For each research study in your systematic review, you’ll need quantitative information that paints a clear picture of the people who participated in the research.

Here’s some of the data you should gather about the research participants in each study:

Age range + average age

Number of males vs females

Other demographic information: country of origin, educational level, economic background, etc

How was each participant’s disease or condition defined/diagnosed?

How severe was each participant’s disease/condition?

Did participants have any other related diseases or health issues?

Is there any other baseline data about the participant’s health before the intervention?

Where did the participants receive the intervention/comparator?

How long did each person participate in the study?

Now let’s talk about the kind of data you should gather for each study’s intervention and comparator.