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About Z-Scores (in general)

According to the American Society of Echo's Guidelines and Standards for Performance of a Pediatric Echocardiogram:

In addition to reporting the absolute values, it is useful to report quantitative measures within the context of age- or size-appropriate norms (eg, z-score values).

A z-score indicates:
how many standard deviations an observation is above or below the mean. It allows comparison of observations from different normal distributions, which is done frequently in research.
(See the Wikipedia entry for more information about z-scores.)Concerning the application of z-scores to pediatric cardiology, interested persons should read:


About Me

My name is Dan Dyar. Among many other things, I am a Pediatric Cardiac Sonographer. Having worked in this field since Before The Internet, I sometimes observe the collision of technology and information in this field and am astonished by the disparity: we are simultaneously incredibly advanced and desperately primitive.
I hope this website helps soften these collision.
Should you wish to contact me, fill out the form here and hope for the best.

Disclaimer

The calculators provided are not meant to be a substitute for professional advice and are not to be used for medical diagnosis. All calculations must be confirmed before clinical use or diagnostic purposes by qualified medical professionals. The author makes no claims of the accuracy of the information contained herein. The authors make no claims whatsoever, expressed or implied, about the authenticity, accuracy, reliability, completeness or timeliness of the material, software, text, graphics and links given. In no event shall the author, suppliers, affiliates or any third parties be liable in any manner whatsoever for any damage arising upon use of any information provided.
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