The objective was to document the operational definitions applied in epidemiological
studies of chronic pain and to examine whether pain definitions and other methodological …

Chronic widespread pain (CWP) is common and associated with poor general health. There
has been no attempt to derive a robust prevalence estimate of CWP or assess how this is …

BACKGROUND: The epidemiology of chronic pain is poorly understood due to a paucity of
longitudinal studies limiting the ability to develop prevention strategies for a condition …

Objectives There is little consensus regarding the burden of pain in the UK. The purpose of
this review was to synthesise existing data on the prevalence of various chronic pain …

BACKGROUND: While chronic pain appears to be relatively common, published population
prevalence estimates have been highly variable, partly due to differences in the definition of …

Chronic pain is a major cause of distress, disability, and work loss, and it is becoming
increasingly prevalent through the general move towards an ageing population, which …

Methods for classifying chronic pain in population studies are highly variable, and
prevalence estimates ranges from 11% to 64%. Limited knowledge about the persistence of …

Chronic pain (CP) is prevalent worldwide. Current reports on its prevalence in developing
countries are heterogeneous, and to date, there is no quantitative synthesis providing a …

Epidemiological research should have as one of its ultimate goals the development of
effective healthcare interventions, through an understanding of the distribution and …

Chronic pain (CP) is an unpleasant sensory and emotional experience associated with
actual or potential tissue damage that persists beyond the expected time frame for healing or …