GLI, LLN, Z-Score. Understanding GLI normative, why use of lower-limit of normal is important, and how to use Z-Score

Measured data is regularly compared to established normal values.

However, the power of normal values comes from the power of the number

of subjects used to establish the reference or predicted set, as well as how

well the "normal" set reflects a measured population for comparison. Dr

Stanojevic will discuss why the GLI reference set is more useful and more

powerful than older reference sets, and why 21st century PF labs should

work towards adopting these values.

Whenever subjects with similar demographics are grouped together, there

will be natural variance, or normal distribution in the group. Dr. Stanojevic

will discuss why lower and upper limits of normal are a better reflection of

determining normal vs abnormality and how Z-score, or how "far" from the

average a subject is, helps to determine the likelihood (aka probability) of

abnormality.

This program has been approved for 1.00 contact hour Continuing Respiratory Care Education (CRCE) credit by the American Association for Respiratory Care, 9425, N. MacArthur Blvd, Suite 100, Irving TX 75063

Respiratory Therapists, PFT Therapists, Quality Therapists