Multiple Of The Median; MOM - 의학 (Medicine)

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====== Multiple Of The Median; MOM ======

A multiple of the median (MoM) is a measure of how far an individual test result deviates from the median. MoM is commonly used to report the results of medical screening tests, particularly where the results of the individual tests are highly variable.[1]

MoM was originally used as a method to normalize data from participating laboratories of Alpha-fetoprotein (AFP) so that individual test results could be compared. 35 years later, it is the established standard for reporting maternal serum screening results.

Because AFP concentrations normally increase during pregnancy (by about 15 percent each week), a statistic called the “multiple of the median” (MoM) is used to normalize the test result.  - See more at: http://www.pregnancylab.net/multiple-of-the-median/#sthash.eybH2XKE.dpuf

As an example, Alpha-fetoprotein (AFP) testing is used to screen for a neural tube defect (NTD) during the second trimester of pregnancy. If the median AFP result at 16 weeks of gestation is 30 ng/mL and a pregnant woman's AFP result at that same gestational age is 60 ng/mL, then her MoM is equal to 60/30 = 2.0. In other words, her AFP result is 2 times higher than "normal."

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