This paper develops a prognostic approach to defining chronic back pain. Possible and
probable chronic back pain were defined, respectively, by a 50% and an 80%(or greater) …

A novel prognostic approach to defining chronic pain was developed in a US primary care
low back pain population, using a combination of information about pain history, current …

A prognostic approach to defining chronic pain has been proposed as an alternative to
traditional definitions based on retrospective duration of pain. While this new approach …

Improved information on the natural history of back pain is needed to enable doctors and
their patients to understand the likely course of back pain and to evaluate whether …

Chronic pain has been traditionally defined by pain duration, but this approach has limited
empirical support and does not account for chronic pain's multi-dimensionality. This study …

Low back pain is considered to fluctuate over time, and related prognostic factors may
behave similarly, therefore classification of prognosis may be affected by timing of …

Back pain is common and many people experience long-term problems, yet little is known
about what prognostic factors predict long-term outcomes. This study's objective was to …

Efforts to examine the process and risk of developing chronic back pain have relied
generally upon retrospective study of individuals with already established pain. In an …

If persons at risk of developing chronic pain could be identified early in a pain episode,
treatment could be tailored on the basis of risk. Responses to psychophysical tests differ in …

Our knowledge of the prevalence, impact, and outcomes of chronic pain in the general
population is predominantly based on studies over relatively short periods of time. The aim …