Healthcare costs attributable to secondhand smoke exposure among Indian adults

A Quantitative Exploration of the Influence of Tobacco Use on Poverty in India

INTRODUCTION

Tobacco use has a disproportionate impact on lower socioeconomic groups in India. The study quantifies the number of people who would fall under the national poverty line if the direct spending on tobacco and healthcare expenditures attributable to tobacco use were subtracted from their monthly expenditures. It also aims to estimate the extent to which tobacco use increases the probability of poverty status in India.

AIMS AND METHODS

We quantify the increase in poverty by multiplying the difference between headcount ratios with and without tobacco-related spending by population size. We use propensity score matching to estimate the extent to which tobacco use increases the probability of poverty.

RESULTS

About 18.4 million (1.5% of all Indians) are pushed into poverty due to either direct tobacco-related expenditures or tobacco-related healthcare spending. Tobacco use increases households' likelihood of being poor by 3.4%-3.7%.

CONCLUSIONS

With over 22% of the global poor, achieving poverty reduction goals is a significant challenge for India. We show that this challenge is accentuated by increased tobacco spending, which pushes millions of Indians into poverty. To address this, the Government of India must implement both fiscal and non-fiscal policies that regulate tobacco use and, in turn, contribute to poverty reduction in the country.

IMPLICATIONS

Tobacco use has a disproportionate impact on lower socioeconomic groups in India, leading to increased and deeper poverty. This paper finds that, based on existing proven measures of poverty, tobacco use accounts for an additional 18.4 million poor individuals. It also shows that tobacco use increases the likelihood of a household being classified as poor by 3.4% to 3.7%. As India is home to a significant proportion of the global poor, addressing tobacco use becomes crucial for global and domestic poverty reduction goals. Fiscal and non-fiscal policies can be used to regulate tobacco and potentially reduce poverty levels in India.

Short-Term Effects of Side-Stream Smoke on Nerve Growth Factor and Its Receptors TrKA and p75NTR in a Group of Non-Smokers

Environmental tobacco smoke remains a major risk factor, for both smokers and non-smokers, able to trigger the initiation and/or the progression of several human diseases. Although in recent times governments have acted with the aim of banning or strongly reducing its impact within public places and common spaces, environmental tobacco smoke remains a major pollutant in private places, such as the home environment or cars. Several inflammatory and long-term biomarkers have been analysed and well-described, but the list of mediators modulated during the early phases of inhalation of environmental tobacco smoke needs to be expanded. The aim of this study was to measure the short-term effects after exposure to side-stream smoke on Nerve Growth Factor and its receptors Tropomyosin-related kinase A and neurotrophin p75, molecules already described in health conditions and respiratory diseases. Twenty-one non-smokers were exposed to a home-standardized level of SS as well as to control smoke-free air. Nerve Growth Factor and inflammatory cytokines levels, as well the expression of Tropomyosin-related kinase A and neurotrophin receptor p75, were analysed in white blood cells. The present study demonstrates that during early phases, side-stream smoke exposure induced increases in the percentage of neurotrophin receptor p75-positive white blood cells, in their mean fluorescent intensity, and in gene expression. In addition, we found a positive correlation between the urine cotinine level and the percentage of neurotrophin receptor-positive white blood cells. For the first time, the evidence that short-term exposure to side-stream smoke is able to increase neurotrophin receptor p75 expression confirms the very early involvement of this receptor, not only among active smokers but also among non-smokers exposed to SS. Furthermore, the correlation between cotinine levels in urine and the increase in neurotrophin receptor p75-positive white blood cells could represent a potential novel molecule to be investigated for the detection of SS exposure at early time points.