Peer-reviewed Meta-analysis Observational study People What do these mean?
Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts.
Meta-analysis: This type of study involves using statistics to combine the data from multiple previous studies to give an overall result. The reliability of a meta-analysis depends on both the quality and similarity of the individual studies being grouped together.
Observational study: A study in which the subject is observed to see if there is a relationship between two or more things (eg: the consumption of diet drinks and obesity). Observational studies cannot prove that one thing causes another, only that they are linked.
People: This is a study based on research using people.