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Table 1 Evaluation of psychomotor development using Brunet-Lezine scale before and after vitamin B12 supplementation [7,8,9]

From: Vitamin B12 deficiency as a cause of severe neurological symptoms in breast fed infant – a case report

Psychomotor development areas

Before vitamin B12

supplementation

Calendar age: 6 months 26 days

After vitamin B12

supplementation

Calendar age: 16 months

Developmental age (DA) months;days

Developmental quotient (DQ)

Developmental age (DA) months;days

Developmental quotient (DQ)

Posture and locomotion (P)

4;10

63

12;0

75

Visual-motor coordination (C)

2;20

39

13;24

86

Social and emotional reactions (S)

4;0

58

12;0

75

Language skills (L)

2;10

34

12;0

75

Total development

3;20

54

12;09

77

  1. Developmental Age (DA) of the child is a total of the scores from each area P, C, L, S, which is then divided by 10.
  2. DA = P + C + L + S/10
  3. Total Developmental Quotient (DQ) is calculated as the developmental age (DA) divided by the child’s calendar age (CA) both values expressed in days, and then multiplied by 100.
  4. Total DQ = (DA/CA) × 100