The effectiveness of Stepping Stones Triple P parenting support in parents of children with borderline to mild intellectual disability and psychosocial problems: a randomized controlled trial

Table 1 Baseline characteristics (mean (SD) or %) of participants by treatment group (n =209)

Characteristics	SSTP			CAU	P-value^a	P-value^b
Characteristics	Completed	Not completed	Total SSTP	CAU	P-value^a	P-value^b
Number	57	54	111	98
Child
Age of the child	9.70 (2.07)	10.13 (1.60)	9.91 (1.86)	9.65 (2.01)	0.337	0.319
Gender of child (boys)	64.9%	50.0%	57.7%	58.2%	0.941	0.282
Ethnicity Dutch	94.7%	94.4%	94.6%	99.0%	0.082	0.212
Parents
Mother’s education (medium-high)	61.4%	48.2%	54.9%	54.0%	0.322	0.386
Father’s education (medium-high)	56.6%	42.0%	49.5%	44.7%	0.408	0.488
Employed (>12 hours/week)	92.0%	93.8%	92.2%	83.3%	0.042	0.123
Family
Two-parent family	68.4%	69.8%	69.1%	64.3%	0.463	0.754
Pre-measures
SDQ_p (score 0-40 /tds)	19.00 (4.33)	19.52 (4.33)	19.25 (4.32)	19.84 (4.00)	0.313	0.486
SDQ_t (score 0-40 /tds)	14.96 (7.05)	13.98 (6.18)	14.46 (6.61)	13.50 (6.69)	0.340	0.498
ECBI (score 36-252 /ss)	131.30 (27.64)	119.80 (25.61)	125.70 (27.17)	127.67 (27.19)	0.605	0.072
PSI-s (score 25-150 /ss)	79.40 (24.79)	68.64 (24.64)	74.22 (25.19)	72.82 (23.95)	0.682	0.065
APQ (score 35-175 /ss)	99.72 (7.89)	98.89 (8.10)	99.32 (7.97)	98.80 (8.39)	0.651	0.783

^aDifferences tested between SSTP and CAU groups at baseline; ^bdifferences tested between SSTP completed, SSTP not completed and CAU groups at baseline. APQ, Alabama Parenting Questionnaire; CAU, Care as Usual; ECBI, Eyberg Child Behavior Inventory; PSI-s, Parenting Stress Index - short version; SD, standard deviation; SDQ_p, Strengths and Difficulties Questionnaire parent version; SDQ_t, Strengths and Difficulties Questionnaire teacher version; ss, sum score; SSTP, Stepping Stones Triple P; tds, total difficulties score.

ISSN: 1741-7015