Figure 1 | Scientific Reports

Figure 1

From: Early life cognitive development trajectories and intelligence quotient in middle childhood and early adolescence in rural western China

Figure 1

Trajectories of cognitive development identified in infants from 3 to 24 months of age in a Chinese birth cohort study (n = 1388). Lines show for each trajectory the predicated means of z score and 95% confidence limits. Size (%) of each trajectory estimated by the model are presented below the x-axis, which was slightly different from the actual size used in subsequent analysis. The Subgroup 1, 2, 3 and 4 were labeled “Start below average-then decrease”, “Start below average-then increase”, “Consistently average”, and “Consistently above average”, respectively. Abbreviation: MD, mental development; BSID, Bayley Scales of Infant and Toddler Development.

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