Table 4.

Summary of hierarchical regression analysis for variables predicting mother - reported negative impact (FIQ) at child age 3 (N=199)

Variable	Mean Square	d.f.	Unstandardiz ed beta (SE)	Standardi zed beta	R2	R2 chg	F R2 change	P
Step 1	573.2	1, 198			.026	.026	5.23	.023
Mother’s level of education			−1.02 (.45)	−0.16*
Step 2	3590.7	2, 196			.484	.458	87.01	< .001
Mother’s level of education			0.32 (0.35)	0.05
Child total behaviour problems			0.63 (0.05)	0.64***
Child cognitive level (BSID MDI)			−0.07 (0.02)	−0.17**
Step 3	1656.2	4, 192			.521	.037	3.70	.006
Mother’s level of education			0.34 (0.35)	0.05
Total behaviour problems			0.60 (0.06)	0.60***
Child cognitive level (BSID MDI)			−0.04 (0.05)	−0.10
Syndrome (undifferentiated delays vs. all other groups)			−1.47 (2.52)	−0.06
Syndrome (Down syndrome vs. all other groups)			−0.59 (3.71)	0.01
Syndrome (autism vs. all other groups)			−8.85 (3.13)	−0.21***
Syndrome (cerebral palsy vs. all other groups)			.87 (3.48)	0.02

^*P<0.05,

^**P<0.01,

^***P<0.001.

FIQ: Family Impact Questionnaire; BSID: Bayley Scales of Infant Development; MDI: Mental Development Index.