Table 1

Description of the PICO of the systematic review

Serial numberPICODescriptions
1PopulationStudies conducted in clinical environments which may include:

  • Acute care (inpatient and outpatient);

  • Subacute care (rehabilitation centre);

  • Community (general practice and aged care).

2InterventionRegistry as an intervention with the following inclusion and exclusion criteria Inclusion criteria Studies will be included from the systematic review if they:

  • Describe either a clinical registry or a CQR which collects data on a procedure, disease or healthcare resource;

  • Collect data systematically and on an ongoing basis from the population being investigated;

  • Provide feedback on the performance of a health system on an ongoing basis;

  • Collect data from more than one hospital.

Exclusion criteria Studies will be excluded from the systematic review if they:

  • Collect and report on data from only one hospital;

  • Do not provide feedback on an ongoing basis (such as an audit or point prevalence study);

  • Are written in a language other than English;

  • Were published prior to the start date on 1 January 1980 or after the end date of 31 December 2014 or were review articles.

3ComparisonComparators:

  • Data collecting tools other than registry (population-based data, administrative data and medical record) to monitor health outcomes;

  • Studies without a comparator will be included.

4OutcomeThe primary outcome measure is impact on survival/mortality. Secondary outcome measures reflect a process or outcome of healthcare, healthcare utilisation and costs.

  • CQR, clinical quality registry; PICO, population, intervention, comparison and outcome.