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Women Giving Birth Vaginally and Undergoing Blood Transfusion During Birth Admission, by DHB of Domicile

Basic Facts

Stage of development

Implemented

Potential or current usage

This measure can be used to compare levels of vaginal birth and blood transfusion between various District Health Boards in New Zealand.

Brief overview of the measure

General description

Broad subject area: Maternity. Specific aspect of care: Blood transfusion in vaginal birth. Population of interest: Women giving birth vaginally. Setting: maternal care Level of focus: District Health Boards.

Rationale for selection

Excessive blood loss is a potentially life threatening complication of birth, however it is difficult to measure precisely. The requirement for blood transfusion can be used instead as a broad measure of excessive blood loss/ post-partum haemorrhage.

Application and interpretation of the measure

Stated intent of the measure

The aim of this measure is to compare levels of vaginal birth and blood transfusion between various District Health Boards in New Zealand. It can be used for quality improvement and benchmarking purposes regarding pregnancy complications.

Caveats - Considerations

No apparent relationship with maternal age, so no standardisation neccesary

Links to other measures

New Zealand Atlas of Variation New Zealand Maternal Clinical Indicators 2009

Level of health care delivery/setting

Maternal care settings by District Health Board.

Target population

Women giving birth vaginally

Calculation of the measure

Output of calculation

Data are presented as standard deviation from the mean. Standard deviation is a statistical measure of variation from a mean. Assuming that recorded instances are normally distributed (i.e. they are in the usual ‘bell-shaped curve’) 95% of all recorded instances would be expected to be within 2 standard deviations either side of the mean. The two ‘middle’ shades will be within one standard deviation of the mean.

Numerator description

Women giving birth vaginally and undergoing blood transfusion during birth admission.

Denominator description

Total number of women who give birth vaginally

Time period

One year

Criteria/standard for optimal performance

There are no criteria for optimal performance; this measure is intended to benchmark regional differences in blood transfusion in vaginal births.

Data source

The data is extracted from the Ministry of Health.

Method of extraction

The data is extracted from the Ministry of Health.

Appraisal of the measure

Development approach

The measure has been fully developed by the Health Quality and Safety Commission.

Other items

Owner details

Reference number

4385

Date of entry to library

2013-11-22 10:50:57

Owner (Organisation name)

Health Quality and Safety Commission

Owner (Email contact)

Richard.Hamblin@hqsc.govt.nz

Creator (Organisation name)

Health Quality and Safety Commission

Creator (Email contact)

Richard.Hamblin@hqsc.govt.nz