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National Healthcare Agreement: P39-Healthcare-associated Staphylococcus aureus (including MRSA) bacteraemia in acute care hospitals, 2010

This item has been superseded by a newer version by one or more Registration Authorities.

Definition

Healthcare-associated Staphylococcus aureus (including MRSA) bacteraemia in acute care hospitals.

Indicator Summary

Numerator

For public acute-care hospitals in Peer Group A and B, the number of patient episodes of Staphylococcus aureus bacteraemia (both methicillin resistant and methicillin sensitive) where the time when the first positive blood culture was collected was 48 hours or more after admission to hospital
plus
The number of patient episodes of Staphylococcus aureus bacteraemia (both methicillin resistant and methicillin sensitive) where the time when the first positive blood culture was collected was within 48 hours of the time of a discharge from hospital
plus
The number of any additional patient episodes of Staphylococcus aureus bacteraemia (both methicillin resistant and methicillin sensitive) where the time when the first positive blood culture was collected was within 48 hours of the time of admission and one of the following clinical criteria were met:

  • SAB is a complication of the presence of an indwelling medical device
  • SAB occurs within 30 days of a surgical procedure and is related to the surgical site
  • SAB occurs within 48 hours of, and is related to, an invasive instrumentation or incision SAB is associated with neutropenia (<1 x 109/L) contributed to by cytotoxic therapy
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Denominator
No denominator required
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Computation
A patient-episode of Staphylococcus aureus bacteraemia (SAB) is defined as a positive blood culture for Staphylococcus aureus. Only the first isolate per patient is counted, unless at least 14 days has passed without a positive blood culture, in which case an additional episode is recorded.
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Disaggregation
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Calculation rules

Computation Rule
Description
A patient-episode of Staphylococcus aureus bacteraemia (SAB) is defined as a positive blood culture for Staphylococcus aureus. Only the first isolate per patient is counted, unless at least 14 days has passed without a positive blood culture, in which case an additional episode is recorded.
Numerators

For public acute-care hospitals in Peer Group A and B, the number of patient episodes of Staphylococcus aureus bacteraemia (both methicillin resistant and methicillin sensitive) where the time when the first positive blood culture was collected was 48 hours or more after admission to hospital
plus
The number of patient episodes of Staphylococcus aureus bacteraemia (both methicillin resistant and methicillin sensitive) where the time when the first positive blood culture was collected was within 48 hours of the time of a discharge from hospital
plus
The number of any additional patient episodes of Staphylococcus aureus bacteraemia (both methicillin resistant and methicillin sensitive) where the time when the first positive blood culture was collected was within 48 hours of the time of admission and one of the following clinical criteria were met:

  • SAB is a complication of the presence of an indwelling medical device
  • SAB occurs within 30 days of a surgical procedure and is related to the surgical site
  • SAB occurs within 48 hours of, and is related to, an invasive instrumentation or incision SAB is associated with neutropenia (<1 x 109/L) contributed to by cytotoxic therapy
Denominators
No denominator required

References


This content Based on Australian Institute of Health and Welfare material. Attribution provided as required under the AIHW CC-BY licence.

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