Table 2.

Level of agreement between parent-reported and researcher-measured child height, weight, and calculated body mass index (BMI).

Time point		Intervention group			Control group			Combined
		MDa (SD)	ρcb	95% CI	MD (SD)	ρc	95% CI	MD (SD)	ρc	95% CI
Baseline		n=28			n=14			n=42
	Height (cm)	–1.9 (5.7)	.94	0.90-0.98	1.0 (6.3)	.94	0.87-0.99	–0.9 (6.0)	.94	0.91-0.97
	Weight (kg)	–1.1 (5.3)	.94	0.90-0.98	0.7 (4.0)	.98	0.95-1.00	–0.5 (4.9)	.96	0.93-0.98
	BMI (kg/m2)	0.7 (4.9)	.53	0.26-0.80	0.7 (4.2)	.76	0.52-1.00	0.7 (4.7)	.63	0.45-0.81
Week 12		n=21			n=14			n=35
	Height (cm)	–0.2 (6.4)	.93	0.87-0.99	–3.9 (8.8)	.86	0.74-0.99	–1.7 (7.5)	.90	0.84-0.96
	Weightc (kg)	–1.6 (3.3)	.98	0.95-1.00	–2.9 (2.6)	.98	0.96-1.00	–2.1 (3.0)	.98	0.96-0.99
	BMIc (kg/m2)	–0.9 (2.3)	.85	0.73-0.98	0.2 (3.6)	.84	0.68-1.01	–0.5 (2.9)	.86	0.76-0.95

^aMD: mean difference (parent-reported value subtract researcher-measured value).

^bρc: Lin concordance correlation coefficient, ranging from 0 to ±1, where a value close to 1.0 (and a 45° fitted line of perfect concordance) suggests a perfect level of agreement, .951-.99 is substantial agreement, .90-.950 is moderate agreement, and <.90 is poor agreement).

^cData were available from n=19 intervention families due to missing parent-reported weight.