Abnormal Development - Australian Statistics

From Embryology
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Introduction

Data groupings and classification as Major or Minor Abnormalities are based on that used by the Australian Institute of Health and Welfare National Perinatal Statistics Unit, UNSW and published in Congenital Malformations Australia 1981-92.

For individual systems, data shown as a % of all Major Abnormalities based upon published statistics using the same groupings as CMA 81-92. Please note that some congenital diseases involve more than one system.

Reference: Original Data source for graphs from Congenital Malformations Australia 1981-1992, P. Lancaster and E. Pedisich, ISSN 1321-8352.

The classification groups for Major and Minor Abnormalities are also shown.

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Australian Birth Anomalies System

"The national collation and reporting of birth anomalies data has been suspended in recent years due to concerns about data quality and comparability."
  • Variability among states and territories in scope of birth anomalies data collections: sources of birth anomalies notifications and definitions and classifications used; method of data collection and available resources.
  • Variability among the states and territories in the timing and method of the provision of birth anomalies data to the AIHW National Perinatal Statistics Unit (NPSU) for national collation and reporting.
  • New Australian Birth Anomalies System should be data for birth anomalies detected up to 1 year of age
    • including data on terminations of pregnancies with birth anomalies and regardless of gestational age (i.e. including less than 20 weeks gestation)
  • System will initially be based on data from the states able to detect birth anomalies at least up to 1 year of age (NSW, VIC, WA and SA), further extending the period of detection in the future

The Australian Congenital Anomalies Monitoring System (ACAMS) supersedes the National Congenital Malformations and Birth Defects Data Collection (NCM&BD).

Links: Australian Congenital Anomalies Monitoring System | Congenital Anomalies in Australia 2002-2003

NSW - Congenital Conditions Register

Scheduled congenital conditions (section 2) detected during pregnancy or in infants up to one year of age in NSW are required to be reported under the NSW Public Health Act 1991.

Scheduled congenital conditions include:

  1. All structural malformations. Examples include spina bifida, microcephaly, transposition of the great vessels, ventricular septal defects, pulmonary agenesis, polycystic lungs, duodenal atresia, exomphalos, hypospadias, cleft lip/palate, microphthalmia, limb reductions, polydactyly, birthmarks greater than 4 cms diameter, cystic hygroma and multisystem syndromes including at least one structural malformation.
  2. Chromosomal abnormalities. Examples include Down syndrome and unbalanced translocations.
  3. Four medical conditions: cystic fibrosis, phenylketonuria, congenital hypothyroidism and thalassaemia major.

Congenital conditions that are not notifiable include:

  1. Minor anomalies occurring in isolation (Examples of minor anomalies include skin tags, deviated nasal septum, tongue tie, benign heart murmurs, clicky non-dislocating hips, sacral dimples, positional talipes, abnormal palmar creases, dysmorphic features).
  2. Birth injuries.
  3. Congenital infections which do not result in a structural malformation.
  4. Tumours and cysts.
  5. Conditions arising from prematurity or asphyxiation.
Links: NSW Health - Congenital Conditions Register - Reporting Requirements 2009 PDF

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Cite this page: Hill, M.A. (2024, March 28) Embryology Abnormal Development - Australian Statistics. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Abnormal_Development_-_Australian_Statistics

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G