---
title: Add a new variable
description: "To create a new variable , follow these steps: Access your series In the left menu, choose \"Variables\" and then \"New variable\" Fill the form and submit…"
---
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# Add a new variable
To create a new [variable](https://help.easymedstat.com/support/solutions/articles/77000142244-set-your-variables-the-characteristics-of-your-patients?hsLang=en), follow these steps:
1. Access your series
2. In the left menu, choose "Variables" and then "New variable"
3. Fill the form and submit
The following fields will be asked when you create a new variable:
- **Name**: choose a clear and explanatory name including the expected unit whenever needed
Eg. "Body Mass Index (kg/m2)" or "Pain score (/10)"
- **Type**: there are [4 types of variables](https://help.easymedstat.com/support/solutions/articles/77000173932-types-of-variables?hsLang=en) available.
The following fields are also asked but optional:
- **Category**: you can organize your variables in categories if you have many.
- **Rank**: order your variables as you wish by defining the rank in which it should appear. The first variable displayed should have rank 1.
- **Is optional**: you can require your collaborators to fill a variable. Get more information about [mandatory variables](https://help.easymedstat.com/support/solutions/articles/77000173931-mandatory-variables?hsLang=en).
- **Is analyzed**: some variables may use only to be informative and are not used for statistical analysis, for example, commentaries.
- **Is editable**: you can prevent your collaborators to edit the values of a patient for some variables by unchecking "Is editable"
- **Description**: when the name of a variable is not obvious or when you want your collaborators to know exactly what you are expecting, add a description
- **Description picture**: you can also add a picture to explain more clearly what you expect. For example, if you ask a classification which is not widely known by your collaborators, you can add a picture explaining this classification.
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