RIQAS Reports

RIQAS reports are presented in a user friendly, one page per parameter format. Within each report page, up to seven sub reports are displayed, providing you with a variety of indications and comparisons to allow easy interpretation of your performance.

Also included is a quick reference Summary Page providing an overview of your performance for each registered parameter.

Text Section

Text SectionClick to ExpandThe text section provides a statistical breakdown of results by all methods, your method and instrument group.

Also included are the acceptable limits of performance for the parameter, where your % deviation can be compared to pre-set acceptable limits (e.g. government-based, CLIA, biological variation). Your Result is compared to the Mean for Comparison and your acceptable limits of performance are then applied. These limits are defaulted to the RIQAS TDPA values, but can be supplied in the form of a concentration, target % deviation or a number of standard deviations. Each limit is converted to a % deviation and compared to your % deviation for the parameter.

Performance goals based on Biological Variation are also stated within the text section for information purposes.


Text SectionClick to ExpandThe histogram chart provides an overview of how your laboratory’s result compares to the all method group, your method group and your instrument group. Your result is represented by a black triangle; the closer to the centre the better.

The chart is intended to provide a quick visualisation of performance compared to other method groups and can be used to identify any potential bias.


Text SectionClick to ExpandThe Levey-Jennings chart plots the last 20 SDI's and is extremely useful for monitoring EQA performance over time allowing quick and easy identification of any trends or bias. The chart is colour coded making interpretation simple and easy; results that fall in the white area are excellent and those in the red area unacceptable.

Target Score

Text SectionClick to ExpandThe Target Score (TS) chart is a unique chart whichs displays your laboratory's last 20 target scores. The TS allows performance to be assessed at a glance and relates your % deviation from the mean to a target deviation (TDPA). The chart is colour coded for easy interpretation; an acceptable score is >50.

% Deviation by Sample Chart

Deviation Sample ChartClick to ExpandSimilar to the Levey-Jennings the % deviation by sample chart is shaded to indicate the limit of acceptable performance. A black dot within the white section of the chart will represent results with a % deviation within your acceptable limits of performance; a black dot within the red section of the chart will represent results with a % deviation outside your acceptable limits of performance. % Deviations are not influenced by the performance of your peers, as seen with the standard deviation index (SDI) and therefore is a better indicator of individual performance.

% Deviation by Concentration Chart

Deviation by Concentration ChartClick to ExpandThe % deviation by concentration chart enables easy detection of possible concentration related biases. Unlike the other charts provided on the report, the % deviation by concentration chart shows the concentration range of the previous 20 results along the bottom of the chart.

Using this scale along with the percentage deviation, you are provided with a rapid assessment of your percentage deviation in relation to the concentration of the:

  • Current sample (represented by a square)
  • Your 19 previous results (represented by circles)

This chart provides an easy interpretation of potential positive or negative biases at high or low concentrations, or whether a particular sample is a random outlier.

Multi Method Stat Section

Multi Method Stat SectionClick to ExpandThe Multi Method Stat Section provides you with an easy way of assessing the performance of the other methods used to analyse the parameter. This is useful when your laboratory plans to change the analytical method used for the parameter.

Summary Page

Summary PageClick to ExpandOur quick reference summary page details performance for each registered parameter.

Within the performance column, RIQAS provides an effortless method of assessing the performance of each parameter within the sample distribution. When a red triangle appears next to the parameter, this indicates that all performance indicators (SDI, TS and %DEV) have exceeded your set limits.

The performance indicator limits for each parameter are exceeded when your result produces:

  • An SDI greater than +/- 2 standard deviations.
  • A Target Score less than 50 (only when Target Scoring is available)
  • A % deviation greater than your set acceptable limits of performance.

Summary CSV Files

A summary CSV file is available on request to all participating laboratories. The report provides a summary of all statistics, acceptable limits and performance indicators as a .csv file for each sample in the cycle.

A retrospective statistics summary is also available, four weeks after the final submission date for parameters where a result was not submitted on time.


RIQAS.Net is an internet-based data entry system allowing participants to return results and view reports online.

RIQAS.Net enables direct access for the submission of results and retrieval of RIQAS reports. Participants can submit current, corrected, late and future results, directly into RIQAS database eliminating need to fax or email EQA results. Reports are emailed directly to participants in PDF format when available. Reports can be e-mailed to up to three separate email addresses, and it is possible to view, store or distribute reports according to participants' needs. Current and previous reports are also available to download directly from the internet. Confidentiality and security is maintained at all times.

PDF Reporting

RIQAS reports can now be presented in PDF (portable document format), offering easy review and storage of your laboratory’s EQA data. There are many advantages associated with PDF reporting, increasing the usability and efficiency of data analysis.