Blinding and Randomisation

The patients can only be blinded with respect to the acupuncture treatment given. Blinding

with respect to the standard therapy is not possible. The investigator cannot be blinded. The

WOMAC, the global patient assessment, and the SF12 are measured during a telephone interview

performed by a call centre. The person performing the interview is blinded with respect

to the therapy of the patient. Patients blindness to the mode of acupuncture is assessed after

the last follow up by asking the patient to guess their group assignment. Additionally, patients

are asked directly after the intervention phase for the quantity of care they have received during

the treatments.

The 1:1:1 block-randomisation, stratified by the trial centre, is performed from an independent

centre via fax.

(aus:

Study protocol

Efficacy and safety of acupuncture for chronic pain caused by gonarthrosis: A study protocol of an ongoing multi-centre randomised controlled clinical trial [ISRCTN27450856]
Konrad Streitberger1 , Steffen Witte2 , Ulrich Mansmann2 , Christine Knauer2 , Jürgen Krämer3 , Hanns-Peter Scharf4 and Norbert Victor2
1Clinic of Anaesthesiology, University of Heidelberg, Im Neuenheimer Feld 110, D-69120 Heidelberg, Germany
2Institute for Medical Biometry and Informatics, University of Heidelberg, Im Neuenheimer Feld 305, D-69120 Heidelberg, Germany
3Clinic of Orthopaedics, University of Bochum, Josefs-Krankenhaus, Gudrunstraβe 5, D-44791 Bochum, Germany
4Clinic of Orthopaedics, University of Heidelberg, Mannheim, Theodor-Kutzer-Ufer, D-68167 Mannheim, Germany

BMC Complementary and Alternative Medicine 2004, 4:6     doi:10.1186/1472-6882-4-6

The electronic version of this article is the complete one and can be found online at: http://www.biomedcentral.com/1472-6882/4/6

Received

 

20 February 2004

Accepted

 

24 March 2004

Published

 

24 March 2004


© 2004 Streitberger et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL.


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