Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Flow-diagram of the study. PDQ: PainDETECT questionnaire; DN4: Douleur neuropatique 4 questions; DRI : Disability rating index; HADS: Hospital anxiety depression scale; RAND-36 : RAND 36-item health survey; PAS: Pain attribution scale; QST: Quantitative sensory testing; PGIC: Patients global impression of change.
