Examining onsets of political instability in countries worldwide from 1955 to 2003, we
develop a model that distinguishes countries that experienced instability from those that …

Objective To estimate the incidence and lifetime risk of diagnosed symptomatic knee
osteoarthritis (OA) and the age at diagnosis of knee OA based on self‐reports in the US …

Psychologists, 1 sociologists, 2 3 demographers, 4 anthropologists, 5 and biologists6 have
actively promoted such an approach for many years. The interdisciplinary research area of …

Objectives Emerging evidence suggests contrasting health effects for leisure-time and
occupational physical activity. In this systematic review, we synthesized and described the …

The Concise Encyclopedia of Statistics presents the essential information about statistical
tests, concepts, and analytical methods in language that is accessible to practitioners and …

An editorial in this issue explains that the degree of biological interaction between risk
factors is measured as the deviation from additivity by the corresponding disease rates and …

Designing and Conducting Health Surveys is written for students, teachers, researchers, and
anyone who conducts health surveys. This third edition of the standard reference in the field …

This report describes the World Health Organization Health and Work Performance
Questionnaire (HPQ), a self-report instrument designed to estimate the workplace costs of …

Objective. To provide clinicians with a brief screening tool to predict accurately which
individuals may develop aberrant behaviors when prescribed opioids for chronic pain …

Altered bone structure and function contribute to the high rates of fractures in dialysis
patients compared to the general population. Fracture events may increase the risk of …