Segregation and Childhood Blood Lead Levels in North Carolina.

Background And Objectives: Using a local measure of racial residential segregation, estimate the association between racial residential segregation and childhood blood lead levels between the early 1990s and 2015 in North Carolina.

Methods: This population-based observational study uses individual-level blood lead testing records obtained from the NC Department of Health and Human Services for 320 916 children aged <7 years who were tested between 1992 and 1996 or 2013 and 2015. NC childhood blood lead levels were georeferenced to the census tract.

SARS-CoV-2 Variant Tracking and Mitigation During In-Person Learning at a Midwestern University in the 2020-2021 School Year.

Importance: The COVID-19 pandemic led many higher education institutions to close campuses during the 2020-2021 academic year. As campuses prepared for a return to in-person education, many institutions were mandating vaccines for students and considering the same for faculty and staff.

Objective: To determine the association between vaccination coverage and the levels and spread of SARS-CoV-2, even in the presence of highly-transmissible variants and congregate living, at a midsized university in the US.

Relationship between pregnancy experience and the development of certain neuropsychiatric disorders in childhood.

A continuum of reproductive causality is postulated, extending from fetal deaths - abortion, stillbirth, and neonatal - through a descending gradient of brain damage manifested in neuropsychiatric disorders. The research and administrative public health implications of these findings and the concept of the continuum are briefly but provocatively discussed.

Declining trends in mortality from cerebrovascular disease at ages 10-65 years: a test of validity.

Recent reports of declining trends in mortality rates from cerebrovascular disease are based on underlying cause of death as stated on the death certificate, and may contain inaccuracies because death certificates are often completed without reference to all information in medical records, and because of changes in coding conventions and diagnostic fashion. This is a report of trends in mortality rates from cerebrovascular disease in Baltimore, Md., during 1950-1970 using data validated by reference to individual medical records from 19 hospitals.