Table 1.

Child Characteristics at Baseline, by Treatment Group

	Interventiona			Controla
Characteristic	n	% or Mean	SD	n	% or Mean	SD
Age at study entry, mo	132	53.0	6.8	131	51.5	6.6
Anthropometric measures
Height, cm	132	102.3	6.1	131	102.6	5.2
Weight, kg	132	17.6	3.1	131	17.6	2.9
BMI, kg/m2	132	16.5	1.8	131	16.7	1.9
BMI z score	132	0.6	1.1	131	0.72	1.1
CDC weight classification, %
Obese (>95%)	19	14.4	NA	16	12.2	NA
Overweight (85.0%–94.9%)	34	25.8	NA	29	22.1	NA
Healthy weight	76	57.6	NA	85	64.9	NA
Underweight (<5%)	3	2.2	NA	1	0.8	NA
Gross motor skills
Gross motor quotientb	122	93.4	9.2	122	93.5	7.9
Stability standard scorec	131	9.9	2.2	127	10.2	2.3
Locomotor standard scorec	131	9.2	1.8	127	9.3	1.5
Object manipulation standard scorec	122	7.6	1.9	122	7.4	1.5
Physical activity
Step counts, 6 days	83	9,708	3,058	102	9,346	3,997
Step counts, weekdays	83	9,356d	2,926	102	8,974e	3,481
Step counts, weekend days	82	10,392d	4,602	101	10,177e	6,148

Note. BMI = body mass index; CDC = Centers for Disease Control and Prevention; NA = not applicable; SD = standard deviation.

^aNo significant differences existed between treatment groups for all categories.

^bQuotient normative score (mean ± SD) = 100 ± 15.

^cSubtest normative score (mean ± SD) = 10 ± 3.

^dSignificant differences existed within treatment groups between weekday counts and weekend counts: t(81) = −2.39, p = .02.

^eSignificant differences existed within treatment groups between weekday counts and weekend counts: t(101) = −2.61, p = .01.