Interstep Variations of Stairways and Associations of High-Contrast Striping and Fall-Related Events: Observational Study.

Background: Interstep variations in step riser height and tread depth within a stairway could negatively impact safe stair negotiation by decreasing step riser height predictability and, consequently, increasing stair users' fall risk. Unfortunately, interstep variations in riser height and depth are common, particularly in older stairways, but its impact may be lessened by highlighting steps' edges using a high-contrast stripe on the top front edge of each step.

Objective: This study aimed to determine (1) if fall-related events are associated with greater interstep riser height and depth variations and (2) if such fall-related events are reduced in the presence of contrast-enhanced step edges compared with a control stairway.

Self-Reported Social Determinants of Health and Area-Level Social Vulnerability.

Importance: Many health care systems are investing resources in identifying social determinants of health (SDoH) needs and facilitating interventions among the populations they serve. Because self-reported SDoH information is lacking, area-level measures are often used to estimate needs and direct resources.

Objective: To describe the large-scale deployment of SDoH assessments by a health system and determine the extent to which self-reported SDoH needs identified therein are associated with census tract-level social vulnerability measured using the Social Vulnerability Index (SVI).

Association between diseases of despair and atherosclerotic cardiovascular disease among insured adults in the USA: a retrospective cohort study from 2017 to 2021.

Objectives: To assess associations between diseases of despair (DoD) and incident atherosclerotic cardiovascular disease (ASCVD) among insured adults in the USA.

Design: Retrospective cohort study.

Setting: Highmark insurance claims data in the USA from 2017 to 2021.