Abstract Standard causal mediation analysis decomposes the total effect into a direct effect and an indirect effect in settings with only one single mediator. Under the settings with multiple mediators, all mediators are often treated as one single block of mediators. The effect mediated by a...

Background: Vitamin D deficiency during pregnancy has been associated with increased risk of complications and adverse perinatal outcomes. We evaluated seasonal variation of 25-hydroxyvitamin D [25(OH)D] among pregnant women, focusing on patterns and determinants of variation. Methods: Data came...

The purpose of this paper was to investigate psychometric properties of the newly proposed Flourish Index (FI) and Secure Flourish Index (SFI). Data were obtained from the Health and Well-Being Survey – conducted in June and July 2017, with responses from 4210 residents of North Carolina, USA....