels of communication to address smokeless tobacco use among specific user groups in Sri Lanka. The study uses a qualitative approach with purposive, snowballing sampling among groups. Specific high-risk demographic and occupational groups that are known to have high prevalence of SLT use were identified in five of the 25 administrative districts of Sri Lanka, were approached. Sixty-two in-depth interviews and 10 focus group discussions were carried out among different occupational groups in five districts. Thematic analysis coding each reported determinants and communication methods was carried out. Users of SLT of different groups revealed different determinants of use. Some of the determinants were common to several groups. When investigated the preferred methods to address SLT, it is found that the media use was also different among these groups. All preferred group level awareness programmes to individual level awareness programmes. Most groups watch specific television channels at specific times of the day. Most groups stated that they accepted the messages of religious leaders and cancer victim groups. Radio and newspapers were used rarely by these groups that were studied. Smart phones were used only by urban youth and others used basic mobile phones only for calling. Different risk groups were identified allowing preparation of an overall communication approach to address use of SLT. The findings here Identify determinants of use and the communication approaches that can be used to prepare an effective communication strategy to address SLT use among different and sometimes hidden groups in resource poor settings in low a middle-income country.

Trends in smokeless tobacco use and attributable mortality and morbidity in the South-East Asia Region: implications for policy

ObjectivesTo describe the prevalence of smokeless tobacco (SLT) use and number of users by year, in addition to trends in mortality and attributable disease burden in countries of the WHO...

Tobacco chewing and associated factors among a vulnerable youth population in Sri Lanka

BackgroundTobacco in any form kills millions of people every year. Tobacco addiction among youth shows an increasing trend while smokeless type is becoming more common. This study aimed to describe the lifestyle of chewing smokeless tobacco among a group of high-risk youth population in Sri Lanka.MethodsA descriptive cross-sectional study was conducted among a sample of 1431 youths aged between 15 to 24 years residing in urban slums in Colombo Sri Lanka, using a cluster sampling technique combined with probability proportionate to size technique. Data were collected using an interviewer-administered questionnaire. Chewing smokeless tobacco was assessed using betel quid chewing and commercially prepared tobacco and areca nut packet chewing. Current chewer was defined as who had the practice of chewing during past 30 days.ResultsThe mean age of the study sample was 17.53 (95% CI: 17.40–17.65). Of the 1431 respondents, 57% were males and 43% were females. The prevalence of current smokeless tobacco chewers was 44.9% and among them 90.8% were males and 9.8% were females. Around 31.3% did not have smokeless tobacco chewing practice (Male-5.9%, Female-64.9%). Among the current smokeless tobacco chewers 21.5% chew both types of smokeless tobacco products and all of them were males. Male gender (OR 17.9; 11.4 -27.9) and ever smoking lifestyle (OR 4.4; 2.9–6.6) were significant determinants of current smokeless tobacco chewing lifestyle.Conclusion and recommendationsThe study shows a high prevalence of smokeless tobacco use by youth aged between 15 to 24 years who were residing in urban slum areas in the district of Colombo, in Sri Lanka, highlighting this target group for early intervention to reduce the uptake and promote the quitting of this practice.

Prevalence and trend of smokeless tobacco use and its associated factors among adolescents aged 12–16 years in 138 countries/territories, 1999–2019

BackgroundSmokeless tobacco use is popular in some regions worldwide, but it receives less attention compared to cigarette smoking. We aimed to estimate the recent prevalence of, and trends in, smokeless tobacco use and to examine its associated factors among adolescents aged 12–16 years in 138 countries/territories (hereafter “countries”) from 1999 to 2019.MethodsData from the Global Youth Tobacco Survey conducted in 138 countries in 2010–2019 and the National Youth Tobacco Survey conducted in the United States in 2019 were used to calculate the prevalence of current smokeless tobacco use and investigate its associated factors among adolescents aged 12–16 years. We also assessed the trend in the prevalence of smokeless tobacco use in 100 countries that had conducted more than one survey from 1999 to 2019.ResultsThe overall prevalence of current smokeless tobacco use was 4.4% (95% confidence interval [CI] 4.0–4.9), with 5.7% (5.1–6.3) for boys, 3.1% (2.6–3.5) for girls, 3.9% (3.5–4.4) for adolescents aged 12–14 years and 5.4% (4.8–5.9) for those aged 15–16 years. The prevalence was highest in the South-East Asian region (6.1%, 4.4–7.7) and lowest in the Western Pacific region (2.0%, 1.7–2.4). The prevalence of smokeless tobacco use decreased in 57 of 100 countries, increased in 32 countries, and remained unchanged in 11 countries. Current cigarette smoking (odds ratio [OR]=2.00, 95% CI=1.68–2.39), other tobacco product use (OR=6.03, 95% CI=4.92–7.40), tobacco advertisement exposure (OR=1.44, 95% CI=1.19–1.74), being offered free tobacco products (OR=2.01, 95% CI=1.66–2.42), and not being taught about dangers of smoking (OR=1.28, 95% CI=1.09–1.50) were all positively associated with current smokeless tobacco use.ConclusionsSmokeless tobacco use among adolescents remains a public health concern worldwide. Although the prevalence among adolescents decreased in most countries, it remains high especially in the South-East Asian region. More strict and effective strategies and measures are needed to further curb the smokeless tobacco use among adolescents.

Disparities in Cigarette, E-cigarette, Cigar, and Smokeless Tobacco Use at the Intersection of Multiple Social Identities in the US Adult Population. Results From the Tobacco Use Supplement to the Current Population Survey 2018-2019 Survey.

Sociodemographic disparities in tobacco use are prevalent and persistent in the United States. Nevertheless, few studies have examined disparities in tobacco use from an intersectionality perspective. We developed a visualization tool to identify disparities in cigarette, e-cigarette, cigar, and smokeless tobacco use at the intersection of multiple social identities. We used the 2018-2019 Tobacco Use Supplement to the Current Population Survey (TUS-CPS) to estimate the prevalence of tobacco product use at the intersection of age (18-34, 35-54, ≥55 years), sex (male, female), race/ethnicity (Non-Hispanic [NH] White, NH Black, Hispanic, NH Other), and annual household income (<$50 000, $50 000-$99 999, and ≥$100 000). Estimates accounted for the complex survey design. For cigarettes, the most defining characteristic was income, with the highest prevalence among low-income NH White male adults aged 35-54 years (30.7%) and low-income NH White female adults aged 35-54 years (29.7%). For e-cigarettes, the most defining characteristic was age, with adults 18-34 years old having the highest prevalence. High prevalence groups for cigars included young- and middle-aged NH Black and NH White males, while NH White males had the highest prevalence of smokeless tobacco use. Our intersectionality visualization tool is helpful to uncover complex patterns of tobacco use, facilitating the identification of high-risk groups. We created a visualization tool to identify disparities in cigarette, e-cigarette, cigar, and smokeless tobacco use at the intersection of age, sex, race/ethnicity, and income. Our visualization tool helps uncover complex patterns of tobacco use, facilitating the identification of high-risk population groups that would otherwise be masked. These results can be used to implement tobacco control policies targeted at factors that promote or sustain tobacco use disparities.

Prevalence of smoking and smokeless tobacco use during breastfeeding: A cross-sectional secondary data analysis based on 0.32 million sample women in 78 low-income and middle-income countries.

SummaryBackgroundSmoking and smokeless tobacco use during the postpartum period is well studied in high-income countries, whereas low-income and middle-income countries (LMICs) lack evidence.MethodsIn this cross-sectional study we used data from the Demographic and Health Surveys (DHS) and Multiple Indicator Cluster Surveys (MICS) conducted in 78 LMICs between January 2010 and December 2019 to study tobacco use among 0.32 million sample lactating women. Age-standardized prevalence of smoking and smokeless tobacco use was estimated and presented with a 95% Confidence Interval (CI) for 78 LMICs. Pooled estimates overall and by WHO regions were obtained using random-effects meta-analyses. Country-level and community-level variance to understand contextual factors was also quantified using multilevel modelling.FindingsPooled prevalence of any tobacco use among breastfeeding women in LMICs was 3.61% (95% CI 3.53–3.70); with the lowest prevalence in regions of the Americas (1.44%, 1.26–1.63) and the highest in the Southeast Asia region (6.13%, 6.0–6.27). The pooled prevalence of tobacco smoking was reported to be 1.16% (1.11–1.21), with the highest prevalence in the Eastern Mediterranean region (4.27%, 3.88–4.67) and the lowest in the African region (0.81%, 0.76–0.86). The pooled prevalence of smokeless tobacco use was reported to be 2.56% (2.49–2.63), with the highest prevalence in the Southeast Asia region (4.92%, 4.80–5.04). Illiterate and poor women in LMICs bore the enormous burden of tobacco use.InterpretationThe prevalence of smoking and smokeless tobacco use among lactating women in LMICs varied considerably across different WHO regions. Considering the cross-sectional design of the study, caution is required while interpreting the results. To improve mothers' and children's health and nutrition outcomes and reduce health inequalities in LMICs, reducing tobacco use through evidence-based interventions is critical.FundingNone.

Tobacco Use and Its Determinants among School Going Adolescents

BACKGROUND&#x0D; Tobacco use is a serious public health problem worldwide and it is the largest preventable risk factor for non-communicable diseases, also acting as a significant hurdle to development gains worldwide. Tobacco use among adolescents is increasing in epidemic proportions and this has profound public health implications. Although the single baseline measure of tobacco use in adolescence is unlikely to capture the lifetime risk of diseases, the prevalence of current tobacco use among adolescents is an important predictor of the future burden of tobacco-related diseases. Due to the enormous psychosocial and health effects of tobacco on childhood and adolescence, it is important to understand its burden and its associated socio-demographic factors for formulating effective tobacco control measures in adolescents. We wanted to estimate the prevalence of tobacco use among adolescents and determine the factors associated with tobacco use among adolescents in higher secondary schools in Ambalappuzha Block, Kerala.&#x0D; METHODS&#x0D; A school-based cross-sectional study was conducted among adolescents in higher secondary schools in a block panchayat area in Kerala using a self-administered semi-structured questionnaire. The use of tobacco was explored using the global school-based student health survey questionnaire (GSHS) and the associated factors were analysed using the chi-square test.&#x0D; RESULTS&#x0D; The prevalence of tobacco use which was categorised as ever users of tobacco was 13 % and the prevalence of smokeless tobacco use was 15.9 % among the study participants. A significant association was found between age, year of study, smoking status of parents, feeling of inability to study, poor academic grades and lack of confidence to face exams and tobacco use.&#x0D; CONCLUSIONS&#x0D; Tobacco use is an important risk behaviour among adolescent students. Risk behaviours can be made less damaging if addressed early in life and schools play an important role in addressing this public health problem by promoting healthy behaviours and lifestyles in adolescents.

Smokeless tobacco use and reproductive outcomes among women: a systematic review

Background: Both smoked and smokeless tobacco use have deleterious effects on most major organ systems including the reproductive system. We conducted a systematic review on smokeless tobacco (SLT) use and reproductive outcomes among women. Methods: We searched Pubmed, ProQuest, Cochrane, Wiley and Emerald databases for studies involving smokeless tobacco use in women with any or a combination of three conditions: infertility, menstrual disorders and pelvic inflammatory disease (PID). Eligibility criteria included English language publications from 1st January 1990 - 31st October 2020. CADIMA software used for filtering the studies and modified SIGN checklist for the quality assessment. The findings are reported as per the PRISMA guidelines. The AXIS and ROBIN E tool were used for assessment of risk of bias. Results: In total, three studies addressed our research question. Two studies addressed infertility (prospective cohort: n=501, cross sectional: n=192) of which, the cross-sectional study compared the mean cotinine levels between those with infertility, menstrual disorders and PID. This study also explored the association between SLT and PID. PID was the most common gynecological complaint. Women with PID had significantly higher urinary cotinine levels = 24.95±12.259) ng/ ml (p=0.0144). Mean urinary cotinine in women with menstrual complaints was 19.32±10.29 ng/ml. The other study used population-based sampling of 501 couples who attempted pregnancy (enrolled in the LIFE Study). Results showed that 9% and 2% (n=28) of men used snuff and chewed tobacco respectively. and few of the women used smokeless tobacco. Time to pregnancy was shorter among smokeless tobacco users relative to smokers. Conclusions: Available studies exploring associations between SLT and reproductive outcomes are inconclusive due to limitations in the study methodologies. More studies with robust study designs are required from low- and middle-income countries with high prevalence of SLT use.

Association between Smokeless Tobacco Use and Waterpipe Smoking and the Risk of Lung Cancer: A Systematic Review and Meta-Analysis of Current Epidemiological Evidence.

Background:Smokeless tobacco and waterpipes are used by hundreds of millions of people worldwide and consumption rates exceed that of cigarette smoking in much of South East Asia and parts of the Middle East. However, the cancer risks of these methods of tobacco consumption are less well-characterized than those of cigarette smoking. The objective of this study was to systematically review the epidemiological evidence on the association between smokeless tobacco use and waterpipe smoking and lung cancer risk. Methods:The MEDLINE, EMBASE, Web of Science and OpenSIGLE databases were searched to identify eligible case-control and cohort studies (published before 1st December 2020 in any language) that adjusted for cigarette smoking or included non-cigarette smokers only. Summary odds ratio/relative risk estimates and confidence intervals were extracted, and pooled risk ratios (RRs) for lung cancer were calculated using random effects meta-analysis. Results:The literature search identified 2,465 publications: of these, 26 studies including 6,903 lung cancer patients were included in the synthesis (20 studies of smokeless tobacco use, five of waterpipe smoking, one of both). Our results suggest that smokeless tobacco use is associated with an increased risk of lung cancer among non-cigarette smokers, and that betel quid tobacco may be particularly hazardous. The random effects meta-analysis showed that exclusive use of any type of smokeless tobacco (pooled RR = 1.53, 95%CI 1.09 – 2.14), betel quid chewing (pooled RR = 1.77, 95%CI 1.06 – 2.95), and waterpipe smoking (pooled RR = 3.25, 95%CI 2.01 – 5.25) were significantly associated with an increased risk of lung cancer. Conclusions:This meta-analysis of case-control/cohort studies supports the hypothesis that use of smokeless tobacco and waterpipe smoking is associated with increased risk of developing lung cancer. Considering the widespread and increasing use of smokeless tobacco in developing countries, and increasing prevalence of waterpipe smoking in almost all societies, these findings inform formulation of public health policy, legislation and tobacco control measures at national and international level to increase awareness and decrease the prevalence of smokeless tobacco use and waterpipe smoking.