Australasian Clinical Indicator Report 2003 – 2010 Obstetrics ...

3.2 Selected primipara - episiotomy and no perineal tear (L)
Obstetrics, v6
Rationale
Vaginal birth is the most common cause of anal sphincter injuries in women and as such
obstetric anal sphincter injury is considered a major complication of vaginal birth – a
complication that can have a significant impact on a woman’s quality of life.
Numerator Total number of selected primipara undergoing episiotomy and NO perineal tear while
giving birth vaginally.
Denominator Total number of selected primipara delivering vaginally.
Dimensions of care: Accessibility Appropriateness Continuity
Effectiveness Efficiency Quality Improvement and Risk Safety
Desirable level: Low High Not specified
Type of Indicator: Process Outcome Structure
No. Total Total
Year HCOs numerator denominator Rate #
Centile Stratum Outlier
(20) (80) gains gains gains
2008 129 6,894 24,364 28.3 18.1 37.2 2,495 2,974 772
2009 138 8,388 30,824 27.2 16.5 34.2 3,307 2,955 1,026
2010 144 9,563 32,699 29.2 17.7 39.6 3,777 2,692 1,100
# per 100 selected primipara
Rate #
Rate #
In 2010 there were 265 data submissions from 144 HCOs. The annual rate was 29.2 per 100
selected primipara.
Variation between strata
Rates by Public / Private
No. Total
Total Stratum
Year Stratum HCOs numerator denominator rate #
Standard Stratum
error gains
2009 Private 47 3,475 10,163 33.4 1.23 940
Public 91 4,913 20,661 24.2 0.86
2010 Private 47 4,001 10,714 36.3 1.11 1,131
Public 97 5,562 21,985 25.8 0.78
# per 100 selected primipara
Australasian Clinical Indicator Report 2003-2010 Page 18
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