TABLE 1.

Means, 95% Confidence Intervals, and Correlation Coefficients for Independent Predictor Variables Used in the Validation Dataset (N = 100) Model Development^a

		95% Confidence Interval for Mean
	Mean	Lower Bound	Upper Bound	Surrogate Predictor Variable Correlation to Primary Predictorb
Peak knee abduction angle, deg	11.24	10.08	12.40	.40b
Knee valgus motion, cmc	4.15	3.74	4.55
Knee flexion ROM, degd	59.93	57.77	62.09	N/A
BMI Z-score, no. of SD	0.34	0.17	0.52	.78b
Body mass, kgc	53.66	51.18	56.14
Tibia length, cmd	35.91	35.41	36.41	N/A
Peak knee extensor moment, N ·m	97.38	90.94	103.82	.26b
QuadHam ratioc	1.54	1.45	1.62

^aROM, range of motion; BMI, body mass index; SD, standard deviations; QuadHam, quadriceps to hamstrings; N/A, not applicable.

^bCorrelation is significant at the .01 level (2-tailed).

^cSurrogate to laboratory-based predictors employed in clinic-based regression model.

^dPredictor variables were included in both laboratory-based and clinic-based regression models.