Subject and Study Subject used in CheckPad are not the same concept:

Subject is used to denote individuals participating in a clinical trial in CheckPad. A subject can be enrolled in multiple studies.
Study subject is a subject participating in a specific study

To reuse subjects among study, user needs to turn on the Person ID configuration in Study Configuration

Contents:

Enroll Subject

Study needs to have "Available" status before enrolling subjects.

Enrolling a study subject also creates a subject in the system if the corresponding subject does not exist

Update Subject

Study subject is used throughout the system. To change subject's information user needs to have administrative rights

Data entrant can change the study subject's information

Access the study subject information page
Choose 'Edit Record' in 'Standard Information'
Change subject's information (Study Subject ID, Secondary ID, Enrollment Date, Subject Group Class)
Choose 'Confirm' to continue
Choose 'Submit' to finish the process

Data Fields of a Study Subject

Below is the list of data fields of a study subject. These fields are used to add or update study subject information.

Trường dữ liệu	Bắt buộc	Ý nghĩa	Hướng dẫn nhập liệu
Data Field	Required?	Meaning	Filling instructions
Site		Select site
Study Subject OID		OID of study subject in study, can be used in a rule	Automatically generated
Study Subject ID			Theo cài đặt trên hệ thống sẽ có một số phương pháp nhập sau: According to system configuration, there are the following input methods: ID automatically generated by system User manually inputs the ID Maximum 30 characters
Secondary ID
Person ID	Based on study configuration	ID number for subject on the system	Maximum 255 characters
Enrollment Date
Sex	Based on study configuration		Select one of the following: Male Female
Date of birth / Year of Bith	Based on study configuration
Subject Group Classes (Number based on study configuration)	Dependent on whether subject group class is required	Phân loại study subject, có thể tồn tại cùng lúc nhiều nhóm phân loại study subject Classify study subject - there can exist multiple subject group classes	Select patients' categorization criteria ia by list Can be skipped by selecting (--) when inputting data for subject group class which is not required

There are many links to the study subject information page. Below are the 2 most common ways to link to the page:

Method 1: Access via subject label of corresponding subject study page

Method 2: Access via task summary of a site