Table 1.

Model comparisons within the non-deletion subgroup.

Scale	χ2	p	MutT fixed eff	MutM fixed eff	UPD fixed eff	FMAIN	Domain
BSID-III cognitive	24.57	0.03	1.65	2.67	−3.99	3.82	Cognitive
BSID-III receptive comm.	23.45	0.04	−0.48	0.73	−2.7	2.06	Communication
BSID-III expressive comm.	15.96	0.2	0.58	1.1	0.39	0.33	Communication
BSID-III fine motor	18.97	0.11	−1.3	1.24	−4.32	3.67	Motor
BSID-III gross motor	34.07	<0.001	−3.09	3.35	−2.43	4.16	Motor
VABS receptive comm.	24.3	0.03	0.66	2.35	−1.58	2.67	Communication
VABS expressive comm.	22.42	0.04	−3.03	−1.68	−3.92	2.83	Communication
VABS written comm.	34.62	<0.001	−1.26	−0.09	−2.41	6.02	Communication
VABS daily personal	21.85	0.05	−5.91	−3.41	−6.14	2.35	Daily living
VABS daily domestic	53.82	<0.001	−2.95	−2.25	−4.44	5.81	Daily living
VABS daily community	31.64	0.01	−1.47	−1.33	−2.94	3.15	Daily living
VABS social interpersonal	25.44	0.02	−0.85	−1.26	−2.11	1.67	Social
VABS social play leisure	29.43	0.01	−1.96	−0.83	−6.47	4.97	Social
VABS social coping	9.85	0.63	−2.27	−1.11	−2.15	1.51	Social
VABS gross motor	28.96	0.01	−9.53	0.34	−8.38	7.01	Motor
VABS fine motor	30.29	0.01	−3.33	−0.37	−4.6	3.53	Motor
PSL auditory	35.41	<0.001	−0.57	−0.05	−2.73	2.70	Communication
PSL expressive	40.84	<0.001	−0.44	0.84	0.16	0.42	Communication
CSS	27.24	0.02	−3.28	−3.04	−3.76	4.10	Clinical

F values for main effect of deletion length. P values have been obtained in likelihood-ratio tests (df = 11) and corrected for multiple comparisons using FDR (significant p-values, i.e. p < 0.05, are shown in bold font).. Unadjusted p values can be found in the Supplementary Table 9. The ‘Mut fixed effect’ column indexes the fixed main effect of Mut, the ‘UPD fixed effect’ indexes the fixed main effect of UPD, both as estimated by the LMM models, compared with IPD, and in units of raw points.