Object Class attributes

Identifying and definitional attributes

Object class:	Pregnancy
Definition:	The period during which a woman carries a developing fetus, normally in the uterus. Pregnancy lasts for approximately 266 days, from conception until the baby is born, or 280 days from the first day of the last menstrual period. During pregnancy menstruation is absent, there may be a great increase in appetite, and the breasts increase in size; the woman may also experience morning sickness. These and other changes brought about by a hormone (progesterone) produced at first by the ovary and later by the placenta. Definite evidence of pregnancy is provided by various pregnancy tests, by the detection of the heartbeat of the fetus, and by ultrasound.
Specialisation of:	Life event
Source and reference attributes
Submitting organisation:	Australia Institute of Health and Welfare
Origin:	University of Oxford 2002. Concise Colour Medical Dictionary 3rd ed. UK: Oxford University Press

Property attributes

Identifying and definitional attributes

Property:	Estimated duration of pregnancy at the first antenatal care visit
Definition:	The estimated period of human development inside the uterus measured from the first day of the last menstrual period, at the first antenatal care visit.
Property group:	Physical characteristics

Source and reference attributes

Submitting organisation:	Australian Institute of Health and Welfare

Data element concept attributes

Relational attributes

Related metadata references:

Supersedes Pregnancy—estimated duration Health, Superseded 12/12/2018 Indigenous, Superseded 02/04/2019 Tasmanian Health, Superseded 03/07/2020 WA Health, Standard 04/03/2014 Has been superseded by Pregnancy—estimated duration of pregnancy at the first antenatal care visit Health, Standard 03/12/2020 Indigenous, Standard 14/07/2021 See also Product of conception—gestational age Health, Standard 12/12/2018 Tasmanian Health, Standard 03/07/2020

Data Elements implementing this Data Element Concept:

Pregnancy—estimated duration of pregnancy at the first antenatal care visit, total completed weeks N[N] Health, Superseded 03/12/2020 Indigenous, Superseded 14/07/2021 Tasmanian Health, Superseded 24/03/2023