Is shoulder pain for three months or longer correlated with depression, anxiety, and sleep disturbance?

The Pittsburgh sleep quality index: A new instrument for psychiatric practice and research

Daniel J. Buysse, Charles F. Reynolds, T. H. Monk et al. · Psychiatry Research · 1989 · 34.7K citations

Medicine, Psychiatry, Psychology +16

Test–retest reliability and validity of the Pittsburgh Sleep Quality Index in primary insomnia

Jutta Backhaus, Klaus Junghanns, Andreas Broocks et al. · Journal of Psychosomatic Research · 2002 · 1.8K citations

Medicine, Psychiatry, Psychometrics +14

A standardized method for the assessment of shoulder function

Robin R. Richards, Kai‐Nan An, Louis U. Bigliani et al. · Journal of Shoulder and Elbow Surgery · 1994 · 1.7K citations

Medicine, Orthopaedic Surgery, Orthopedic Surgery +14

Normative data for the HADS from a large non‐clinical sample

Joanne Crawford, Julie D. Henry, Caroline Crombie et al. · British Journal of Clinical Psychology · 2001 · 821 citations · Full text

Social Sciences, Psychiatry, Psychology +17

Chronic pain and depression: Does the evidence support a relationship?

Joan M. Romano, Judith A. Turner · Psychological Bulletin · 1985 · 736 citations

Nursing, Psychiatry, Psychology +14