Co-Designing an Initiative to Increase Shared Access to Older Adults' Patient Portals: Stakeholder Engagement.

Background: The patient portal is a widely available secure digital platform offered by care delivery organizations that enables patients to communicate electronically with clinicians and manage their care. Many organizations allow patients to authorize family members or friends-"care partners"-to share access to patient portal accounts, thus enabling care partners to receive their own identity credentials. Shared access facilitates trilateral information exchange among patients, clinicians, and care partners; however, uptake and awareness of this functionality are limited.

Protective association of colonoscopy against proximal and distal colon cancer and patterns in interval cancer.

Background: The protective effect of colonoscopy against proximal colorectal cancer is variable and depends on the detection and complete removal of precancerous polyps.

Objective: To estimate the efficacy of colonoscopy in a medical center with open-access screening colonoscopy since 1998.

Design: Nested case-control study with incidence density sampling.