Health system approaches and experiences implementing the 4Ms: Insights from 3 early adopter health systems.

Background: Redesigning the healthcare system to consistently provide effective and tailored care to older adults is needed. The 4Ms (What Matters, Mobility, Medication, and Mentation) offer a framework to guide health systems' efforts to deliver Age-Friendly care. We use an implementation science framework to characterize and assess real-world implementation experiences with the 4Ms across varied health systems.

Dispersion in the hospital network of shared patients is associated with less efficient care.

Background: There is growing recognition that health care providers are embedded in networks formed by the movement of patients between providers. However, the structure of such networks and its impact on health care are poorly understood.

Purpose: We examined the level of dispersion of patient-sharing networks across U.

Association Between Medicare Policy Reforms and Changes in Hospitalized Medicare Beneficiaries' Severity of Illness.

Importance: The measured severity of illness of hospitalized Medicare beneficiaries has increased. Whether this change is associated with payment reforms, concentrated among hospitalizations with principal diagnoses targeted by payment reform, and reflective of true increases in severity of illness is unknown.

Objectives: To assess whether the expansion of secondary diagnosis codes in January 2011 and the incentive payments for health information technology under the US Health Information Technology for Economic and Clinical Health Act were associated with changes in measured severity of illness and whether those changes are reflective of true increases in underlying patient severity.