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In response to the opioid epidemic in the United States, the federal and state governments have initiated various public health responses to mitigate the problem. Among others, Drug-Induced Homicide Laws (DIHL) have been introduced to disrupt opioid supply by imposing unconventionally punitive sanctions against sales and distribution. The purpose of this study was to examine whether DIHL had an impact on opioid-related deaths, while controlling for other laws and socioeconomic indices. A dynamic panel model was used with cases from 92 counties across 10 states and the District of Columbia between 2013 and 2018. The findings suggest that DIHL implementation has curtailed the rate of opioid mortality. Supply-interruption approaches may have merits and should be further evaluated.

Laboratory diagnostics play an essential role in pandemic preparedness. In January 2020, the first US case of COVID-19 was confirmed in Washington State. At the same time, the Washington State Public Health Laboratory (WA PHL) was in the process of building upon and initiating innovative preparedness activities to strengthen laboratory testing capabilities, operations, and logistics. The response efforts of WA PHL, in conjunction with the Centers for Disease Control and Prevention, to the COVID-19 outbreak in Washington are described herein—from the initial detection of severe acute respiratory syndrome coronavirus 2 through the subsequent 2 months. Factors that contributed to an effective laboratory response are described, including preparing early to establish testing capacity, instituting dynamic workforce solutions, advancing information management systems, refining laboratory operations, and leveraging laboratory partnerships. We also report on the challenges faced, successful steps taken, and lessons learned by WA PHL to respond to COVID-19. The actions taken by WA PHL to mount an effective public health response may be useful for US laboratories as they continue to respond to the COVID-19 pandemic and may help inform current and future laboratory pandemic preparedness activities.

This study analyzed the association between the implementation of the Tennessee Fetal Assault Law (TFAL), which allowed prosecutors to incarcerate people who used substances during pregnancy, and out-of-state births among residents of Tennessee.The main data source is vital records on singleton births in hospitals to people aged 15-44 years during the period January 2010 to June 2016. We include data from 33 states and the District of Columbia where birth certificate data are comparable over this time period. The statistical significance of the difference in outcomes observed before and after TFAL implementation was tested using a difference-in-differences analysis between Tennessee and the comparison group.After TFAL implementation, the odds of having an out-of-state birth increased by 13% for residents of Tennessee (odds ratio, 1.13; 95% confidence interval, 1.09-1.16) relative to residents of the comparison states. When we adopted different thresholds for travel distances to the birth hospital, the odds of residents of Tennessee having an out-of-state birth more than 75 miles away increased by 17% (odds ratio, 1.17; 95% confidence interval, 1.13-1.21) after TFAL implementation.The results of this study suggest that the implementation of a policy allowing incarceration of people who use substances during pregnancy is associated with an increase in out-of-state births, potentially putting pregnant people and their infants at greater risk.

Though they have comparable prevalence of mental illness, American racial and ethnic minorities are less likely to receive mental health services than white Americans. Minorities are often part of racial and ethnic social networks, which may affect mental health service utilization in two ways. While these networks can encourage service utilization by working as a channel of knowledge spillover and social support, they can also discourage utilization by stigmatizing mental illness. This study examined the association of racial and ethnic social networks with mental health service utilization and depression diagnosis in the USA. Using the 2012 Behavioral Risk Factor Surveillance System (BRFSS) data, a multilevel mixed-effect generalized linear model was adopted, controlling for predisposing, need, and enabling factors of mental health service utilization. The association of racial and ethnic social networks with mental health service utilization and depression diagnosis was significant and negative among African Americans. Despite having a comparable number of bad mental health days, the association was insignificant among Hispanic, Asian, and non-Hispanic white respondents. An African American living in a county where all residents were African American was less likely to utilize mental health services by 84.3-86.8% and less likely to be diagnosed with depression by 76.0-84.8% than an African American living in a county where no residents were African American. These results suggest racial and ethnic social networks can discourage mental health service utilization and should be engaged in efforts to improve mental health, particularly among African American communities in the USA.

As health care costs and demands for health care services have been rising for decades in the United States, health care reforms have focused on increasing the performance of health care delivery. Competition has been considered as a mechanism to improve the quality of health care services and operational performance. Evidence on health care performance and market competition, however, has not sufficiently been reported to track its progress. The purpose of this study is twofold: First, we measure hospital performance over nine years, using the Malmquist Productivity Index. Second, we examine the impact of market competition on hospital efficiency in Pennsylvania, using a two-stage estimation procedure. The bootstrapped Malmquist productivity indices resulted in noticeable performance improvements. However, no steady performance trends were found during the course of nine years. In examining the impact of market competition, the bootstrapped panel Tobit analysis was applied after computing the efficiency scores with Data Envelopment Analysis. The results of the Tobit model found that hospitals run more efficiently in less competitive regions than in more competitive regions. The finding implies that hospitals underperforming in productivity growth should benchmark best practices of efficient hospitals to improve their productivity level. Another implication is that market competition would not be the best approach to effect the improvement of hospital efficiency in delivering health care services.

We investigate the unsaturated resin flow behavior in a dual scale porosity preform by observing the pressure distribution and the void content. The experimental data show that the pressure profile in the unsaturated flow is nonlinear with positive curvature whereas that in the saturated flow is linear as expected from the classical Darcy's law. To address this issue, the governing equation for mass conservation is modified by introducing a mass sink term. Eventually, it has been found that the discrepancy between the unsaturated and saturated permeability values comes from a misinterpretation of the pressure gradient at the flow front in the unsaturated permeability measurement method and the permeability for a given preform is a unique value regardless of measurement method or flow condition. Based on this investigation, the ratio of unsaturated permeability to saturated permeability is represented as a dimensionless number in terms of void content. © The Author(s) 2016.