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Child type (including grandchildren) (CTGP)

Census of Population and Housing: Census dictionary
Reference period
2021

Definition

This variable records the different child types within a family, including grandchildren. It recognises a grandchild regardless of the age of the grandchild. This variable is different to the standard Child type (CTPP) variable which does not capture grandchildren. 

This variable can only be used with other related grandparent/grandchild variables. These variables are:

  • Grandparent families (FMGF)
  • Relationship in household (including grandchildren) (RLGP)

It cannot be used with standard family variables.

Scope

All children

Categories

CodeCategory

1

Natural, or adopted child of both parents or lone parent

2

Step child of male parent

3

Step child of female parent

4

Foster child, so stated

5

Grandchild

6

Otherwise related child (under 15)

7

Unrelated child (under 15)

@

Not applicable

V

Overseas visitor

Number of categories: 9

Not applicable (@) category comprises:

  • Husband, wife, partners, lone parents, other related individuals, non-family members, or visitors (from within Australia) in family households
  • Persons in non-family/non-classifiable households
  • Persons in non-private dwellings
  • Persons in migratory, off-shore and shipping SA1s

Question(s) from the Census form

What is the person’s relationship to Person 1/Person 2?

    What is the person’s relationship to Person 1/Person 2?
    What is Person 2's relationship to Person 1?

    Examples of other relationships: Son-in-law, Grand-daughter, Uncle, Boarder.

    More information

    Husband or wife of Person 1

    De facto partner of Person 1

    Child of Person 1

    Stepchild of Person 1

    Brother or sister of Person 1

    Unrelated flatmate or co-tenant of Person 1

    Other relationship to Person 1 (please specify)

      More information

      Additional information relating to the question on: What is the person’s relationship to Person1/Person 2?

      More information

      What is Person 2's relationship to Person 1?

      Examples of other relationships: Son-in-law, Grand-daughter, Uncle, Boarder.

      More information

      If more than one response applies, select only the option that shows the relationship that most closely applies.

      What is the person's date of birth and age?

        What is the person's date of birth and age?
        What is Person 1's date of birth?

        If date of birth is not known, please select 'Don't know date of birth' and provide Person 1's age.

        More information

        Day Month Year

        OR

        Don't know date of birth

        Age

          More information

          Additional information relating to the question on: What is the person's date of birth and age?

          More information

          What is Person 1's date of birth?

          If date of birth is not known, please select 'Don't know date of birth' and provide Person 1's age.

          More information

          It is important to note:
          •Date of birth is the date that the person was born.
          •Age is required only if the person's date of birth is not known. Please report age at Census night – Tuesday 10 August 2021.

          If the person is less than one year old and their date of birth is not known, enter '0' in the age box.

          Is the person attending a school or other education institution?

            Is the person attending a school or other education institution?
            Is Person 1 attending a school or any other education institution?
            Include tertiary education and vocational education and training providers (e.g. TAFE and private training providers).

            Include external, online or correspondence study.

            More information
            Person's school attendance

            No

            Yes, full-time student

            Yes, part-time student

              More information

              More information relating to the question: Is the person attending a school or other education institution?

              More information

              Is Person 1 attending a school or any other education institution?
              Include tertiary education and vocational education and training providers (e.g. TAFE and private training providers).

              Include external, online or correspondence study.

              More information
              Select full-time student or part-time student based on whether the institution considers the person to be a full-time or part-time student.

              For a person who attends only hobby or recreational courses, select 'No'.

              If the person is currently studying at home because of lockdowns or other COVID-related reasons, but usually attends a school or other education institution, select one of the 'Yes' options.

              For each person away, complete the following questions:

                List the people who were away on the night of Tuesday 10 August 2021 but usually live in this dwelling.
                List the people who were away on the night of Tuesday 10 August 2021 but usually live in this dwelling.

                Remember that people listed here will need to complete a Census form for where they were in Australia on Census night.

                People away

                List Person Away 1 - Any person who usually lives in this dwelling, but was away.

                Add another person away

                  Example

                  Example response to the question: List the people who were away on the night of Tuesday 10 August 2021 but usually live in this dwelling. Person 4 added as person temporarily absent on Census night.

                  Example

                  List the people who were away on the night of Tuesday 10 August 2021 but usually live in this dwelling.

                  Remember that people listed here will need to complete a Census form for where they were in Australia on Census night.

                  People away

                  Person 4 Surname - Any person who usually lives in this dwelling, but was away.

                  Add another person away
                    What is Person 4's date of birth?
                    What is Person 4's date of birth?

                    If date of birth is not known, please give age.

                    More information

                    Date of birth

                    Day Month Year

                    OR

                    Age

                      More information

                      Additional information relating to the question on: What is Person 4's date of birth?

                      More information

                      What is Person 4's date of birth?

                      If date of birth is not known, please give age.

                      More information

                      It is important to note:
                      • Date of birth is the date that the person was born.
                      • Age is required only if the person's date of birth is not known. Please report age at Census night – Tuesday 10 August 2021.

                      If the person is less than one year old and their date of birth is not known, enter '0' in the age box.
                        Is Person 4 a full-time student?
                        Is Person 4 a full-time student?

                        More information

                        No

                        Yes

                          More information

                          Additional information relating to the question on: Is Person 4 a full-time student?

                          More information

                          Is Person 4 a full-time student?

                          More information

                          Select 'Yes' if the institution considers the person to be a full-time student. Select 'No' if the institution considers the person to be a part-time student.

                          For a person who attends only hobby or recreational courses, select 'No'.

                          For a child who attends a preschool or preschool program (including early childhood education and centre based day care providers):
                          • Select 'Yes' if they attend at least 15 hours a week on average.
                          • Select 'No' if they attend less than 15 hours a week on average.
                            What is Person 4's relationship to Person 1/Person 2?
                            What is Person 4's relationship to Person 1/Person 2?

                            Examples of other relationships: Son-in-law, Grand-daughter, Uncle, Boarder.

                            More information

                            Husband or wife of Person 1

                            De facto partner of Person 1

                            Child of both Person 1 and Person 2

                            Child of Person 1 only

                            Child of Person 2 only

                            Unrelated flatmate or co-tenant of Person 1

                            Other relationship to Person 1 (please specify)

                              More information

                              Additional information relating to the question: What is Person 4's relationship to Person 1/Person 2?

                              More information

                              What is Person 4's relationship to Person 1/Person 2?

                              Examples of other relationships: Son-in-law, Grand-daughter, Uncle, Boarder.

                              More information

                              If more than one response applies, select the option that shows the relationship that most closely applies.

                              How this variable is created

                              This variable is created using responses to the relationship in household, age, attendance at an educational institution and persons temporarily absent (PTA) questions on the Census form. It is derived from the Relationship in household (including grandparents) (RLGP) variable.

                              This variable classifies a person as a grandchild, regardless of age, if their Relationship in household (including grandchildren) (RLGP) to the family reference person is either a:

                              • 34 Grandchild under 15
                              • 44 Dependent student grandchild
                              • 54 Non dependent grandchild

                              Child type (including grandchildren) (CTGP) is different to the standard family variable Child type (CTPP). The table below outlines these differences and how each variable classifies the child.

                              ScenarioHow it would be coded in CTGPHow it would be coded in CTPP

                              Person aged 15 years or more and has relationship of grandchild to Person 1/Person 2

                              5 Grandchild

                              @ Not applicable

                              Person aged under 15 and has relationship of grandchild to Person 1/Person 2

                              5 Grandchild

                              35 Otherwise related child under 15

                              History and changes

                              This variable was created in 2011. No changes have been made for 2021.

                              Data use considerations

                              Users should note that grandparent-grandchild relationships are constructed for the purposes of family coding in order to create a statistical family. It may not be representative of who provides care.

                              For example, a scenario could be that a 20 year old grandchild lives with her grandmother. She is a full-time student and is dependent on her grandmother. Alternatively, she may have moved in with her grandmother specifically to take care of her. It is important that users do not make assumptions about grandparent families.

                              Related variables and glossary terms

                              • Grandparent families (FMGF)
                              • Relationship in household (including grandchildren) (RLGP)
                              • Child