National Core Maternity Indicators: PI 13—Third and fourth degree tears for (a) all vaginal first births and (b) all vaginal births (2016)
Indicator Attributes
Identifying and definitional attributes | |
Metadata item type: | Indicator |
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Indicator type: | Indicator |
Common name: | Third and fourth degree tears for (a) all vaginal first births and (b) all vaginal births. |
Short name: | PI 13—Third and fourth degree tears for (a) all vaginal first births and (b) all vaginal births (2016) |
METEOR identifier: | 613194 |
Registration status: | Health, Superseded 06/09/2018 |
Description: | The proportion of women who have a third or fourth degree perineal laceration after giving birth vaginally for (a) all first births and (b) all births. |
Rationale: | Third and fourth degree perineal lacerations cause significant ongoing maternal morbidity. This is an outcome indicator that measures their occurrence. |
Indicator set: | National Core Maternity Indicators (2016) Health, Superseded 06/09/2018 |
Collection and usage attributes | |
Computation description: | The proportion of women who had a third or fourth degree perineal laceration after giving birth vaginally (a) for a first birth and (b) all births. |
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Computation: | 100 × (Numerator ÷ Denominator) |
Numerator: | (a) The number of women who had a third or fourth degree perineal laceration after giving birth for the first time and who had a vaginal birth. (b) The number of women who had a third or fourth degree perineal laceration after giving birth vaginally. |
Numerator data elements: | |
Denominator: | (a) The number of women who gave birth for the first time and who had a vaginal birth. (b) The number of women who gave birth vaginally. |
Denominator data elements: | |
Disaggregation: |
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Disaggregation data elements: | |
Comments: | Data elements are from the Perinatal national minimum data set (NMDS). Records with data that are missing, not stated or not interpretable have been excluded from the denominator. A birth is defined as the event in which a baby comes out of the uterus after a pregnancy of at least 20 weeks gestation or weighing 400 grams or more. Births included are vaginal births, including non-instrumental and instrumental births. A non-instrumental vaginal birth is one in which the baby is born through the vagina without the assistance of instruments. An instrumental birth is a procedure that uses instruments (forceps or vacuum extraction) to assist the baby to come out through the vagina. Births excluded are caesarean sections. Postpartum perineal status is defined as: 1st degree laceration/vaginal graze (Code 2)—Graze, laceration, rupture or tear of the perineal skin during delivery that may be considered to be slight or that involves one or more of the following structures:
2nd degree laceration (Code 3)—Perineal laceration, rupture or tear as in Code 2 occurring during delivery, also involving:
Excludes laceration involving the anal sphincter. 3rd degree laceration (Code 4)—Perineal laceration, rupture or tear as in Code 3 occurring during delivery, also involving:
Excludes laceration involving the anal or rectal mucosa. 4th degree laceration (Code 7)—Perineal laceration, rupture or tear as in Code 4 occurring during delivery, also involving:
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Representational attributes | |
Representation class: | Percentage |
Data type: | Real |
Unit of measure: | Person |
Format: | N[NN.N] |
Data source attributes | |
Data sources: | |
Relational attributes | |
Related metadata references: | Has been superseded by National Core Maternity Indicators: PI 13–Third and fourth degree tears for vaginal births, 2018 Health, Superseded 19/06/2019 |