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Description
This collation is used to determine the body mass index (BMI) percentile based on the Centers for Disease Control and Prevention (CDC) classification for patients ages 2 - 19 years old.
Limitation
Only available when both height and weight are non-missing and valid (from the BMI collation)
Data quality is limited to individual site documentation accuracy, completeness, and variable mapping, which is performed by each site, independently.
MPOG, as the coordinating center, reviews data quality at each data upload and monthly via Data Diagnostics and Case Validation tools. This review,
while thorough, may not contain all data elements relevant to this phenotype and thus should be carefully reviewed by the user.
Enumeration
| Value |
Value Code |
Definition |
Return Columns
Phenotype table not stored in database. No column returned.
Logic
This collation returns the CDC Classification for BMI percentile. It takes the result of the BMI percentile (pediatric) collation rounded to the nearest whole number and categorizes it into weight status categories:
| Weight Status Category |
Percentile Range |
| Underweight |
Less than the 5th percentile |
| Healthy Weight |
5th percentile to less than the 85th percentile |
| Overweight |
85th to less than the 95th percentile |
| Obesity |
Equal to or greater than the 95th percentile |
BMI-for-age - Boys Growth Chart
BMI-for-age - Girls Growth Chart