Selected Birth Defects in California

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Selected Birth Defects in California

Source: California Birth Defects Monitoring Program registry data.  Cases are actively ascertained from medical record review in hospitals, genetics centers, and chromosome laboratories.  Diagnoses to age 1 are included.

To minimize the random variation inherent in small numbers, we report 5-year averages from 8 counties that are a representative sample of California’s birth population.   Rates from these counties are similar to those throughout the State.