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15), GCSE/vocational (OR=1.48), other/still studying (OR=1.12) and no post-16 qualifications (OR=1.48) had higher odds of smoking than those with university qualifications, as did those who earned in the lowest (OR=1.23), third (OR=1.18) and second quartiles (OR=1.08) compared with those earning in the highest. Associations between smoking and employment (OR=1.03) and car ownership (OR=1.05) were much smaller. CONCLUSION Of a variety of socio-economic measures, housing tenure appears to be the strongest independent predictor of smoking in England, followed by social grade, educational qualifications and income. Employment status and car ownership have the lowest predictive power. © The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Research on Nicotine and Tobacco.BACKGROUND Mathematical models can be powerful policymaking tools. Simple, static models are user-friendly for policymakers. More complex, dynamic models account for time-dependent changes but are complicated to understand and produce. Under which conditions are static models adequate? We compare static and dynamic model predictions of whether behavioural disinhibition could undermine the impact of HIV pre-exposure prophylaxis (PrEP) provision to female sex workers in South Africa. METHODS A static model of HIV risk was developed and adapted into a dynamic model. Both models were used to estimate the possible reduction in condom use, following PrEP introduction, without increasing HIV risk. The results were compared over a 20-year time horizon, in two contexts at epidemic equilibrium and during an increasing epidemic. RESULTS Over time horizons of up to 5 years, the models are consistent. Over longer timeframes, the static model overstates the tolerated reduction in condom use where initial condom use is reasonably high ($\ge$50%) and/or PrEP effectiveness is low ($\le$45%), especially during an increasing epidemic. CONCLUSIONS Static models can provide useful deductions to guide policymaking around the introduction of a new HIV intervention over short-medium time horizons of up to 5 years. Over longer timeframes, static models may not sufficiently emphasise situations of programmatic importance, especially where underlying epidemics are still increasing. © The Author(s) 2020. Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.Glycans mediate a wide variety of biological roles via recognition by glycan-binding proteins (GBPs). Comprehensive knowledge of such interaction is thus fundamental to glycobiology. While the primary binding feature of GBPs can be easily uncovered by using a simple glycan microarray harboring limited numbers of glycan motifs, their fine specificities are harder to interpret. In this study, we prepared 98 closely related N-glycoforms that contain 5 common glycan epitopes which allowed the determination of the fine binding specificities of several plant lectins and anti-glycan antibodies. These N-glycoforms differ from each other at the monosaccharide level and were presented in an identical format to ensure comparability. With the analysis platform we used, it was found that most tested GBPs have preferences toward only one branch of the complex N-glycans, and their binding toward the epitope-presenting branch can be significantly affected by structures on the other branch. Fine specificities described here are valuable for a comprehensive understanding and applications of GBPs. © The Author(s) 2019. Published by Oxford University Press. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.OBJECTIVES Among all Organisation for Economic Cooperation and Development countries, South Korean older adults work until the latest age. We investigate the extent to which work experiences over the life course and family circumstances can be associated with older workers' incentives to remain in the labor force beyond the statutory pension age. We explore gender-specific patterns of labor force exit and labor force re-entry in later life. METHODS Using panel data of South Korean older workers and retirees from 2006 to 2016, we estimate multilevel discrete-time models with random effects to predict their labor force transition process that unfolds over time. RESULTS Results show that skilled manual workers are less likely to exit employment and more likely to re-enter the labor force. A longer history of self-employment is related to later retirement. The relationship between career characteristics and the risk of retirement is only significant for men. Late-aged employment transition among women appears to be more related to family conditions. Women who receive financial support from adult offspring are more likely to remain out of the labor force but this relationship is not pronounced among men. DISCUSSION Policies aimed at extending working lives need to provide various types of social support to older job seekers, especially those who had low-class jobs and those without family networks. © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.Advances in the understanding of how the immune system functions in response to diet have altered the way we think about feeding livestock and companion animals on both the short (weeks/months) and long-term (years) timelines; however, depth of research in each of these species varies. Work dedicated to understanding how immune function can be altered with diet has revealed additional functions of required nutrients such as vitamins D and E, omega-3 polyunsaturated fatty acids (PUFA), and minerals such as zinc, while feed additives such as phytogenics and probiotics add an additional layer of immunomodulating potential to modern diets. For certain nutrients such as vitamin D or omega-3 PUFA, inclusion above currently recommended levels may optimize immune function and reduce inflammation, while for others such as zinc, additional pharmacological supplementation above requirements may inhibit immune function. Also to consider is the potential to over-immunomodulate, where important functions such as clearance of microbial infections may be reduced when supplementation reduces the inflammatory action of the immune system. Continued work in the area of nutritional immunology will further enhance our understanding of the power of nutrition and diet to improve health in both livestock and companion animals. This review collects examples from several species to highlight the work completed to understand how nutrition can be used to alter immune function, intended or not. © The Author(s) 2020. Published by Oxford University Press on behalf of the American Society of Animal Science. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.Healthcare organisations vary in the degree to which they implement quality and safety systems and strategies. Large-scale cross-sectional studies have been implemented to explore whether this variation is associated with outcomes relevant at the patient level. The Deepening our Understanding of Quality in Australia (DUQuA) study draws from earlier research of this type, to examine these issues in 32 Australian hospitals. This paper outlines the key implementation and analysis challenges faced by DUQuA. Many of the logistical difficulties of implementing DUQuA derived from compliance with the administratively complex and time-consuming Australian ethics and governance system designed principally to protect patients involved in clinical trials, rather than for low-risk health services research. The complexity of these processes is compounded by a lack of organizational capacity for multi-site health services research; research is expected to be undertaken in addition to usual work, not as part of it. These isss will help to ensure that enthusiasm and engagement are established and maintained. ML198 nmr © The Author(s) 2020. Published by Oxford University Press in association with the International Society for Quality in Health Care. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.This paper examines the principles of benchmarking in healthcare and how benchmarking can contribute to practice improvement and improved health outcomes for patients. It uses the Deepening our Understanding of Quality in Australia (DUQuA) study published in this Supplement and DUQuA's predecessor in Europe, the Deepening our Understanding of Quality improvement in Europe (DUQuE) study, as models. Benchmarking is where the performances of institutions or individuals are compared using agreed indicators or standards. The rationale for benchmarking is that institutions will respond positively to being identified as a low outlier or desire to be or stay as a high performer, or both, and patients will be empowered to make choices to seek care at institutions that are high performers. Benchmarking often begins with a conceptual framework that is based on a logic model. Such a framework can drive the selection of indicators to measure performance, rather than their selection being based on what is easy to measure. A Donabedian range of indicators can be chosen, including structure, process and outcomes, created around multiple domains or specialties. Indicators based on continuous variables allow organizations to understand where their performance is within a population, and their interdependencies and associations can be understood. Benchmarking should optimally target providers, in order to drive them towards improvement. The DUQuA and DUQuE studies both incorporated some of these principles into their design, thereby creating a model of how to incorporate robust benchmarking into large-scale health services research. © The Author(s) 2020. Published by Oxford University Press in association with the International Society for Quality in Health Care. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.OBJECTIVE This study aimed to explore the associations between the organization-level quality arrangements, improvement and implementation and department-level safety culture and leadership measures across 32 large Australian hospitals. DESIGN Quantitative observational study, using linear and multi-level modelling to identify relationships between quality management systems and clinician safety culture and leadership. SETTING Thirty-two large Australian public hospitals. PARTICIPANTS Quality audit at organization level, senior quality manager at each participating hospital, 1382 clinicians (doctors, nurses and allied health professionals). MAIN OUTCOME MEASURES Associations between organization-level quality measures and department-level clinician measures of teamwork climate, safety climate and leadership for acute myocardial infarction (AMI), hip fracture and stroke treatment conditions. RESULTS We received 1332 valid responses from participants. The quality management systems index (QMSI, a questionnaire-s on clinician safety culture and leadership varied depending on the hospital department, suggesting that whilst there was some consistency on patient safety attitudes and behaviours throughout the organizations, there were also other factors at play. © The Author(s) 2020. Published by Oxford University Press in association with the International Society for Quality in Health Care. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.