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Tx-discs--no effect against subjective health complaints: a randomised controlled study
A Baerheim1, J N Oren, B Bjorvatn
1Section for General Practice, Department for Public Health and Primary Health Care, University of Bergen, Kalfarveien 31, 5018 Bergen, Norway. anders.baerheim@isf.uib.no
Background:
Dowsers claim unhealthy effects of 'earth rays', and the producer of TX-discs claims that these discs may shield a person from the influence of 'earth rays', thereby relieving most illness in the person shielded.
Objectives:
To compare the effects of the TX-disc versus a placebo disc in patients with longstanding muscular-skeletal complaints.
Setting:
Self-recruited community living persons in the Bergen area, Western Norway.
Patients:
67 women and 13 men with longstanding muscular-skeletal complaints, recruited by advertisements in local newspapers.
Design:
A randomised and double-blinded controlled trial with a 6 months follow-up period.
Main Outcome Measurement:
The Subjective Health Complaints (SHC) questionnaire.
Results:
We found a substantial reduction on the mean SHC sub-scale scores of muscular-skeletal, pseudo-neurological, gastro-intestinal, and allergic complaints, mainly occurring from baseline to 6 weeks (28-45%, P < 0.05-0.001). There were however no statistically significant differences for these variables between the TX group and the placebo group at any time point.
Implications:
TX-discs used in accordance with the instructions had no clinically or statistically significant effect on muscular-skeletal pain, pseudo-neurological complaints, gastro-intestinal, or allergic complaints during this study.
