Samsung ACCUVIX XG Manuel d'utilisateur Page 373

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Chapter 5 Measurements and Calculations
While the range of Growth Table references that are primarily used with OB measurement data
varies depending on the user, the typical range accepted by most users is as below:
1) When references are created based on SD:
X
-2.0 SD ~ +2.0 SD (when converted to Percentile: 2.28 Percentile ~ 97.72 Percentile)
X
-1.5 SD ~ +1.5 SD (when converted to Percentile: 6.68 Percentile ~ 93.32 Percentile)
X
-1.0 SD ~ +1.0 SD (when converted to Percentile: 15.87 Percentile ~ 84.13 Percentile)
2) When references are created based on Percentile:
X
2.5 Percentile ~ 97.5 Percentile (when converted to SD: -1.96 SD ~ 1.96 SD)
X
5.0 Percentile ~ 95.0 Percentile (when converted to SD: -1.645 SD ~ 1.645 SD)
X
10.0 Percentile ~ 90.0 Percentile (when converted to SD: -1.288 SD ~ 1.288 SD)
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