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Table 3 Psychomotor and mental retardation rates for Group Twin-L vs. Group Twin-H

From: Physical growth and intelligence development of discordant dizygotic twins from birth to preschool age: a prospective cohort study

Scores

Level

PDI

 

MDI

 

Twin-H

Twin-L

Twin-H

Twin-L

 < 70

Lower

1 (2.9) a

6 (17.6)

4 (11.8)

6 (17.6)

70–89

Intermediate

6 (17.5)

6 (17.5)

8 (23.5)

8 (23.5)

90–109

Medium

14 (41.2)

12 (35.3)

14 (41.2)

17 (50.0)

 ≥ 110

Excellent

13 (38.2)

10 (29.4)

8 (23.5)

3 (8.8)

  1. Twin-H The group of Twin-High birthweight, Twin-L The group of Twin- Low birth weight
  2. PDI Psychomotor development index, MDI Mental development index
  3. aPsychomotor retardation rates (PDI < 70) in Group Twin-L were significantly higher than in Group Twin-H, P < 0.05
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Italian Journal of Pediatrics

ISSN: 1824-7288

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