Chronic pain is a common public health problem that has a detrimental impact on patient
health, quality of life (QoL), and function, and poses a substantial socioeconomic burden …

The psychosocial and functional consequences of chronic pain disorders have been well
documented as having significant effects on the experience of pain, presentation to health …

To standardize outcome reporting in clinical trials of patients with nonspecific low back pain,
an international multidisciplinary panel recommended physical functioning, pain intensity …

Purpose The content of and methods for collecting health information often vary across
settings and challenge the comparability of health information across time, individuals or …

Purpose. The pain VAS is a unidimensional measure of pain intensity (1), which has been
widely used in diverse adult populations, including those with rheumatic diseases (2-5) …

There is tremendous interpatient variability in the response to analgesic therapy (even for
efficacious treatments), which can be the source of great frustration in clinical practice. This …

The Visual Analogue Scale (VAS), Numerical Rating Scale (NRS), Verbal Rating Scale
(VRS), and the Faces Pain Scale-Revised (FPS-R) are among the most commonly used …

Many factors in the domains of mental, physical, and social health have been associated
with various ocular surface diseases, with most of the focus centered on aspects of dry eye …

This paper describes the psychometric properties of the PROMIS-pain interference (PROMIS-
PI) bank. An initial candidate item pool (n= 644) was developed and evaluated based on the …

In an attempt to explain how and why some individuals with musculoskeletal pain develop a
chronic pain syndrome, Lethem et al.(Lethem J, Slade PD, Troup JDG, Bentley G. Outline of …