The Your Disease Risk Index for colorectal cancer is an inaccurate risk stratification tool for advanced colorectal neoplasia at screening colonoscopy.

Tailoring the use of screening colonoscopy based on the risk of advanced colorectal neoplasia (ACN) could optimize the cost-effectiveness of colorectal cancer (CRC) screening. Our goal was to assess the accuracy of the Your Disease Risk (YDR) CRC risk index for stratifying average risk patients into low- versus intermediate/high-risk categories for ACN. The YDR risk assessment tool was administered to 3,317 asymptomatic average risk patients 50 to 79 years of age just before their screening colonoscopy.

Adolescent obesity and maternal and paternal sensitivity and monitoring.

Objective: To determine if adolescent obesity is associated with parenting characterized by lower sensitivity and lower monitoring of adolescent activities.

Methods: We used data from 744 adolescents in the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development. Height and weight were measured at age 15½ years and obesity defined as body mass index ≥ 95th percentile for age and sex.

Randomized controlled trial of physical activity counseling for older primary care patients.

Background: Regular physical activity reduces the risk for chronic diseases among older adults. Older adults are likely to be seen by primary care clinicians who can play a role in promoting physical activity among their patients.

Design: In this randomized controlled trial (1998-2003; data analyzed 2004-2005), we compared the effects of brief advice to exercise from a clinician supplemented by telephone-based counseling by health educators (extended advice) to brief advice from a clinician alone (brief advice).

Late Life Function and Disability Instrument: II. Development and evaluation of the function component.

Background: Self-reported capability in physical functioning has long been considered an important focus of research for older persons. Current measures have been criticized, however, for conceptual confusion, lack of sensitivity to change, poor reproducibility, and inability to capture a wide range of upper and lower extremity functioning.

Methods: Using Nagi's disablement model, we wrote physical functioning questionnaire items that assessed difficulty in 48 common daily tasks.

Late life function and disability instrument: I. Development and evaluation of the disability component.

Background: Efforts to evaluate the effectiveness of clinical and community-based interventions designed to impact late-life disability have been hindered significantly by limitations in current instrumentation. More conceptually sound and responsive measures of disability are needed.

Methods: Applying Nagi's disablement model, we wrote questionnaire items that assessed disability in terms of frequency and limitation in performance of 25 life tasks.