Table 4. Linear Regression Analysis for Predictors of Receptive and Expressive Language Ability in the Severe SCI Group.

Risk factor	B (SE)	β	F	p value	R2	ΔR2
Receptive language ability in SELSI
1 SRS–social communication	−0.008 (0.003)	−0.516	5.821	0.028	0.221	0.140
Expressive language ability in SELSI
1 IQ	0.008 (0.002)	0.637	10.898	0.005	0.368	0.108
2 IQ	0.008 (0.002)	0.610	9.986	0.003
SRS–social motivation	−0.013 (0.005)	−0.408		0.029	0.514	0.094

SCI, social communication impairments; SELSI, Sequenced Language Scale for Infants; SRS, Social Responsiveness Scale.

Model was adjusted for age, sex, IQ, use of antipsychotics, and the five subscores of the SRS.