Step 2: Entering study results

Study-centric data is only available for the reviews that enter the pilot. If you are interested in learning more about the pilot and how to join, please contact revman@cochrane.org.

1. Add a study

After setting up the concepts (see Step 1), you need to enter results of the included studies.

In this example, you start by entering data for a study ('Herne 1980'). Click Studies in the navigation panel and then Included. On the page with the list of included studies, which is initially blank, click the Add Study button. 

On the Study page you can see seven tabs: General, References, Characteristics, Covariates, Study arms, Result Data, and Risk of Bias. In the General tab, you can type in the name of the study. In this example, you only need to add information in the Study arm tab and result data tab. 

2. Enter study arm

The study you are entering data for has three arms: xibornol, tetracycline and placebo. The former two arms correspond to the 'Antibiotics' intervention you defined in the first step, while the latter corresponds to the Placebo intervention. You could choose to combine the first two arms manually, but it's better to let RevMan do this so that you have a record of the original extracted data.

Go to the Study arm tab. Click Add Arm and choose 'Antibiotics' as the Intervention. For the Name, enter 'Xibornol' (overwriting the default name provided by RevMan). 
Add the second arm by clicking Add Arm, and choose 'Antibiotics' as the Intervention again. For the Name, enter 'Tetracycline'. Finally, click Add Arm a third time and choose 'Placebo' as Intervention. Leave the default Name as it is.

3. Enter result data

Go to the Result Data tab. Pick the outcome that you defined earlier 'Persistent symptoms after 7 days' from the Outcome list and click Add Result. This will generate a table with one row for each of the three study arms, and two columns where you can enter the number of Events (participants with symptoms) and the Total (sample size). For Xibornol, enter Events 3 and Total 22. For Tetracycline, enter Events 4 and Total 24. For Placebo, enter Events 10 and Total 22.

An analysis with only one study is not very interesting, so you need to add some more results. To do so, repeat the steps above for the studies in the following table. It's also possible to skip ahead and add the analysis now, and then come back later to add the remaining studies. 

Study IDInterventionArmEventsTotal
Hoaglung 1950AntibioticsAureomycin39154
PlaceboPlacebo51155
Kaiser 1996AntibioticsCo-amoxiclav97146
PlaceboPlacebo94142
Lexomboon 1971AntibioticsPenicillin V8174
PlaceboPlacebo4187
McKerrow 1961AntibioticsTetracycline515
PlaceboPlacebo818
Tailor 1977AntibioticsCo-trimoxazol1229
PlaceboPlacebo359

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