Table 3.

Fine motor trajectory models

	Fine motor direct assessment
	9-month models			12-month models			18-month models
	b	SE(b)	p	b	SE(b)	p	b	SE(b)	p
Intercept	5.88	0.78	< .001	7.22	0.74	< .001	9.90	0.69	< .001
VRDQ	0.06	0.01	< .001	0.06	0.01	< .001	0.06	0.01	< .001
Age	0.45	0.03	< .001	0.45	0.03	< .001	0.45	0.03	< .001
FXS	0.73	0.71	.305	1.05	0.64	.107	1.68	0.60	.006
TD	1.30	0.65	.049	2.08	0.61	.001	3.63	0.59	< .001
FXS × age	0.11	0.05	.033	0.11	0.05	.032	0.11	0.05	.032
TD × age	0.26	0.04	< .001	0.26	0.04	< .001	0.26	0.04	< .001
	Fine motor parent report
	9-month models			12-month models			18-month models
	b	SE(b)	p	b	SE(b)	p	b	SE(b)	p
Intercept	6.93	1.12	< .001	8.19	1.07	< .001	10.71	1.03	< .001
VRDQ	0.03	0.01	.024	0.03	0.01	.024	0.03	0.01	.024
Age	0.42	0.05	< .001	0.42	0.05	< .001	0.42	0.05	< .001
FXS	0.64	0.97	.511	1.14	0.91	.215	2.15	0.92	.022
TD	2.65	0.90	.004	3.39	0.86	< .001	4.86	0.89	< .001
FXS × age	0.17	0.07	.012	0.17	0.07	.012	0.17	0.07	.012
TD × age	0.25	0.06	< .001	0.25	0.06	< .001	0.25	0.06	< .001