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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.

ā€‹Mother's Age
ā€‹Prevalence Rate (per 10,000 births)
ā€‹<20
ā€‹3.9
ā€‹20-24
ā€‹3.8
ā€‹25-29
ā€‹3.4
ā€‹30-34
ā€‹3.0
ā€‹35-39
ā€‹1.8
ā€‹40+
ā€‹4.8
ā€‹All Births
ā€‹3.3
ā€‹
ā€‹Mother's Race/Ethnicity*
ā€‹Prevalence Rate
ā€‹White
ā€‹3.2
ā€‹Black
ā€‹4.6
ā€‹Hispanic
ā€‹3.0
ā€‹Asian/Pacific Islander
ā€‹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).

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