Quality Control

Publication Title: 
International Journal of Epidemiology

BACKGROUND: To investigate the methodological quality of randomized controlled trials in three areas of complementary medicine. METHODS: The methodological quality of 207 randomized trials collected for five previously published systematic reviews on homeopathy, herbal medicine (Hypericum for depression, Echinacea for common cold), and acupuncture (for asthma and chronic headache) was assessed using a validated scale (the Jadad scale) and single quality items.

Author(s): 
Linde, K.
Jonas, W. B.
Melchart, D.
Willich, S.
Publication Title: 
Journal of Clinical Epidemiology

We investigated the influence of indicators of methodological quality on study outcome in a set of 89 placebo-controlled clinical trials of homoeopathy in three different ways: (1) The results of studies meeting single criteria (explicit statement of random allocation, allocation concealment, double-blinding, completeness of follow-up) of methodological quality were compared with those of studies not meeting the criteria in univariate and multivariate analyses; (2) The results of studies scoring above and below predefined scores in two quality assessment scales were compared; (3) Primary st

Author(s): 
Linde, K.
Scholz, M.
Ramirez, G.
Clausius, N.
Melchart, D.
Jonas, W. B.
Publication Title: 
Homeopathy: The Journal of the Faculty of Homeopathy

BACKGROUND: The claims made for the clinical effects of homeopathy are controversial. The results of several meta-analyses of clinical trials are positive, but they fail in general to highlight specific medical conditions that respond well to homeopathy.

Author(s): 
Mathie, R. T.
Publication Title: 
Forschende Komplementarmedizin Und Klassische Naturheilkunde = Research in Complementary and Natural Classical Medicine

BACKGROUND: We aimed to describe the approaches and characteristics of systematic reviews on three major complementary therapies and to assess their methodological quality. METHODS: Systematic reviews of clinical trials of acupuncture, herbal medicines, and homeopathy were identified from a database developed for the Cochrane Collaboration Complementary Medicine Field. Information on conditions, interventions, methods, results, and conclusions was extracted using a pre-tested form; methodological quality was assessed using the Oxman scale.

Author(s): 
Linde, K.
ter Riet, G.
Hondras, M.
Melchart, D.
Willich, S. N.
Publication Title: 
Forschende Komplementarmedizin (2006)

When homeopathy is tested in clinical trials, understanding and appraisal are likely to be improved if published reports contain details of prescribing strategies and treatments. An international Delphi panel was convened to develop consensus guidelines for reporting homeopathic methods and treatments. The panel agreed 28 treatment- and provider-specific items that supplement the CONSORT (Consolidated Standards of Reporting Trials) Statement items 2, 3, 4 and 19. The authors recommend these for adoption by authors and journals when reporting trials of homeopathy.

Author(s): 
Dean, Mike Emmans
Coulter, Morag K.
Fisher, Peter
Jobst, Kim
Walach, Harald
Delphi Panel of the CONSORT Group
Publication Title: 
Complementary Therapies in Medicine

OBJECTIVE: Systematic assessment of the in vitro research on high potency effects. METHOD: Publications of experiments were collected through databases, experts, previous reviews, citation tracking. INCLUSION CRITERIA: stepwise agitated dilutions <10(-23); cells or molecules from human or animal. Experiments were assessed with the modified SAPEH score. RESULTS: From 75 publications, 67 experiments (1/3 of them replications) were evaluated. Nearly 3/4 of them found a high potency effect, and 2/3 of those 18 that scored 6 points or more and controlled contamination.

Author(s): 
Witt, Claudia M.
Bluth, Michael
Albrecht, Henning
Weisshuhn, Thorolf E. R.
Baumgartner, Stephan
Willich, Stefan N.
Publication Title: 
International Journal of Epidemiology

BACKGROUND: To investigate the methodological quality of randomized controlled trials in three areas of complementary medicine. METHODS: The methodological quality of 207 randomized trials collected for five previously published systematic reviews on homeopathy, herbal medicine (Hypericum for depression, Echinacea for common cold), and acupuncture (for asthma and chronic headache) was assessed using a validated scale (the Jadad scale) and single quality items.

Author(s): 
Linde, K.
Jonas, W. B.
Melchart, D.
Willich, S.
Publication Title: 
The Journal of Orthopaedic and Sports Physical Therapy

STUDY DESIGN: Systematic review of the literature. OBJECTIVES: To develop a grading scale to judge the quality of randomized clinical trials (RCTs) and conduct a systematic review of the published RCTs that assess nonoperative treatments for patellofemoral pain syndrome (PFPS). BACKGROUND: Systematic reviews of the quality and usefulness of clinical trials allow for efficient synthesis and dissemination of the literature, which should facilitate clinicians' efforts to incorporate principles of evidence-based practice in the clinical decision-making process.

Author(s): 
Bizzini, Mario
Childs, John D.
Piva, Sara R.
DeLitto, Anthony
Publication Title: 
Forschende Komplementarmedizin Und Klassische Naturheilkunde = Research in Complementary and Natural Classical Medicine

BACKGROUND: We aimed to describe the approaches and characteristics of systematic reviews on three major complementary therapies and to assess their methodological quality. METHODS: Systematic reviews of clinical trials of acupuncture, herbal medicines, and homeopathy were identified from a database developed for the Cochrane Collaboration Complementary Medicine Field. Information on conditions, interventions, methods, results, and conclusions was extracted using a pre-tested form; methodological quality was assessed using the Oxman scale.

Author(s): 
Linde, K.
ter Riet, G.
Hondras, M.
Melchart, D.
Willich, S. N.
Publication Title: 
Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae

OBJECTIVE: To evaluate the quality of methodology and reporting of randomized controlled trials of acupuncture for obesity worldwide. METHODS: Collecting all the randomized controlled trials of acupuncture for obesity worldwide by systematically searching without language limitation. The quality of methodology and reporting was evaluated by the quality criteria recommended by Cochrane handbook and CONSORT (consolidate standards of reporting trial) and STRICTA (standard for reporting interventions in controlled trials of acupuncture) checklists.

Author(s): 
Liu, Xue-Mei
Zhang, Ming-Ming
Du, Liang

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