Browsing by Author "Parker K"

Now showing 1 - 8 of 8
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    A composite index of provincial alcohol control policy implementation capacity in Thailand.
    (Elsevier B.V., 2024-06-26) Jankhotkaew J; Casswell S; Huckle T; Chaiyasong S; Kalapat R; Waleewong O; Parker K
    BACKGROUND: There is a well-published literature on the effectiveness and stringency of alcohol control policies, but not many studies focus on policy implementation, where policies transform into impact. The objective of this study is to create a composite index that measures the capacity for implementing effective alcohol control policies across all provinces in Thailand. METHODS: Based on the international literature, we developed a list of key indicators for tracking the implementation of alcohol policies at the subnational level. To ensure these indicators were relevant to the Thai context, we obtained feedback from Thai experts. We collected primary data according to the developed indicators using questionnaires filled in by key informants at the implementing agencies and gathered secondary data at the provincial level. On this basis, we developed indices that reflect the status of alcohol control policy implementation. We then investigated the association between the indices and the prevalence and pattern of alcohol consumption and alcohol-related harms while adjusting for potential confounders using multiple linear regression and negative binomial regression, respectively. RESULTS: Scores on the Provincial Alcohol Policy Implementation Capacity (PAPIC) Index ranged between 39 and 79. We found that each 1-point increase in PAPIC score was associated with a 1.98 % reduction in the quantity of alcohol consumed in grams per day (coefficient: -0.02; 95 %CI: -0.03, -0.00; p-value<0.05; e-0.02= 0.9802). We also found that for each 1-point increase in PAPIC score, the proportion of regular drinkers reduced by 0.30 per cent (coefficient: -0.30; 95 %CI: -0.55, -0.05; p-value<0.05). However, we did not find any association between the indices and alcohol-related harms. CONCLUSION: The level of implementation of alcohol control policy at the sub-national level is associated with alcohol consumption levels. The findings suggest the value of allocating resources to the implementation of alcohol control policy.
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    Benchmarking alcohol policy based on stringency and impact: The International Alcohol Control (IAC) policy index.
    (PLOS, 2022-04-22) Casswell S; Huckle T; Parker K; Romeo J; Graydon-Guy T; Leung J; Byron K; Callinan S; Chaiyasong S; Gordon R; MacKintosh AM; Meier P; Paraje G; Parry CD; Pham C; Petersen Williams P; Randerson S; Schelleman-Offermans K; Sengee G; Torun P; van Dalen W; Harker N; Peer N
    This study developed a measurement tool to assess stringency and 'on-the-ground' impact of four key alcohol policy domains to create an alcohol policy index suitable for benchmarking alcohol policy and assessing change over time in middle- and high-income countries. It involved a collaboration between researchers in 12 diverse countries: New Zealand; Australia; England; Scotland; Netherlands; Vietnam; Thailand; South Africa; Turkey; Chile; Saint Kitts and Nevis and Mongolia. Data on the four most effective alcohol policy domains (availability, pricing policy, alcohol marketing, drink driving) were used to create an alcohol policy index based on their association with alcohol per capita consumption (APC) of commercial (recorded) alcohol. An innovation was the inclusion of measures of impact along with the stringency of the legislation or regulation. The resulting International Alcohol Control (IAC) Policy Index showed a very high negative correlation (-0.91) with recorded APC. Greater affordability of alcohol, an impact measure taking into account prices paid and countries' Gross Domestic Product, was predictive of higher APC (-0.80). Countries in which more modes of alcohol marketing are legally allowed and used had higher APC. Legislation on outlet density and drink driving predicted APC whereas trading hours did not. While stringency and impact measures varied between domains in terms of relationship with APC, overall, there was a strong correlation between impact and stringency (0.77). The IAC Policy Index, which includes measures of policy stringency and 'on-the-ground' impacts in relation to four key policy areas, was found to be strongly associated with commercial alcohol consumed in a number of diverse country settings. It showed a larger relationship than previous indices that include more policy dimensions. The index provides a relatively simple tool for benchmarking and communication with policy makers to encourage a strong focus on uptake of these four most effective alcohol policies.
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    Community use of school grounds outside of school hours
    (Taylor and Francis Group, 2024-07-13) Lin E-Y; Witten K; Carroll P; Parker K
    Physical activity in childhood is essential for healthy development and wellbeing and school grounds can provide neighbourhood access to safe play spaces. This study examines the relationship between school demographics (school size, school decile, ethnicity of students and population density) and whether school grounds are open or closed for community use outside school hours. Data were gathered from 391 primary and intermediate schools across Tāmaki Makaurau (Auckland), Aotearoa New Zealand (84% of Auckland schools) with 250 schools participating in the full survey. The results indicate that higher school decile and lower population density are associated with school grounds being available for community use. This result is concerning. With closed school grounds more likely to be in lower socio-economic and higher population density areas, the children most affected are the same group who have fewer opportunities and less spaces for active play. The main reason schools closed their grounds was ‘vandalism /graffiti/theft concerns’. Low decile schools whose grounds were open outside of school hours shared a similar commitment to involve their communities widely in school activities and found doing so decreased the levels of vandalism. Their approach may offer useful insights to schools that are currently closed.
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    Does flute angle influence box performance?
    (Springer Nature, 2023-09-23) Wade K; Todoroki C; Jamsari A; Gray-Stuart E; Tohill S; Bronlund J; Parker K
    In the production of boxes, it is customary to align the flutes vertically, corresponding to a 0° flute angle. This configuration is widely believed to yield optimal compressive strength, despite existing evidence from corrugated flute boards and boxes that challenge this assumption. The present study investigates the hypothesis that non-vertical flute angles do not significantly compromise box compression strength and may potentially offer enhancements in other performance characteristics. Regular slotted container boxes (385 × 238 × 300 mm) constructed from single wall C-flute board were used in this study. Ten flute angles were selected for box level testing: 0°, 5°, 7.5°, 10°, 12.5°, 15°, 20°, 30°, 45° and 60°. Samples of converted board were subjected to edge crush testing (ECT) following TAPPI T-811 and four-point-bending following TAPPI T-820. Box crush testing (BCT) followed NZS 1301.800 2006 (New Zealand Standard). Component testing results were consistent with previous studies. Outcomes showed a general linear reduction in ECT with increasing flute angle, and nonlinear relationships between flute angle and bending force and stiffness. At the box level, peak load did not decline significantly between 0° and 45°, however 60° flute angles had significantly lower peak loads (α = 0.05). At certain angles, notably 10° and 30°, less variation in peak load was observed. BCT force and stiffness of the box significantly improved in terms of median and variation at 10° and 30°. Therefore, a flute angle of less than 45° does not significantly reduce compression strength.
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    Effective alcohol policies and lifetime abstinence: An analysis of the International Alcohol Control policy index
    (John Wiley and Sons Australia, Ltd on behalf of Australasian Professional Society on Alcohol and other Drugs, 2023-03) Leung J; Casswell S; Parker K; Huckle T; Romeo J; Graydon-Guy T; Byron K; Callinan S; Chaiyasong S; Gordon R; Harker N; MacKintosh AM; Meier P; Paraje G; Parry CD; Pham C; Williams PP; Randerson S; Schelleman-Offermans K; Sengee G; Torun P; van Dalen W
    Introduction Alcohol abstinence remains common among adults globally, although low and middle-income countries are experiencing declines in abstention. The effect of alcohol policies on lifetime abstinence is poorly understood. The International Alcohol Control (IAC) policy index was developed to benchmark and monitor the uptake of effective alcohol policies and has shown strong associations with alcohol per capita consumption and drinking patterns. Uniquely, the index incorporates both policy ‘stringency’ and ‘impact’, reflecting policy implementation and enforcement, across effective policies. Here we assessed the association of the IAC policy index with lifetime abstinence in a diverse sample of jurisdictions. Methods We conducted a cross-sectional analysis of the relationship between the IAC policy index score, and its components, and lifetime abstinence among adults (15+ years) in 13 high and middle-income jurisdictions. We examined the correlations for each component of the index and stringency and impact separately. Results Overall, the total IAC policy index scores were positively correlated with lifetime abstinence (r = 0.76), as were both the stringency (r = 0.62) and impact (r = 0.82) scores. Marketing restrictions showed higher correlations with lifetime abstinence than other policy domains (r = 0.80), including restrictions on physical availability, pricing policies and drink-driving prevention. Discussion and Conclusion Our findings suggest that restricting alcohol marketing could be an important policy for the protection of alcohol abstention. The IAC policy index may be a useful tool to benchmark the performance of alcohol policy in supporting alcohol abstention in high and middle-income countries.
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    Effective alcohol policies are associated with reduced consumption among demographic groups who drink heavily.
    (Wiley Periodicals LLC on behalf of Research Society on Alcohol, 2023-04-23) Casswell S; Huckle T; Parker K; Graydon-Guy T; Leung J; Parry C; Torun P; Sengee G; Pham C; Gray-Phillip G; Callinan S; Chaiyasong S; MacKintosh AM; Meier P; Randerson S
    BACKGROUND: Alcohol policies stand out among other noncommunicable disease-relevant policies for the lack of uptake. Composite indicators have been developed to measure the effects of alcohol control policy. We investigated whether drinking patterns among demographic groups from general population samples of drinkers from diverse countries are associated with alcohol control policy as measured by the International Alcohol Control (IAC) Policy Index. METHODS: Representative samples of adult drinkers from 10 countries (five high-income and five middle-income) were surveyed about alcohol consumption, using beverage and location-specific questions. MEASUREMENTS: The IAC Policy Index was analyzed with frequency, typical occasion quantity, and volume consumed. Analyses used mixed models that included interactions between country IAC Policy Index score and age group, gender, and education level. FINDINGS: Each increase in IAC policy index score (reflecting more effective alcohol policy) was associated with a 13.9% decrease in drinking frequency (p = 0.006) and a 16.5% decrease in volume (p = 0.001). With each increase in IAC Policy Index score, both genders decreased for all three measures, but men less so than women. Women decreased their typical occasion quantity by 1.2% (p = 0.006), frequency by 3.1% (p < 0.001), and total volume by 4.2% (p < 0.001) compared to men. Low and mid-education groups decreased their typical occasion quantity by 2.6% (p < 0.001) and 1.6% (p = 0.001), respectively, compared to high education, while for drinking frequency the low education group increased by 7.0% (p < 0.001). There was an overall effect of age (F = 19.27, p < 0.0001), with 18-19 and 20-24-year-olds showing the largest decreases in typical occasion quantity with increasing IAC policy index score. CONCLUSIONS: The IAC Policy Index, reflecting four effective policies, was associated with volume and frequency of drinking across 10 diverse countries. Each increase in the IAC Policy Index was associated with lower typical quantities consumed among groups reporting heavy drinking: young adults and less well-educated. There is value in implementing such alcohol policies and a need to accelerate their uptake globally.
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    Influence of different box preparations on creep performance of corrugated fibreboard boxes subject to constant and cycling relative humidity environments
    (John Wiley and Sons, Ltd, 2022-06-01) Gray-Stuart EM; Wade K; Redding GP; Parker K; Bronlund JE
    To understand the effect of load and relative humidity (RH) on box creep in cool storage conditions, standard tests are performed. However, these test conditions are oversimplified compared with actual shipping conditions. Our aim is to develop test conditions that more closely mimic those encountered during refrigerated conditions to investigate their influence on creep performance and box lifetime. We compared three box preparations: (i) empty boxes used as a control, (ii) filled boxes, and (iii) boxes with only two side panels exposed to the atmosphere. A controlled environment test facility was used to subject sets of 24 boxes to 30% of their ultimate failure load under different cyclic and constant relative humidity conditions. Results indicate that filled boxes had substantially reduced performance in terms of secondary creep rate and lifetime. The fill in the box contributed to out-of-plane displacement of the side panels which manifested earlier than in the control, resulting in a higher creep rate. Boxes with only two exposed panels had lower moisture uptake and performed substantially better than the control. These findings demonstrate how creep performance and box lifetime depend on the box conditions including fill and the area of the box that is exposed for moisture transfer. Alternative box preparations which mimic supply chain conditions are worthy of investigation in creep analysis as they will help predict more accurately box performance in the cold supply chain.
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    Using the International Alcohol Control (IAC) policy index to assess effects of legislative change in Aotearoa New Zealand.
    (BioMed Central Ltd, 2024-06-11) Casswell S; Randerson S; Parker K; Huckle T
    BACKGROUND: The IAC Policy Index was developed to allow comparison in alcohol policy between countries and within countries over time including in low resource settings. It measures four effective alcohol policies and takes into account stringency of regulation and the actual impact on the alcohol environment, such as trading hours and prices paid. This framework was used to assess policy in Aotearoa New Zealand in a time period covering two relevant legislative changes. This is the first study to use an alcohol policy index to assess and describe legislative change within country. METHODS: Data to calculate the IAC Policy Index was collected for 2013 and 2022. Stringency of policy was assessed from legislative statutes and impacts of policy on the alcohol environment from administrative data and specifically designed data collection. RESULTS: The overall IAC Policy Index score improved over the time period. The scores for the separate policy areas reflected the legislative changes as hypothesised, but also independent changes in impact, given ecological changes including reduced enforcement of drink driving countermeasures and increased exposure to marketing in digital channels. The IAC Policy index reflects the changes in policy status observed in Aotearoa, NZ. DISCUSSION: The IAC Policy Index provided a useful framework to assess and describe change in alcohol legislation contextualised by other influences on policy impact over time within a country. The results indicated the value of assessing stringency and impact separately as these moved independently. CONCLUSIONS: The IAC Alcohol Policy Index, measuring both stringency and actual impact on the alcohol environment with a focus on only the most effective alcohol policies provides meaningful insights into within-country policy strength over time. The IAC Policy Index used over time can communicate to policy makers successes and gaps in alcohol policy.