Household Purchases Research Articles

A quantitative study on the impact of a new outdoor advertising restrictions policy in Bristol (UK)

Abstract Background Bristol was the first city outside London to introduce a policy to restrict adverts for high fat, salt and sugar (HFSS) products and other unhealthy commodities (alcohol, gambling, payday loans) on council sites in 2021. This research evaluates the impact of this policy. Methods We conducted a controlled repeated cross-sectional study of Bristol (intervention) and neighbouring South Gloucestershire (control) residents before (n = 2,543) and after (n = 2,043) the policy came into effect. Self-reported exposure to adverts of HFSS products, alcohol and gambling and consumption/use of these products was collected. The intervention effect was analysed using a weighted controlled before-after design. In addition, we analysed 2020-23 timeseries of foods and drinks purchased by 1,012 households from Bristol (n = 217) and control areas (n = 795) from Kantar’s Worldpanel Take Home data. A controlled interrupted time series design was used to estimate the impact of the policy on weekly household purchases of energy and nutrients from HFSS products. Results Preliminary results did not indicate significant changes in exposure to unhealthy commodity adverts or consumption/use of unhealthy commodities post-intervention. However, the majority of results suggested a potential reduction; with for example a -22.1 (95% CI -47.3, 16.2) percentage point decrease in reported consumption of fast-food compared to controls. We also did not observe significant differences in weekly energy purchased from HFSS products compared to counterfactual; 897.6Kcal, 95%CI -57.7, 1,853.0, nor in purchases of fat (39.0g, 95%CI -20.1, 98.1), sugar (48.0g, 95%CI -19.8, 115.7) or salt (-0.4g, 95%CI -4.1, 3.2) from HFSS products. Conclusions Preliminary results indicate the new policy had no clear impact on exposure to unhealthy commodity adverts or purchasing and consumption of HFSS products. This may be attributable to the relatively small amount of total advertisement space owned by Bristol City Council (∼30%). Key messages • Policies restricting adverts of HFSS products and other unhealthy commodities are potentially effective tools to improve diet and to reduce diet-related diseases and public health inequalities. • We did not observe a measurable impact of this policy in Bristol, which may be attributable to the relatively small Council-owned advertisement estate within the total available advertisement space.

Dowry demand, perception of wife-beating, decision making power and associated partner violence among married adolescent girls: A cross-sectional analytical study in India.

Violence against women is considered a fundamental violation of their human rights. According to the world health organization (WHO), one-third of women worldwide experience some form of intimate partner violence (IPV). This study aimed to investigate the relationship between dowry demand, perception of wife-beating, decision-making on work and household purchases and physical, sexual, and emotional violence against married adolescent girls in India by using a large dataset. Data from the Understanding the lives of adolescents and young adults (UDAYA) project survey were used in this study. The final sample size included 4893 married adolescent girls. Descriptive statistics and bivariate analyses were performed to examine preliminary results. Multivariate logistic regression analysis was used to analyze the associations between dowry demand, perception of wife-beating, decision-making and types of IPV. The prevalence of emotional, physical, and sexual violence among married adolescent girls were 28.6%, 22.9%, and 26.1%, respectively. Approximately 44% of married adolescent girls have experienced some form of violence (emotional, physical, or sexual). The likelihood of experiencing violence was 3.64 times more likely among adolescent girls who reported that dowry was demanded by their in-laws than their counterparts [aOR: 3.64; CI: 3.05-4.35]. Moreover, married girls who justified wife-beating were more likely to face any violence than their counterparts [aOR: 1.56; CI: 1.28-1.90]. Similarly, adolescent girls whose work decisions were made by others had higher odds of experiencing any violence than those who decided their work themselves/jointly with others [aOR: 1.34; CI: 1.07-1.68]. The odds of any violence were higher among adolescent girls whose decisions on household purchases were made by others compared to those who decided to make purchases themselves or jointly with others [aOR: 1.37; CI: 1.09-1.71]. The findings revealed significant associations between dowry-demand, justification of wife-beating, decision making power and IPV among married adolescent girls, and suggest policies that help reduce violence related to the predominantly practiced dowry system in the country, and programs aimed at educating adolescent married girls about their rights against violence and empowering them to retain equal decision-making power within their families and reduce their vulnerability to domestic violence.

Curbing household food waste and associated climate change impacts in an ageing society.

We explored the intricate quantitative structure of household food waste and their corresponding life cycle greenhouse gas emissions from raw materials to retail utilizing a combination of household- and food-related economic statistics and life cycle assessment in Japan. Given Japan's status as a nation heavily impacted by an aging population, this study estimates these indicators for the six age brackets of Japanese households, showing that per capita food waste increases as the age of the household head increases (from 16.6 for the 20's and younger group to 46.0 kg/year for 70's and older in 2015) primarily attributed to the propensity of older households purchase of more fruits and vegetables. Further, the largest life cycle greenhouse gases related to food waste was 90.1 kg-CO2eq/year for those in their 60's while the smallest was 39.2 kg-CO2eq/year for 20's and younger. Furthermore, food waste and associated emissions are expected to decline due to future demographic changes imparted by an aging, shrinking population after 2020 until 2040. Specific measures focused on demographic shifts are crucial for Japan and other countries with similar dietary patterns and demographics to achieve related sustainable development goals through suppressing food waste and associated emissions under new dietary regimes.

Reduced red and processed meat consumption is associated with lower diet costs in US households: a national analysis of protein substitutions.

To examine the association between red and processed meat consumption and total food expenditures in US households and explore whether households could reduce food costs by substituting these meats with other protein sources such as poultry, seafood, eggs and plant proteins. Cross-sectional study using data from the National Household Food Acquisition and Purchase Survey (FoodAPS). Using adult male equivalents (AME) for standardisation, we categorised red and processed meat purchases into quintiles. We used generalised linear models to explore the association between red or processed meat consumption and food expenditures and the cost effect of substituting meat with other proteins. United States. Data from 4739 households with valid acquisition information from FoodAPS, a stratified multistage probability sample of US households. Higher red and processed meat consumption were both significantly associated with higher total weekly food expenditures, particularly among households with low income. Substituting red or processed meat with poultry, eggs or plant proteins did not significantly affect overall food expenditures, whereas replacing meat with seafood, especially varieties high in n-3 fatty acids, led to increased costs. Reducing red and processed meat consumption could offer savings for households, particularly those with low income. Although substitutions with seafood high in n-3 could increase expenses, alternative protein sources like poultry and plant proteins may serve as cost-neutral replacements. Public health strategies should emphasise dietary shifts' economic, health and environmental benefits and aim to make nutritious yet affordable protein sources more accessible.

Associations between exposure to advertising of foods high in fats, salt and sugar and purchase of energy and nutrients: a cross-sectional study.

To assess associations between self-reported advertising exposure to foods high in fats, salt and sugar and household purchases of energy, nutrients and specific product categories. A cross-sectional design was used. Advertising exposure data were gathered using a questionnaire administered to the main shopper of each household, and purchase data from supermarkets and other stores for these households were accessed for a 4-week period during February 2019. Households in London and the North of England. Representative households (N 1289) from the Kantar Fast Moving Consumer Goods Panel. Main shoppers were predominantly female (71 %), with a mean age of 54 years (±13). Linear regression models identified that exposure to foods high in fats, salt and sugar advertising through traditional mediums (including broadcast and print), but not digital, transport, recreational or functional mediums, was associated with greater purchases of energy (9779 kcal; 95 % CI 3515, 16 043), protein (416 g; 95 % CI 161, 671), carbohydrate (1164 g; 95 % CI 368, 1886) and sugar (514 g; 95 % CI 187, 841). Generalised linear models showed that individuals who reported exposure to sugary drink advertising were more likely to purchase sugary drinks (1·16; 95 % CI 2·94, 4·99) but did not purchase more energy or nutrients from sugary drinks. There was no evidence of associations between exposure to advertising for sugary cereals or sweet snacks and purchases from these categories. There was a strong influence of traditional advertising and sugar-sweetened beverage advertising on household food and drink purchases, thus supporting the need for advertising restrictions across traditional formats and for sugary drinks specifically.

Beyond information: The power of personalized nudges in promoting vegetable purchases

This study explores the impact of providing general health-related information and personalized nudges aimed at modifying cognitive biases on enhancing vegetable purchases and consumption. We conducted a four-month natural field experiment and analyzed daily purchase records of 942 households using receipt scanner data. While merely explaining the loss-framed health benefits of vegetables did not significantly alter the overall vegetable purchasing habits, we observed a notable decrease in meat purchases, attributing this to the indirect effects of vegetable information. Additionally, when the status of relative vegetable purchases amount was provided based on personal purchase histories, individuals who initially purchased more vegetables demonstrated an increased buying volume. This effect was more pronounced in households with children than in those without. The nudging interventions had long-term effects beyond the experiment’s duration, possibly driven by an altruistic concern for children’s health within the household. Therefore, while nudges alone are not a complete solution, their ability to effect long-term changes in household purchasing patterns suggests that they can be a valuable addition to policy tools promoting sustainable and healthy food choices, as well as traditional mass-targeted promotion strategies.

Evolution of dietary patterns in Flanders: an ecological trend study on best-selling cookbook recipes (2008–2018) and their correlation with household purchases

BackgroundWith rising obesity rates in Western societies, analyzing changes in dietary patterns is paramount. While nutritional surveys have been informative, traditional cookbooks have historically shed light on national cuisines and its changes. Despite the growing popularity of online platforms for food information, cookbooks might still reflect prevalent dietary trends and the diets people follow. This study examined (1) the changes in nutritional content and food group usage in the best-selling cookbooks from 2008 to 2018, and (2) the correlation between the food groups in these cookbooks and dietary patterns (inferred from household purchases) over the same timeframe.MethodsAn exploratory ecological study was conducted on 20 main course recipes of each of the five best-selling cookbooks in Flanders annually between 2008 and 2018. Trends in macronutrients and food group usage in these recipes were analyzed using generalized linear models. Additionally, these trends were compared to household purchase data in Flanders using correlation matrices.ResultsOur results reveal a rising trend towards the use of plant-based ingredients and meat alternatives in cookbooks over the period 2008–2018. There was an increase in the usage of vegetables, nuts & seeds, and cheese. Conversely, there was a decline in the usage of meat, sugar & sweeteners, alcohol, and dairy (all p-values < 0.05). In terms of macronutrient content, there was an upswing in carbohydrate, fibre, and sugar levels, while the total fat content showed a decrease (all p-values < 0.05). The levels of protein and saturated fat remained consistent over time. Notably, shifts in plant-based and animal-based food group preferences in popular cookbook recipes align with the trends seen in actual household purchases of these food groups (all p-values < 0.05).ConclusionThese findings indicate that cookbook content evolves over time, potentially reflecting shifts in population dietary patterns. Future research is needed to (1) determine any causative link between cookbooks and any causative link between cookbooks and (2) the potential for cookbooks to aid in health promotion.

Estimated reduction in obesity prevalence and costs of a 20% and 30% ad valorem excise tax to sugar-sweetened beverages in Brazil: A modeling study.

The consumption of sugar-sweetened beverages (SSBs) is associated with obesity, metabolic diseases, and incremental healthcare costs. Given their health consequences, the World Health Organization (WHO) recommended that countries implement taxes on SSB. Over the last 10 years, obesity prevalence has almost doubled in Brazil, yet, in 2016, the Brazilian government cut the existing federal SSB taxes to their current 4%. Since 2022, a bill to impose a 20% tax on SSB has been under discussion in the Brazilian Senate. To simulate the potential impact of increasing taxes on SSB in Brazil, we aimed to estimate the price-elasticity of SSB and the potential impact of a new 20% or 30% excise SSB tax on consumption, obesity prevalence, and cost savings. Using household purchases data from the Brazilian Household Budget Survey (POF) from 2017/2018, we estimated constant elasticity regressions. We used a log-log specification by income level for all beverage categories: (1) sugar-sweetened beverages; (2) alcoholic beverages; (3) unsweetened beverages; and (4) low-calorie or artificially sweetened beverages. We estimated the adult nationwide baseline intake for each beverage category using 24-h dietary recall data collected in 2017/2018. Taking group one as the taxed beverages, we applied the price and cross-price elasticities to the baseline intake data, we obtained changes in caloric intake. The caloric reduction was introduced into an individual dynamic model to estimate changes in weight and obesity prevalence. No benefits on cost savings were modeled during the first 3 years of intervention to account for the time lag in obesity cases to reduce costs. We multiplied the reduction in obesity cases during 7 years by the obesity costs per capita to predict the costs savings attributable to the sweetened beverage tax. SSB price elasticities were higher among the lowest tertile of income (-1.24) than in the highest income tertile (-1.13), and cross-price elasticities suggest SSB were weakly substituted by milk, water, and 100% fruit juices. We estimated a caloric change of -17.3 kcal/day/person under a 20% excise tax and -25.9 kcal/day/person under a 30% tax. Ten years after implementation, a 20% tax is expected to reduce obesity prevalence by 6.7%; 9.1% for a 30% tax. These reductions translate into a -2.8 million and -3.8 million obesity cases for a 20% and 30% tax, respectively, and a reduction of $US 13.3 billion and $US 17.9 billion in obesity costs over 10 years for a 20% and 30% tax, respectively. Study limitations include using a quantile distribution method to adjust self-reported baseline weight and height, which could be insufficient to correct for reporting bias; also, weight, height, and physical activity were assumed to be steady over time. Adding a 20% to 30% excise tax on top of Brazil's current federal tax could help to reduce the consumption of ultra-processed beverages, empty calories, and body weight while avoiding large health-related costs. Given the recent cuts to SSB taxes in Brazil, a program to revise and implement excise taxes could prove beneficial for the Brazilian population.

Tracking time-varying brand equity using household panel data

This paper proposes a novel yet simple approach for tracking time-varying utility-based brand equity using household panel data. Our two-stage procedure allows us to estimate a discrete choice model that explicitly accounts for consumer heterogeneity, state dependence, price endogeneity, and dynamic brand equity. We present dynamic brand utility as a time-varying measure that adds to current market-based or mindset metrics. An empirical study of household purchases in the detergent category reveals that brand equity varies over time. The temporal changes in the brand equity of single brands and the differences across brands have significant implications for consumers’ brand choice and, consequently, for brand management. Therefore, the dynamic utility-based model offers valuable support for tracking a brand’s state, including the brand’s competition, and for making appropriate marketing decisions.

Exploring the Influence of Sociocultural Factors on the Non-Utilization of Family Planning amongst Women in Ethiopia's Pastoralist Regions.

This study aimed to explore the sociocultural determinants of family planning (FP) utilization among women in pastoralist areas of Ethiopia. A community-based cross-sectional survey was conducted involving 682 reproductive-aged women selected from three regions in pastoralist districts. Hierarchical logistic regression was used to identify factors associated with women who did not use FP. This study revealed that 47% of women did not use FP. Women who did not use FP were more likely to have shorter spacing between births, lack their partner's support, not be involved in decisions regarding large household purchases, and have low household expenditures. Overall, the prevalence of not using FP is significantly high in pastoralist communities in Ethiopia. The authors recommend that investment in women's health and FP be targeted at educational campaigns to raise awareness about FP and its importance. Engaging men and community leaders, promoting their support for FP and contraceptive use, and providing financial assistance to address financial barriers, such as transportation costs and healthcare fees, are important aspects that can increase the utilization of FP methods.

Beans, peas and pulses for improved public and planetary health: Changing UK consumption patterns

Beans, peas and pulses offer significant nutritional, health and environmental benefits (1,2,3, 4) and the FAO states that including pulses in agrifood systems is key to achieving the Sustainable Development Goals(5). Recommended intakes vary across national food-based dietary guidelines(6), but higher intakes are associated with benefits including increased satiety, reduced blood pressure, lower risk of cardiovascular disease and improved gut microbiota composition and activity(7). Worldwide, the average consumption of pulses is 21g per person per day(8) but published analysis of UK intakes is scarce. The aim of this review was to analyse consumption trends using two UK government datasets.The Family Food module of the Living Costs and Food Survey details food and drink purchases from approximately 5000 households per year(9). The ‘UK – household purchases’ data include the average (mean) quantities purchased per person per week. Categories relating to beans, peas and pulses were identified, and data were presented as graphs of purchasing trends (1974–2021).The National Diet and Nutrition Survey (NDNS)(10) assesses the nutritional status of 1000 participants (1.5 years and over) annually. Personal-level dietary data (2008-2019) were evaluated for subgroups ‘baked beans’ and ‘beans and pulses including ready meal and homemade dishes’, including fresh, frozen and canned beans and pulses, and recipes containing them. Peas/ green beans were excluded because of the nature of the data aggregation. Food-level dietary data (2018-19) were assessed for the frequency of consumption of different types of peas, beans and pulses.Our analysis of the Family Food datasets shows that, at 28g per person per day, the current average (mean) consumption of beans, peas and pulses in the UK is suboptimal. Our parallel analysis of NDNS data showed that more than 40% of participants were not eating any beans and pulses (excluding peas).Dietary trends are shifting. The overall consumption of beans, peas and pulses has been falling steadily since the late 1980s. This is mostly due to the drop in consumption of peas and baked beans, though these are still the most frequently consumed legume categories in the UK diet. Canned pea purchases fell from 88g per person per week in 1974 to 14g per person per week in 2020-21. Baked bean purchases peaked at 133g per person per week in 1986, dropping to 78g in 2020-21.Purchases of other canned beans and pulses (excluding baked beans) have increased noticeably in the last decade, from 17g per person per week 2015-16 to 32g in 2020-21. Purchases of dried pulses have remained consistent, averaging 11g per person per week in 2020-21.This analysis indicates significant scope to deliver affordable, accessible health and environmental benefits through increased consumption of beans, peas and pulses in the UK.

Disparities in sugar-sweetened beverage expenditures: insights from Indonesian urban and rural households

Excessive consumption of sugar-sweetened beverages (SSBs) poses a significant health risk because of their poor nutritional content. This study investigates SSB expenditure among Indonesian households with the goal to analyse disparities and determinants in urban and rural areas. Using the data from March 2022 national socio-economic survey, percentages and means were calculated, and binary probit analysis was performed. The results indicate that the majority of Indonesian households (73.59%) purchase sugary drinks, with slightly higher proportions and mean SSB expenditures observed in rural compared to urban households. Household SSB expenditure at the national level exhibits linear associations with quintiles of household food expenditure and size, a consistent pattern observed in both rural and urban areas. Notably, household composition, including a larger number of children, female adults, and elderly individuals, correlates with reduced SSB expenditures in urban households, while no such trend is observed in rural counterparts. Despite similar access to sugary drinks in rural and urban areas, urgent attention is needed to enhance health literacy among rural households. Interventions through formal education institutions or community-driven initiatives are crucial to address this important health concern and foster healthier beverage choices across the diverse Indonesian landscape.

Exploring the link between household structure and women's household decision-making autonomy in Mauritania.

Governments in sub-Saharan African countries aim to increase married women's household decision-making autonomy as it remains a critical determinant of desirable health behaviours such as healthcare utilisation, antenatal care visits, and safer sex negotiation. However, very few studies explore how household structure (i.e., monogamous or polygamous) is associated with married women's household decision-making autonomy. Our paper seeks to address this gap. Using the 2019-20 Mauritania Demographic and Health Survey, a nationally representative dataset, and applying logistic regression analysis, we explore how married women's household structure is associated with their household decision-making autonomy. We find that 9% of married women are in polygamous marriages, while 63% and 65% are involved in decision-making about their health and large household purchases, respectively. Additionally, 76% and 56% are involved in decision-making about visiting family or relatives and household expenditures. After accounting for socio-economic and demographic factors, we find that compared to women from monogamous households, those from polygamous households are less likely to participate in decision-making about their health (OR=0.65, p < 0.001), making large household purchases (OR=0.65, p < 0.001), visiting family or relatives (OR=0.72, p < 0.001), and household expenditure (OR=0.58, p < 0.001). Based on our findings, we recommend the urgent need to review and re-evaluate policies and approaches seeking to promote gender equality and women's autonomy in Mauritania. Specifically, it may be critical for intervention programmes to work around reducing power imbalances in polygamous household structures that continue to impact married women's household decision-making autonomy adversely. Such interventions should centre married women's socio-economic status as a central component of their empowerment strategies in Mauritania.

How does eligibility for GusNIP produce prescriptions relate to fruit and vegetable purchases and what factors shape the relationship? A protocol for a secondary analysis of nationally representative data in the USA

IntroductionUS Department of Agriculture (USDA) Gus Schumacher Nutrition Incentive Programme (GusNIP) produce prescription programme (PPR) ‘prescriptions’ provide eligible participants with low income, risk for diet-related chronic disease and food insecurity...

Fruitful changes? Exploring household fruit purchase decisions following comprehensive food policy regulations in Chile

Changes in unprocessed healthy food purchases associated with the implementation of comprehensive food policy remain understudied. This study analyzes whether, following the announcement, modification, and implementation of Chile's Food Labeling and Advertising law targeting highly processed food (occurring in 2012, 2015, and 2016, respectively), households improved their fruit purchase decisions: purchase participation (i.e., buying likelihood) and purchase quantity. Expenditure data from a representative sample of Chilean households were employed, covering two consecutive survey waves conducted in 2011/2012 and 2016/2017. After controlling for socioeconomic factors (e.g., prices and income), results indicate that only purchase participation increased, providing weak support for positive spillover effects of a comprehensive food policy on fruit purchases. Subsample analyses reveal that this increase was driven by college-educated, childless, and low-income households and was stronger for sweeter and more convenient fruits. Considering that households in Chile do not meet health recommendations for daily fruit intake, additional policy efforts targeting healthy, unprocessed food consumption could be considered.

Evolution of household availability of added sugars and their sources in Brazil: analysis of Household Budget Surveys from 2002 to 2017.

The objective of this study was to describe the evolution of household purchase of added sugars and their main food sources in Brazil. Nationally representative data from the Household Budget Surveys from 2002-2003, 2008-2009 and 2017-2018 were used. Energy and added sugar quantities were estimated by means of per capita food quantities. The items considered as food sources were: (1) table sugar: refined sugar and other energetic sweeteners and (2) processed and ultra-processed foods with added sugar: soft drinks; other drinks; sweets, candies and chocolates; cookies; cakes and pies and other foods. The parameters estimated were: mean share of added sugar in total energy and, for food sources, the share of added sugar in total sugar intake and the impact of variations in sources of added sugar between 2008 and 2017. There was a regular share of energy from added sugar to total energy intake between 2002 and 2008 but a reduced share in 2017. Between 2008 and 2017, there was a decrease in the share of refined sugar and other sweeteners and soft drinks to total sugar intake and an increased share of all other items. High-income households had a lower share of refined sugar and other energetic sweeteners, but a higher share of soft drinks, sweets, candies and chocolates. The decrease in added sugar in 2017 was mainly due to the lower share of soft drinks. In conclusion, Brazilians' total intake of added sugar was decreased, mostly owing to reduced consumption of sugar from soft drinks.

Measuring Women’s Economic Empowerment in the Democratic Republic of Congo, Kenya, Nigeria, and Burkina Faso

There are multiple tools to measure women’s economic empowerment but limited information exists about their cross-cultural validity and reliability. This study assesses the psychometric properties of ten questions measuring two dimensions of women’s economic empowerment. It uses cross-sectional data from six low-and-middle-income settings: Kinshasa and Kongo Central (Demographic Republic of Congo), Kenya, Lagos and Kano (Nigeria), and Burkina Faso. The first dimension, household decision making, was proxied by women’s power to decide household purchases on large items, daily needs, medical treatment, and clothes. This dimension was valid and reliable in all settings. The second dimension, financial autonomy, was proxied by whether women had savings, knew where to obtain financial information, and had financial goals. This dimension was valid and reliable in Kenya, Lagos, and Kano. These findings can inform future surveys aiming to measure women’s economic empowerment. HIGHLIGHTS Given gaps in WEE measurement, this study aims to identify a set of items measuring dimensions of WEE that are consistent and reliable across cultures and over time. Specifically, the study seeks to measure women’s power in household decision making and financial autonomy that would be consistent across six settings in four African countries. By summarizing dimensions of WEE into seven questions, it supports efficiency of current and future population surveys measuring women’s empowerment. The findings for women’s household decision making are consistent across settings suggesting they can be generalized to other, similar contexts.

Sustainable household capability of young adults: Role of parental norms

This paper aims to investigate the influence of two types of parental norms, descriptive and injunctive, on young adults' sustainable attitudes and sustainable household capability through the application of the Knowledge-Attitude-Behaviour (KAB) theory. Empirical research was conducted by an online questionnaire on a sample of 356 young adults in Croatia aged 18 to 28. The results confirmed that young adults had high levels of sustainable knowledge and attitudes. They exhibited a high tendency towards saving water and energy, and a low tendency towards sustainable and green household purchases and recycling and reusing as integral practices of sustainable household capability. The results proved the adequacy of the KAB theory in the context of sustainable knowledge, attitudes, and behaviour, affirming the theory's assumptions in terms of sustainable household capability among young adults. The results also confirmed that young adults' sustainable knowledge had a strong significant positive impact on sustainable attitudes, that sustainable attitudes had a significant positive impact on sustainable behaviour in the context of sustainable household capability, and that sustainable knowledge had an indirect significant positive impact on sustainable behaviour in the context of sustainable household capability. Considering parental norms, the results confirmed a significant positive impact of descriptive parental norms related to sustainable parental behaviour on the practices constituting sustainable household capability of young adults. At the same time, injunctive parental norms were shown to have a limited impact on both attitudes and behaviours in the context of capability. Given that previous research brought contradictory and inconclusive findings that lead to misinterpretation in the research field, the results bring a comprehensive and transparent understanding and an overview of sustainable behaviour among young adults in the context of their sustainable household capability.

Quantifying the greenhouse gas emissions of New Zealand households’ food purchases: An analysis by sociodemographic variables

New Zealand has committed to a 50% reduction in greenhouse gas emissions (GHGEs) from 2005 levels by 2030. Dietary changes within New Zealand could simultaneously improve population health and contribute towards the nation’s emissions reduction target, as agricultural emissions are estimated to account for half of New Zealand’s GHGEs(1). This research aimed to quantify the GHGEs associated with household purchases of major food groups in New Zealand and identify the sociodemographic characteristics that are associated with per capita household dietary emissions. Household dietary emissions were estimated using the NielsenIQ Homescan(R) consumer panel — a large sample of households within New Zealand who report purchasing data of take-home food and beverages. The sample is nationally representative in terms of broad geographical regions and selected key demographic characteristics. Carbon emission estimates were assigned to 1,908,485 total food and beverage purchases from 1,775 households over one year (2019) using a process-based life cycle assessment (LCA) dataset initially constructed in the United Kingdom (UK) and adapted for New Zealand(2). This LCA dataset contains estimates of greenhouse gas emissions generated over the life cycle of the production of food products from the following stages: farming and processing, transit packaging, consumer packaging, transport, warehouse and distribution, refrigeration, and overheads. Greenhouse gas emissions are expressed in kg of carbon dioxide equivalents per kg of food product over a 100-year time horizon. Total emissions from purchases of major food groups were then estimated. Multiple linear regression was used to examine the relationships between household variables and per capita dietary emissions. Overall purchases of red and processed meat (35%) and dairy products (19%) were responsible for the greatest proportion of emissions. The age group of the primary household shopper as well as household size were predictors of per capita dietary emissions — households with primary shoppers &gt; 65 years had, on average, 33% (95% CI: 20% to 49%) higher per capita dietary emissions, compared to households with primary shoppers 34 years; and every additional household member was associated with, on average, 11% (95% CI: 9% to 13%) lower per capita dietary emissions. We have shown in this large representative sample of New Zealand households that purchases of just two food groups — red and processed meat, and dairy — were responsible for approximately half of dietary greenhouse gas emissions. Larger households had lower per capita dietary greenhouse gas emissions, and older shoppers had relatively higher greenhouse gas emissions. Whilst similar associations have been reported elsewhere more research is needed to confirm these latter findings. With enhanced understanding of the observed association between age of a household’s primary shopper and per capita dietary emissions, interventions may be devised that encourage shoppers to purchase lower-emitting foods, particularly less meat and dairy.

A Cross-sectional Study on Women Empowerment among Residents of Different Slum Settlements in a Ward of Kolkata, West Bengal

Abstract Background: The Sustainable Development Goal 5 focuses to “Achieve gender equality and empower all women and girls.” Promoting women’s empowerment is essential for reducing violence against women, decision-making in health and well-being, and proper upbringing of children, thereby reducing maternal and child mortality. Objectives: The objectives of this study were to assess the level of empowerment among married women residing in selected slum settlements of Kolkata, to estimate the proportion of employed women, to describe the pattern of decision-making among them, and to find the sociodemographic factors (if any) associated with the level of empowerment. Materials and Methods: A cross-sectional observational study was carried out among 350 married women using face-to-face interviews from October 2022 to September 2023. The study utilized a predesigned, pretested, and structured schedule consisting of questions adapted from the National Family Health Survey-5 women’s questionnaire. Data analysis was conducted using SPSS version 25.0. Multivariable multinomial logistic regression was employed to identify factors associated with low and medium women empowerment. Results: Of the 334 participants surveyed, approximately half exhibited low levels of empowerment (49.7%). The majority of study participants reported that decisions pertaining to their own health care, significant household purchases, visits to family or relatives, and voting in elections were made jointly by both spouses. The age of the respondent between 19 and 28 years (adjusted odds ratio [AOR] 4.54 [1.09–18.80]) and the age of husband between 35 and 48 years (AOR 4.48 [1.46–8.28]) had statistically significant higher AOR of low women empowerment. Conclusion: A substantial proportion of women in the study had low empowerment scores and less than one-fifth were employed. Increasing employment opportunities for women and promoting their social participation is recommended.