Metadata item type: | Data Element Concept |
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| METEOR identifier: | 695399 |
| Registration status: |
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| Definition: | The estimated duration of a pregnancy on the day of the first antenatal care visit. |
Pregnancy—estimated duration of pregnancy at the first antenatal care visit
Object Class attributes
Identifying and definitional attributes
| Object class: | Pregnancy |
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| 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 |
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| 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 |
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Data element concept attributes
Relational attributes
| Related metadata references: | Supersedes Pregnancy—estimated duration
Has been superseded by Pregnancy—estimated duration of pregnancy at the first antenatal care visit
See also Product of conception—gestational age
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| Data Elements implementing this Data Element Concept: | Pregnancy—estimated duration of pregnancy at the first antenatal care visit, total completed weeks N[N]
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