Table 4.

Stepwise regression of mean adequacy ratio (MAR)^a scores on food groups for multiethnic (ie, African American [AA], Hispanic American [HA], and white [W]) Head Start mothers from two states (Texas [TX] and Alabama [AL]) race/ethnicity, adjusted for age and body mass index^b, reporting standardized beta coefficients (Std β) and partial variance (partial R²)

	Total		TX HA		TX AA		AL AA		AL W
Forward test	Std β	Partial R2	Std β	Partial R2	Std β	Partial R2	Std β	Partial R2	Std β	Partial R2
Vegetable no fried potatoes	0.3785	0.504	0.3302	0.415	0.4448	0.194	0.3703	0.200	0.4991	0.231
Fruit and juice	0.2055	0.042	0.2432	0.060	0.2168	0.068	0.2750	0.091	0.1407	0.042
Milk	0.1788	0.021	0.2329	0.035	0.2257	0.041	0.1179	0.012	0.2071	0.031
Grains	0.3078	0.158	0.3580	0.169	0.3715	0.183	0.3842	0.387	0.3769	0.277
Meats	0.1629	0.018	0.1919	0.032	0.3673	0.110	0.1380	0.019	0.1235	0.014
Sweetened beverage									−0.1336	0.014
Cheese	0.0923	0.008	0.1104	0.012					0.1629	0.019
Fried potatoes	0.0792	0.006			0.1477	0.020	0.1701		0.3325	0.066
Sweetened dessert	0.1473	0.024	0.1344	0.019	0.2369	0.063		0.025	0.2280	0.038
Total R2		0.78		0.73		0.66		0.72		0.71

^a%Recommended Dietary Allowance for each of eight nutrients (ie, dietary fiber, vitamin A, vitamin C, folate, calcium, iron, zinc, and potassium) but truncated at 100 before averaging.

^bHeight or weights were missing for 13 participants.