Intervention Study

An Intervention Study is a comparison of the results of a study conducted in two or more groups of patients who were deliberately exposed to different conditions (usually given different treatments or different methods of preventing the development of disease, such as vaccination with different vaccines). Whenever possible, all individuals taking part in the study should be randomized into groups according to which treatment they will receive; one such group (the control) should not receive any active treatment (random control).

Ideally, none of the patients and none of those who evaluate the results obtained during this examination should know what treatment is prescribed for each specific patient (blind study), nor should the doctor know about the treatment given to each specific patient (double study blind); In addition, over time, it is necessary to change the current treatments so that each control group tries several possible treatments (crossover study).



“Intervention Studies: An Overview”

Intervention studies are a common method of studying the effects of different treatments or prevention methods on patients. In this type of study, two or more groups of patients are compared, with each group being intentionally placed in different conditions. The groups may be assigned different treatments, or may be given different methods of prevention for diseases, such as being vaccinated with different vaccines.

In any intervention study, it is important to ensure that all participants are randomly divided into groups based on the treatment they will receive. One group should not receive any active treatment (control group), while the other group is given the active treatment. Ideally, neither the patients nor those evaluating the results of the study should know which treatment each patient is receiving (blinded study), and neither should the doctor (double-blinded study).

With time, the treatment methods may need to be changed to allow each control group to try different treatment options (crossover study). It is also important to monitor the progress of the patients and adjust the treatment accordingly.

Overall, intervention studies provide valuable information about the effectiveness of different treatments and prevention methods, and can help improve healthcare practices and outcomes for patients.



Interventional research is the main method for researching the effect of treatment on a patient's health.

The purpose of an intervention study is to determine the effectiveness and safety of an intervention, which may include changes in lifestyle, exercise, nutrition, and for some diseases, treatment includes the use of medications. This approach differs from other research methods in that this particular strategy can lead to results in the form of changes in health status or prevention of disease complications.

When carrying out such work, an intervention is used that is of a type that has a high probability of producing a positive result. With this in mind, the key point is this: this approach is the basis for making important recommendations within medical research. According to statistics, only one third of clinical cases identified in practice are recorded in connection with the successful use of previously developed methods. The most effective is the case when, during a calendar year, at least thirty percent of all recorded statistical data indicates high-quality prevention of complications or the cure of a fairly large number of patients. The entire algorithm is based on the principle in which patients are classified into two groups: test and control. Patients in the study group receive one or another type of intervention, while patients in the control group do not receive it. Ideally, by comparing the results later, it will be possible to identify the real effect of the intervention.

This method is actively used in practice by doctors, because only it helps to obtain more knowledge about the interaction of medical procedures and physiological processes occurring in the patient’s body. It is the effectiveness of the use of drugs and procedures that is determined by this approach and statistical data.