Ecological studies look for associations between the occurrence of disease and exposure to known or suspected causes.
The unit of observation is the population or community and may be defined in various ways.
A group of children who have poor dental health are followed across time.
The habit of sleeping with a bottle of juice or water of the poor dental health group is compared to the sleep habits of a control group.
It aims to provide advice on how to develop the search protocol and the strategy to identify the most relevant evidence for a given research or clinical question.
It will also focus on how to search not only the published but also the unpublished literature using a number of online resources.A group of children are randomly selected from the general population (each child has the same likelihood of being selected as all the others).This group is then randomly divided into two groups (A and B).As you read, you'll encounter various ideas, disagreements, methods, and perspectives which can be hard to organize in a meaningful way.A synthesis matrix helps you record the main points of each source and document how sources relate to each other.International Journal of Medical Reviews is an official Journal of Baqiyatallah University of Medical Sciences (BMSU) and is adhering to ICMJE and COPE recommendation.The Submission and publication of review articles in International Journal of Medical Reviews is free of charges.Group B is given a bottle of water to sleep with at night.The effect on the children’s teeth is monitored for a set amount of time.International Journal of Medical Reviews (IJMR) is a quarterly, international, peer-review, and open access journal dedicated to various disciplines of medicine, biology and life sciences.The journal publishes all type of review articles, narrative review, meta-analysis, systematic review, mini-reviews and book review.