Interpreting the Oasys Report

OASYS II uses the discriminant analysis to score the record between 1 and 4 using a cutoff of 2.5. Scores above this have a 94% specificity for occupational asthma and a 75% sensitivity when using independent methods of diagnosis. A sensitivity of 75% means that 75% of those with true occupational asthma have a positive Oasys score of greater than 2.5. 25% of those with a score less than 2.5 will also have true occupational asthma, so a negative score cannot be used to exclude occupational asthma

A specificity of 94% means that 94% of those without occupational asthma will have an Oasys score less than 2.5. There will be 6% of those without occupational asthma who have a false positive Oasys score.

There are also the Area between curves (ABC) and timepoint scores.

All the scores are displayed on the Conclusions page of the Report along with their sensitivity / specifity and whether the optimal quality criteria have been met.

The computer generated scores are a useful aid to diagnosing occupational asthma. However human intervention is also required. There are many factors that confound analysis, such as respiratory infections, changing treatment, exercise, domestic allergies, laze and learnging effects, exercise etc etc. The computer is unable to recognise or account for these, so the graphs on the report should be considered alongside the scores.


How would you interprete these reports:

Hi there. Which reports are you talking about? Do you mean the ones on the link below?
Analysing the Oasys Report

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