subjects

JSON array

This object is an array of subjects, with information about each subject.

JSON variables

🔵 Primary key 🔴 Required 🟡 Computed (squirrel writer/reader should handle these variables)

Variable	Type	Default	Description (and possible values)
AlternateIDs	JSON array		List of alternate IDs. Comma separated.
DateOfBirth	date	🔴	Subject’s date of birth. Used to calculate age-at-study. Value can be YYYY-00-00 to store year only, or YYYY-MM-00 to store year and month only.
Gender	char		Gender.
GUID	string		Globally unique identifier, from the NIMH Data Archive (NDA).
Ethnicity1	string		NIH defined ethnicity: Usually hispanic, non-hispanic
Ethnicity2	string		NIH defined race: americanindian, asian, black, hispanic, islander, white
Sex	char	🔴	Sex at birth (F,M,O,U).
SubjectID	string	🔴 🔵	Unique ID of this subject. Each subject ID must be unique within the package.
InterventionCount	number	🟡	Number of intervention objects.
ObservationCount	number	🟡	Number of observation objects.
StudyCount	number	🟡	Number of studies.
VirtualPath	string	🟡	Relative path to the data within the package.
studies	JSON array		Array of imaging studies/sessions.
observations	JSON array		Array of observations.
interventions	JSON array		Array of interventions.

Directory structure

Files associated with this section are stored in the following directory

/data/<SubjectID>