TABLE 2.

Balance table

	Control				Experimental
	Baseline		Completers		Baseline		Completers
Variables	(n = 19)		(n = 11)		(n = 18)		(n = 12)
Child characteristics
Mean age in months (SD)	2;0	(6·0)	2;1	(6·0)	2;4	(6·0)	2;5	(4·0)
Gender
Female (%)	36·8		36·4		38·9		39·7
Male (%)	63·2		63·6		61·1		58·3
Mean birth order (SD)			2·2	(1·3)			1·7	(1·0)
Language scorea (SD)	34·2	(21·0)	39·8	(22·6)	33·7	(30·1)	32·4	(27·4)
Mother characteristics
Mean age in years (SD)	27·2	(5·5)	28·4	(5·3)	25·8	(5·5)	26·8	(5·9)
Race
Black (%)	89·5		90·9		83·3		83·3
White (%)	10·5		9·1		16·7		16·7
Household income below $15,000 (%)	68·4		72·7		61·1		66·7
Graduated 4-year college	10·5		18·1		11·1		16·7
Single-parent households (%)	68·4		81·8		88·9		91·7
IQ (%)b	92·8	(16·1)	92·7	(17·4)	94·2	(13·5)	95·2	(13·5)
Literacyc (SD)	10·9	(2·9)	11·6	(2·2)	10·1	(2·8)	10·8	(2·3)
Depressiond (SD)	5·3	(4·2)	5·5	(4·2)	5·8	(3·0)	6·2	(2·8)
Parent stresse	41·2		47·4		28·3		30·8
Working memoryf (SD)	19·0	(10·1)	17·5	(3·0)	21·9	(9·1)	21·7	(9·7)

notes: The characteristics in this table that do not balance for the ‘completers’ group are the mean age of the children as well as the birth order of the children.

^a:McArthur CDI. In the baseline sample, 14 observations in control and 16 observations in experimental group had scores for this test. In the completers sample, there were 9 observations in control and 11 in experimental group.

^b:WASI IQ score. In the baseline sample, 13 observations in control and 17 observations in experimental group had scores for this test.

^c:STAR-grade score. In the baseline sample, only 16 observations in control and 20 observations in experimental group had scores for this test.

^d:CES-D-10 score.

^e:Stress index % score.

^f:OSPAN total score. In the baseline sample, only 17 observations in control and 18 observations in experimental group had scores for this test.