How effective are pictorial warnings on tobacco products? New evidence on smoking behaviour using Australian panel data

From non-adherence to adherence: Can innovative solutions resolve a longstanding problem?

Non-adherence to medication is a longstanding problem, profoundly affecting patient outcomes and sustainability of healthcare systems. Historically, non-adherence has been observed since the time of Hippocrates, however, when potent drugs became available in the midst of the 20th century, it became a pivotal concern. Despite numerous studies and interventions designed, medication adherence rates remain suboptimal, currently reaching about 50 % still, as described in WHO report two decades ago. What is worse, many healthcare professionals feel neither responsible nor able to change it. Enhancing adherence requires in-depth understanding of the concept, as many intuitive approaches fail to work. For example, contrary to expectations, patient education alone proves insufficient when addressing this issue. Both behavioural models and recent experience reflecting low acceptance of COVID-19 vaccinations strongly suggest that patients' decisions are driven by emotions, which often results in intentional non-adherence. Several technical innovations, such as smart inhalers and electronic pill dispensers, offer potential solutions. However, their effectiveness varies, and standardized certification procedures are lacking. Altogether, technical solutions do not eliminate the problem entirely. To move forward, social and health system innovation is equally needed. Multiple stakeholders could benefit from improved adherence, therefore their greater involvement is advisable to create an adherence-supporting environment. In conclusion, despite available evidence-based interventions, non-adherence remains a complex challenge. Technical and social innovations, combined with a shift in policy priorities, could lead to improved medication adherence and better patient outcomes. The global tide of non-communicable chronic conditions, and aging of societies urges us to take this problem seriously.

Healthy, nudged, and wise: Experimental evidence on the role of information salience in reducing tobacco intake

We evaluate the performance of two behavioral interventions aimed at reducing tobacco consumption in an ultra-poor rural region of Bangladesh, where conventional methods like taxes and warning labels are infeasible. The first intervention asked participants to daily log their tobacco consumption expenditure. The second intervention placed two graphic posters with warnings about the harmful effects of tobacco consumption on tobacco users and their children in the sleeping quarters of the participating households. While both interventions reduced household tobacco consumption expenditure, male participants who logged their expenditure substituted cigarettes with cheaper smokeless tobacco. The reduction in tobacco intake is larger among males with a non-tobacco consuming spouse. Exploratory analysis reveals that risk-averse males who spent relatively more on tobacco responded more to the logbook intervention. More educated, patient males with children below age five responded better to the poster intervention. The findings suggest that in countries with multi-tiered tobacco excise tax structures, which incentivize downward substitution, extending complementary demand-side policies that worked elsewhere to the rural poor might be unwise. Instead, policies may leverage something as universal as parental concern for their children's health to promote better health decision-making.

Why are anti-smoking health-information interventions less effective among low-socioeconomic status groups? A systematic scoping review

ISSUES

This paper identifies and synthesises explanations proposed in the literature for the (in)effectiveness of institutional anti-smoking health-information interventions (HII) among low-socioeconomic status (SES) adults in high-income countries.

APPROACH

We searched eight databases for relevant papers from various disciplines: Studies published in English since 2009, on the effectiveness among low-SES adults of anti-smoking HIIs, aimed at changing knowledge/behaviour, and conducted by official institutions, were included. Through a scoping review, we synthesised: study design, SES indicator, intervention type, intervention source, study population, outcomes, low-SES effects, equity effects, proposed explanations and whether these were studied empirically.

KEY FINDINGS

Thirty-eight studies were included in this scoping review. Seventeen suggested explanations for the (in)effectiveness of the HIIs in low-SES adults, but only nine assessed them empirically. Thematic analysis yielded six themes: message engagement, material conditions, cognition, risk perception, social environment and self-efficacy.

IMPLICATIONS

Explanations for intervention results are not always present, and empirical evidence for explanations is often not provided. Including such explanations and testing their empirical merits in future research can provide the crucial information needed for developing more effective anti-smoking HIIs for low-SES adults.

CONCLUSIONS

To our knowledge, this is the first review to explore the explanations proposed for why anti-smoking HIIs are (in)effective among low-SES adults. It contains insights for future studies aiming to provide empirical evidence on the causes of this (in)effectiveness, and concludes that such research is yet largely missing, but crucial to the quest for more effective and equitable anti-smoking interventions.

Effects of Pictorial Health Warnings on Cognitive, Affective, and Smoking Behavior: A Mixed Methods Study in Four Cities in Indonesia

While studies have shown the importance of pictorial health warnings (PHW) as a tobacco control strategy, empirical evidence on the efficacy of PHW in prompting smoking behavior remains inconclusive. The study aimed to examine the association between PHW and cognitive reactions, emotional/affective reactions, and smoking behavior. We conducted a mixed-methods study, which included a cross-sectional face-to-face survey of 401 smokers in four cities (Jakarta, Bandung, Semarang, and Yogyakarta) and three focus group discussions among 24 participants in Jakarta. We applied multiple logit regression in STATA for quantitative data analysis and explanatory sequential design for qualitative data analysis. Quantitatively, we found high (63-84% of respondents) understanding about PHW objectives (cognitive reactions), including to remind health risks and encourage smoking cessation. With only 40% PHW, we found relatively low (32%-39%) negative emotional reactions, including feeling scared, annoyed and disgusted and relatively low proportions (33-40%) of respondents that reported quit attempt. Consistent with the quantitative findings, qualitative data provided contexts, including in explaining that the professional worker group was the least affected by PHW, while the student and non-professional groups were the most vulnerable. All this is supportive of governments in Indonesia and other countries to increase the PHW size.

The duration effect of pictorial health warnings on tobacco consumption in Mexico

Pictorial health warnings (PHW) were introduced in Mexico by the end of 2010. Different studies have assessed how PHW influence attitude or desire to renounce smoking, but they have not studied the actual effect on the demand of tobacco products. Our objective in this paper is to analyze the effect of duration of pictorial health warnings on consumption of tobacco in Mexico. We assess the influence of different consecutive rounds of pictorial warnings, taking into account their length and the use of repeated images. We use a Dynamic Least Squares model (DOLS) with quarterly data (1994-2015), to estimate the long run demand of cigarettes in Mexico, as a function of per-capita income, the relative price of tobacco, different regulatory measures and the different rounds of pictograms, its duration, and the use of repeated images. We find evidence indicating that the pictorial health warnings have reduced consumption of cigarettes, that the effect has decreased in the last rounds, and that the most effective duration of the rounds is six months. PHW regulation deters consumption; however, its effectiveness decreases over time, suggesting that consumers tend to adapt to images.

Tobacco control and household tobacco consumption: A tale of two educational groups

Since the ratification of the World Health Organization Framework Convention on Tobacco Control in 2004, Pakistan has made modest but continued progress in implementing various tobacco control measures. By 2014, substantial progress was achieved in areas of monitoring, mass media antitobacco campaigns, and advertising bans. However, the findings from the 2014 Global Adult Tobacco Survey of Pakistan show significant differences in antitobacco campaign exposure among individuals of different educational attainment. Given this large variation in noticing antitobacco information, this paper analyzes how heterogeneity in treatment exposure may differentially impact tobacco-use prevalence across household groups. Household-level tobacco-use prevalence in 2014 was, respectively, 56% and 48% for the low- and high-education households. The gap in tobacco-use prevalence between the two educational groups further widens post 2014. We find that, on average, individuals with higher than primary education are 14 percentage points and 6 percentage points more likely to notice anticigarette and antismokeless tobacco information in 2014, respectively. Subsequently, in 2016, high-education households experienced a 3.6 percentage point higher reduction in tobacco-use prevalence compared to the low-education households. These findings motivate policies to enhance the outreach of tobacco control measures across different educational groups.