Nation-wide cohort of device-measured sedentary time and physical activity in the USA-the Cancer Prevention Study-3 (CPS-3) Accelerometry Substudy: cohort profile.

Purpose: This paper describes the data collection and management methods for the Cancer Prevention Study-3 (CPS-3) Accelerometry Substudy, a nested cohort of device-based physical activity and sedentary time data.

Participants: US-based CPS-3 participants (initially enrolled 2006-2013) who completed the 2018 follow-up survey and had a valid email address were invited to the Accelerometry Substudy (n=109 780). Among the 23 111 participants who registered and were shipped an ActiGraph GT3X+ accelerometer, 21 219 participants returned the device with a complete wear log (91.

The effectiveness of unimodality organ preservation surgical vs organ preservation radiotherapy for early hypopharyngeal cancer: a systematic review protocol.

Objective: Our aim is to determine the comparative effectiveness of unimodality organ preservation surgery versus radiotherapy on oncological and functional outcomes in patients with early hypopharyngeal cancer.

Introduction: Early hypopharyngeal cancer is difficult to detect and therefore rarely diagnosed, as patients are often asymptomatic. Radiotherapy is considered the main treatment, although this modality has been compared to the previously used open surgical approach, which may not reflect current surgical options.

Is transoral robotic surgery useful as a salvage technique in head and neck cancers: a systematic review and meta analysis.

Background: Residual, recurrent, and second primary head and neck cancers are on the rise. This is largely driven by a younger age at diagnosis and increasingly targeted chemoradiotherapy options. Salvage surgery remains the only curative intent option in this cohort of patients.

Polygenic score distribution differences across European ancestry populations: implications for breast cancer risk prediction.

Background: The 313-variant polygenic risk score (PRS) provides a promising tool for clinical breast cancer risk prediction. However, evaluation of the PRS across different European populations which could influence risk estimation has not been performed.

Methods: We explored the distribution of PRS across European populations using genotype data from 94,072 females without breast cancer diagnosis, of European-ancestry from 21 countries participating in the Breast Cancer Association Consortium (BCAC) and 223,316 females without breast cancer diagnosis from the UK Biobank.

A review of clinical ethics consultations in a regional healthcare system over a two-year timeframe.

Background: Clinical Ethics Consultations (CECs) are used by healthcare systems to offer healthcare practitioners a structured level of support to approach ethical questions. The objective of this study was to detail the elements of surveyed CECs and offer guidance in the approach to future ethics consultations at a regional healthcare system.

Methods: This cohort study has a qualitative and quantitative retrospective approach, surveying ethics consultations through the dates of 4/27/22 to 4/26/24.