Publications by authors named "Yihong Bai"

Objective: The objective is to estimate the effect of provincial minimum wage increases in Canada on heavy drinking, binge drinking and average daily alcohol consumption.

Method: We estimate standard regression models by gender-age group with drinking behaviours as the dependent variables and the minimum wage among the independent variables. We employ the Canadian National Population Health Survey which began in 1994 and ended in 2011, a period comparable to that used by many U.

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Health care reforms introduced interprofessional team-based primary care to optimize access to health care and preventive services. In this context, preventive cancer screening represents an important measure as it is essential for the early detection of cancer and treatment. We investigated the effects of Family Health Teams (FHTs), an interprofessional team-based primary care practice setting, on cancer screening rates in Ontario, Canada.

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Variation in the timing of changes in the minimum wage across provinces in China is exploited using individual/household longitudinal survey data from 2010 to 2018 to examine potential health effects on working age individuals in households that are likely affected by minimum wages. Minimum wage increases are estimated to improve self-reported health particularly by reducing the incidence of self-reported overall poor health. There is also reasonably strong evidence that they reduce unhappiness and lower dissatisfaction with less robust evidence that they improve mental health and lower recent discomfort.

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Background: The UK legalised same-sex marriage in 2014. We examine whether same-sex marriage legalisation (SSML), an exogenous policy change, affected the health outcomes among ethnic minority lesbian, gay, bisexual and other (LGB+) individuals.

Methods: Using the UK Household Longitudinal Survey, we applied the Callaway and Sant'Anna difference-in-differences to compare physical and mental health across (a) ethnic LGB+ individuals (treatment group), (b) ethnic heterosexual individuals (control group 1) and (c) British white LGB+ individual (control group 2).

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Purpose: Patients with schizophrenia have a higher risk of cannabis use disorder and may be uniquely affected by the legalization of recreational cannabis. This study examined whether cannabis legalization led to changes in acute care utilization among patients with schizophrenia.

Method: Using linked health administrative data, we included adult patients with schizophrenia in Ontario from October 2015 to May 2021 (n = 121,061).

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Objectives: During COVID-19, sexual minority groups may have experienced heightened mental health challenges, amplified by unique stressors and the effects of pandemic-related restrictions. This study investigates the differential impact of the pandemic on mental health across sexual orientations, leveraging population-representative data to explore these disparities.

Study Design: Prospective cohort design.

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Backgrounds: In the context of increasing hate crimes, legislative challenges, and anti-LGBTQ + sentiment, we conducted the first study that comprehensively examined long-term mental health disparities across sexual orientations in the UK from 2010 to 2021. Prior studies predominantly relied on cross-sectional or limited longitudinal designs, thus failing to capture evolving trends over a decade and providing crucial insights into the dynamics of mental health challenges faced by sexual minorities, essential for devising targeted public health interventions and policies.

Methods: Waves 2-12 of the UK Longitudinal Household Survey for adults (n = 52,591) were used.

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South Korea's 2018 minimum wage hike was examined for its impact on potential alcohol use disorders among affected individuals, using data from the Korea Welfare Panel Study (2015-2019). The study sample was restricted to workers aged 19-64 employed over the study years. The treatment group was identified as those below minimum wages, and the control group as those earning more than minimum wages in 2016-2017 (n=3,117 control, n=578 treatment).

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Objectives: Recent research has focused on the effects of legalization on cannabis-related emergency department visits, but the considerable healthcare costs of cannabis-related hospitalizations merit attention. We will examine the association between recreational cannabis legalization and cannabis-related hospitalizations.

Methods: A cohort of 3,493,864 adults from Alberta was examined (October 2015-May 2021) over three periods: pre-legalization, post-legalization of flowers and herbs (phase one), and post-legalization of edibles, extracts, and topicals (phase two).

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After some initial controversy, an inverted U-shape relationship between the consumption of alcohol and earnings seems to be an established result, at least in North America. It has been dubbed a "drinking premium", at least in the lower portion of the consumption curve. It is still unclear, perhaps even counter-intuitive, why such a drinking premium exists and the literature suggests it is not causal but results rather from selection effects.

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Background: Poverty is associated with intimate partner violence (IPV), but whether exogenous increases in wage could reduce IPV among low-income women is still unclear. We examined whether the 2018 minimum wage hike led to a reduction in IPV risk among women.

Methods: Using the 2015-2019 Korean Welfare Panel Study, we employed a difference-in-differences (DID) approach to assess the effect of the minimum wage hike on IPV.

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Background: While there's a growing body of research studying the health effects of minimum wage increases, evidence of its impact on smoking is inconsistent. Using nationally representative statistics, our quasi-experimental study examines the impacts of South Korea's 2018 minimum wage increase on smoking patterns, offering a distinctive context due to the significant wage growth and the country's permissive smoking culture.

Methods: Using the Korean Welfare Panel Study (KOWEPS), we conducted a difference-in-differences analysis using two-way fixed effect (TWFE) and Callaway and Sant'Anna Difference-in-differences (CSDID) methods.

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Quantum dot (QD)-based RGB micro light-emitting diode (μ-LED) technology shows immense potential for achieving full-color displays. In this study, we propose a novel structural design that combines blue and quantum well (QW)-intermixing ultraviolet (UV)-hybrid μ-LEDs to achieve high color-conversion efficiency (CCE). For the first time, the impact of various combinations of QD and TiO concentrations, as well as thickness variations on photoluminescence efficiency (PLQY), has been systematically examined through simulation.

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Intrinsically stretchable conductors play key roles in the dynamic interfacing of electronic devices with soft human tissues. However, it is difficult to simultaneously achieve high electrical conductivity and mechanical stretchability. Here, highly stretchable and conductive thin film electrodes are prepared by combining PEDOT:PSS and a mutually plasticized polymer dopant.

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Objective: We examine the role of social capital in intention to take the vaccine at the end of the first wave of the COVID-19 pandemic.

Methods: This study uses observational, cross-sectional data from the Ontario sample of the fall 2020 Canadian Community Health Survey (CCHS), a representative sample of the population with added questions relative to symptoms of COVID-19 and intentions to get vaccinated. Questions on social capital were asked to respondents from Ontario only, yielding a sample of 6516.

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Intrinsically stretchable bioelectronic devices based on soft and conducting organic materials have been regarded as the ideal interface for seamless and biocompatible integration with the human body. A remaining challenge is to combine high mechanical robustness with good electrical conduction, especially when patterned at small feature sizes. We develop a molecular engineering strategy based on a topological supramolecular network, which allows for the decoupling of competing effects from multiple molecular building blocks to meet complex requirements.

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