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Skip Navigation LinksLimb-Deficiencies

California BIRTH Defects Monitoring

What are Limb Deficiencies?

Upper and lower limb reduction defects occur when a part of or the entire arm (upper limb) or leg (lower limb) of a fetus fails to form completely during pregnancy. The defect is referred to as a "limb reduction" because a limb is reduced from its normal size or is missing.

Content provided by the Centers for Disease Control and Prevention (CDC). For information and references about Prevention, please visit: Facts about Upper and Lower Limb Reduction Defects.

​Mother's Age
​Prevalence Rate (per 10,000 births)
​<20
​3.9
​20-24
​3.8
​25-29
​3.4
​30-34
​3.0
​35-39
​1.8
​40+
​4.8
​All Births
​3.3

Mother's Race/Ethnicity*
​Prevalence Rate
​White
​3.2
​Black
​4.6
​Hispanic
​3.0
​Asian/Pacific Islander
​2.3

*White, Black, Asian/Pacific Islander categories are all non-Hispanic

Data Source: California Birth Defects Monitoring Program Registry, 2012-2016 (PDF)

California Central Valley Counties (Fresno, Kern, Kings, Madera, Merced, San Joaquin, Stanislaus, and Tulare).

 Back to Data Sheets


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