Table 2 Neurodevelopmental outcome at 18 months - Griffiths developmental quotients (DQ), n = 92

From: Infant sleep EEG features at 4 months as biomarkers of neurodevelopment at 18 months

Griffiths III

Median (IQR)

Observed range

Minimum

Maximum

Subscale A DQ, Foundations of Learning

114 (105–122)

68

130

Subscale B DQ, Language and Communication

109 (99–117)

67

145

Subscale C DQ, Eye and Hand Coordination

118 (109–122)

93

150

Subscale D DQ, Personal-Social-Emotional

122 (117–125)

88

132

Subscale E DQ, Gross Motor

135 (126–135)

50

150

GD DQ, General Development

122 (112–127)

84

141

  1. Upper and lower thresholds of the Griffiths III quotients are >150 and <50, respectively. Low quotients indicate developmental delay.