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. 2021 Feb 3;18(4):1388. doi: 10.3390/ijerph18041388

Table 1.

Diagnostic criteria of fetal alcohol spectrum disorder (FASD) [6].

Documented Prenatal Alcohol Exposure Criteria Required Features
FAS Yes or no A to D A. A characteristic pattern of minor facial anomalies (≥2):
1. Short palpebral fissures (≤10th percentile)
2. Thin vermilion border of the upper lip (rank 4 or 5)
3. Smooth philtrum (rank 4 or 5)
B. Prenatal and/or postnatal growth deficiency
1. Height and/or weight ≤10th percentile
C. Deficient brain growth, abnormal morphogenesis or abnormal neurophysiology (≥1):
1. Head circumference ≤10th percentile
2. Structural brain anomalies
3. Recurrent nonfebrile seizures
D. Neurobehavioral impairment
1. For children ≥3 y of age (a or b):
a. With cognitive impairment:
−Evidence of global impairment, OR
−Cognitive deficit in at least 1 neurobehavioral domain
b. With behavioral impairment without cognitive impairment:
−Evidence of behavioral deficit in at least 1 domain
2. For children <3 y of age:
−Evidence of developmental delay
pFAS Yes A and B A. A characteristic pattern of minor facial anomalies (≥2):
1. Short palpebral fissures (≤10th percentile)
2. Thin vermilion border of the upper lip (rank 4 or 5)
3. Smooth philtrum (rank 4 or 5)
B. Neurobehavioral impairment
1. For children ≥3 y of age (a or b):
a. With cognitive impairment:
−Evidence of global impairment, OR
−Cognitive deficit in at least 1 neurobehavioral domain
b. With behavioral impairment without cognitive impairment:
−Evidence of behavioral deficit in at least 1 domain
2. For children <3 y of age:
−Evidence of developmental delay
No A to C A. A characteristic pattern of minor facial anomalies (≥2):
1. Short palpebral fissures (≤10th percentile)
2. Thin vermilion border of the upper lip (rank 4 or 5)
3. Smooth philtrum (rank 4 or 5)
B. Growth deficiency or deficient brain growth, abnormal morphogenesis or abnormal neurophysiology
1. Height and/or weight ≤10th percentile, OR
2. Deficient brain growth, abnormal morphogenesis or neurophysiology (≥1):
a. Head circumference ≤10th percentile
b. Structural brain anomalies
c. Recurrent nonfebrile seizures
C. Neurobehavioral impairment
1. For children ≥3 y of age (a or b):
a. With cognitive impairment:
−Evidence of global impairment, OR
−Cognitive deficit in at least 1 neurobehavioral domain
b. With behavioral impairment without cognitive impairment:
−Evidence of behavioral deficit in at least 1 domain
2. For children <3 y of age:
−Evidence of developmental delay
ARND Yes A and B A. Documented prenatal alcohol exposure
B. Neurobehavioral impairment
For children ≥3 y of age (a or b):
a. With cognitive impairment:
−Evidence of global impairment, OR
−Cognitive deficit in at least 2 neurobehavioral domains
b. With behavioral impairment without cognitive impairment:
−Evidence of behavioral deficit in at least 2 domains
ARBD Yes A and B A. Documented prenatal alcohol exposure
B. One or more specific major malformations demonstrated in animal models and human studies to be the result of prenatal alcohol exposure

Note: FAS, fetal alcohol syndrome; pFAS, partial fetal alcohol syndrome; ARND, alcohol-related neurodevelopmental disorder; ARDB, alcohol-related birth defects.