. 2021 Apr 30;147(5):e2020011528. doi: 10.1542/peds.2020-011528

TABLE 4.

Parameter Estimates (and SE) Comparing Age-Equivalent Scores to the Norming Sample Within Groups by Domain

	Premutation		Full Mutation
	Girl	Boy	Girl	Boy
Fixed effects
Initial status
Intercept (centered, ref)	36.00 (0.59)^***^,^a	36.00 (0.67)^***^,^a	36.00 (0.84)^***^,^a	36.00 (0.68)^***^,^a
Expressive language	−1.17 (1.04)^a	−0.41 (1.27)^a	−9.77 (1.11)^***	−18.86 (0.75)^***
Fine motor	−1.71 (1.04)^a	−2.31 (1.27)^a	−8.99 (1.11)^***	−16.00 (0.75)^***
Receptive language	−0.03 (1.04)^a	−0.43 (1.29)^a	−8.91 (1.11)^***	−16.36 (0.75)^***
Visual receptive	−0.11 (1.04)^a	−0.54 (1.27)^a	−6.76 (1.11)^***	−14.96 (0.75)^***
Rate of change, mo (centered, ref)
Time	1.00 (0.02)^***^,^a	1.00 (0.03)^***^,^a	1.00 (0.04)^***^,^a	1.00 (0.03)^***^,^a
Time by expressive language	0.02 (0.04)^a	−0.04 (0.07)^a	−0.30 (0.05)^***	−0.56 (0.03)^***
Time by fine motor	−0.06 (0.04)^a	−0.07 (0.07)^a	−0.37 (0.05)^***	−0.64 (0.03)^***
Time by receptive language	0.05 (0.04)^a	−0.03 (0.07)^a	−0.27 (0.05)^***	−0.52 (0.03)^***
Time by visual receptive	0.00 (0.04)^a	−0.12 (0.07)^a	−0.20 (0.05)^***	−0.52 (0.03)^***
Random effects
Time, mo	0.01 (0.00)^***	0.04 (0.01)^***	0.08 (0.02)^***	0.04 (0.00)^***
Domain	20.81 (2.35)^***	27.26 (3.36)^***	41.77 (3.64)^***	27.79 (1.30)^***
Time x domain	0.01 (0.00)^***	0.03 (0.00)^***	0.01 (0.00)^***	0.01 (0.00)^***
Residual	1.65 (0.06)^***	0.44 (0.02)^***	3.40 (0.12)^***	4.73 (0.15)^***

ref, reference group (norming sample).

Cells that share the same alphabetic superscript within domains are not statistically different from each other.

^***

P < .001