Table 3.

Sibling-Level and Family-Level Predictors of Positive Affect in the Sibling Relationship and Pessimism about the Brother/Sister with ASD’s Future

	Total Positive Affect in the Sibling Relationship		Sibling Positive Affect toward Brother or Sister with ASD		Sibling Positive Affect from Brother or Sister with ASD		Sibling Pessimism about Brother or Sister with ASD’s future
	Coefficient (SE)	p	Coefficient (SE)	p	Coefficient (SE)	p	Coefficient (SE)	p
Sibling Level
Own education	−1.003 (0.598)	0.096	−0.444 (0.306)	0.149	−0.428 (0.342)	0.213	0.103 (0.183)	0.572
Parental support	0.103 (0.079)	0.193	0.032 (0.042)	0.450	0.076 (0.045)	0.092	0.037 (0.027)	0.164
Adolescent relationship	5.980 (0.872)	<0.001	2.706 (0.465)	<0.001	3.330 (0.510)	<0.001	−0.094 (0.257)	0.716
Own age	−0.061 (0.070)	0.384	−0.001 (0.036)	0.970	−0.055 (0.041)	0.180	−0.016 (0.021)	0.470
Contact with b/s with ASD	0.603 (0.419)	0.153	0.455 (0.223)	0.043	0.166 (0.240)	0.489	0.140 (0.134)	0.300
Own depressive symptoms	−0.188 (0.076)	0.015	−0.090 (0.039)	0.023	−0.076 (0.042)	0.092	0.026 (0.020)	0.188
Family Level
Intellectual disability in b/s with ASD	−4.464 (1.732)	0.009	−1.682 (0.887)	0.060	−2.884 (1.013)	0.006	1.571 (0.529)	0.004
Challenging behaviors in b/s with ASD	−0.009 (0.072)	0.902	−0.001 (0.037)	0.970	−0.008 (0.043)	0.858	0.047 (0.023)	0.048
Number of siblings in family	−0.269 (0.461)	0.560	−0.146 (0.231)	0.528	−0.055 (0.268)	0.838	−0.322 (0.130)	0.015