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“Scientifically proven?”


You will find here amount of information labeled “scientifically proven”. I would like to draw your attention to this term.


Nowadays, information is flooding. With a few clicks, we can learn, or get answers to our questions and this in countless areas. Internet…. an inexhaustible source of information but also, unfortunately, misinformation. Indeed, all what we can read is not always a reflection of the truth and it is often difficult to make up one’s mind given the number of people who call themselves “experts”.


Doubt! This is the first thing I want to tell you. Better to focus on information quality over quantity. Sharpen your critical sense, check the information the sources and do not be fooled by especially the “Experts” and other Doctor, Professor, PhD, President or of a particular society. Nowadays, it is easy to create a company and proclaim itself president.


So how to assess a studies or peace of information?


All scientific studies do not have the same value … There is a classification in scientific evidence, namely:


1-The expert opinion (expert opinion): It has no scientific value. This is a personal opinion of a person on a given topic. This reflection may be purely empirical and based on personal experience.


2-Case Report: As its name suggests, this is a detailed report of a case. In medicine the report contain usually symptoms, signs, diagnostic, treatment and follow-up of an individual patient. Low level of scientific evidence grade IV


3-Case-control study: In medicine it is a study that compares a patient with a disease or a condition (study) with a patient without disease or condition (control). Low level of scientific evidence Grade III


4-Cohort Studies: usually observational study. A study design where one or more samples (called cohorts) are followed prospectively and subsequent status evaluations with respect to a disease or outcome are conducted to determine which initial participants exposure characteristics (risk factors) are associated with it. Scientific presumption Grade IIa


5-Above, significantly, we find the Comparative randomized trials or randomized controlled trials (RTCs). A study in which people are allocated at random (by chance alone) to receive one of several clinical interventions. One of these interventions is the standard of comparison or control. The control may be a standard practice, a placebo (“sugar pill”), or no intervention at all. Grade Ib Scientific proof


6. Finally, the top of the hierarchy of evidence are: Meta analyzes or comprehensive systematic reviews of randomized controlled trials. A subset of systematic reviews; a method for systematically combining pertinent qualitative and quantitative study data from several selected studies to develop a single conclusion that has greater statistical power. Grade Ia Scientifically proven


For example I remember a heated debate that started on the theme of homeopathy. Each one was talking from personal experience when, annoyed I started reading the findings of a meta-analysis of serious Australian National Health and Medical Research Council, study that echoed other studies that I knew. (See links below).


My detractors, in this case the majority of the people gathered in the room, began to frantically search on their computers in order to give me a pleiad of articles touting the effectiveness of homeopathic treatments. Indeed, it is possible to find and this, in all areas, an expert opinion or a scientific study of low level to confirm or deny this or that belief.


This topic was so painful for most of the people that i couldn’t make them admit the existence of levels of scientific evidence and that a meta-analysis of quality randomized controlled trials remains well above any case study or expert opinion.


study here : nhmrc.gov.au ncbi.nlm.nih.gov and ncbi.nlm.nih.gov


I leave to the discretion of the reader the findings of this study.


Unfortunately we can not force anyone out of his ignorance of a subject. Any false certainty can keep you away from your goal which, in the field of medicine, can have very serious consequences. So be careful, rigorous and methodical in what you accept to believe.