Use of the Bayley Scales of Infant and Toddler Development, Third Edition, to Assess Developmental Outcome in Infants and Young Children in an Urban Setting in South Africa

Table 2

Bayley III assessments at different ages in the same children ().

Variable	First assessment		Second assessment		value
	Mean	95% CI	Mean	95% CI
Adjusted age	10.9	10.1–10.7	19.9	19.1–20.7	<0.001
Cognitive	92.8	89.5–96.1	93.2	89.3–97.1	0.874
Language	103.0	99.7–106.2	94.6	91.7–97.5	0.001
Motor	95.2	92.2–98.3	100.1	97.9–102.4	0.004