CHAVI Data Dictionary

This page has the list of all fields in the CHAVI database.

CHAVI hosts a wealth of clinical data related to the patients from whom the images have been obtained. This data is available in a relational database which allows you to construct complex queries to search the image data. Thus not only can you access this data of the dataset as a whole but you can also access data across different projects. The database architecture is described in the database page. This page has the list of all available database fields for which clinical data may be available. Please note that data in all fields may not be available for all patients.

Please note that this is the data dictionary and to search the available data you need credentials for the CHAVI repository

You can filter the list by the database table, field type as well as search for text keywords related to the field.

Select Database Table

Select the database table to filter the list.

Field Type

Choose the field type to filter the list.

Data Stored

Please enter one or more keywords to search and filter the list

**Data Base Table Name drugtable:** *Stores data on drugs received by patient. This can include drugs which are anti-neoplastic as well as other drugs but are linked to a specific diagnosis and stage.*
Database Table	Field ID	Field Type	Data Stored in Field	Allowed Values
drugtable	drug_dose_unit	Character	Unit in which drug dose is measured. Please convert all doses to mg or ml for standardization.	milligram, millilitre
drugtable	drug_end_date	Date	Date when drug was stopped or cycles ended.	NA
drugtable	drug_name	Character	Name of the drug used. Please use the generic name.	NA
drugtable	drug_start_date	Date	Date on which the drug was started	NA

**Data Base Table Name nodalstatus:** The nodal status table has information on the nodal involvement noted in pathology. Please note that this table is not capturing information obtained in radiological evaluation. The table is linked to diagnosis to allow situations where patient has unknown primary with neck nodes. The table is linked to the following tables: diagnosis
Database Table	Field ID	Field Type	Data Stored in Field	Allowed Values
nodalstatus	extra_nodal_extension	Boolean	If extranodal extension is present	1, 0
nodalstatus	node_level	Character	The level(s) in which the nodes were removed and examined in the pathology specimen. Applicable for cervical and mediastinal nodal dissection mostly	NA
nodalstatus	nodes_examined	Integer	Number of nodes examined in the pathology specimen	NA
nodalstatus	nodes_itc	Integer	Number of nodes with isolated tumor cells found in pathology	NA
nodalstatus	nodes_micromets	Integer	Number of nodes with micrometastases in pathology	NA
nodalstatus	nodes_positive	Integer	Number of nodes found positive in the pathology specimen	NA