Food purchase patterns: empirical identification and analysis of their association with diet quality, socio-economic factors, and attitudes

Table 3 Factor loadings for food groups of three identified purchase patterns

	Factor loadings
	Factor 1	Factor 2	Factor 3	Commu-
Food groups of German Food Guide Pyramid	natural	processed	traditional	nalities
Plant based foods
Vegetables, salads, vegetable juices	0.694	0.372	0.326	0.727
Fruits, fruit juices	0.748	0.256	0.067	0.630
Whole grain products, nuts	0.629	0.253	−0.127	0.475
Potatoes	0.541	0.319	0.425	0.575
Refined grain products	0.303	0.686	0.358	0.691
Sugar, cakes, sweets, snacks, fatty potato prod.	0.379	0.651	0.326	0.673
Animal based foods
Low fat meat (−products)	0.256	0.347	0.555	0.494
Fish	0.604	0.162	0.284	0.472
Low fat milk (−products)	0.173	0.768	−0.167	0.648
Meat (moderate fat content)	0.328	0.436	0.646	0.715
Milk (−products) (moderate fat content)	0.484	0.198	0.258	0.340
High fat meat products (sausages), eggs, cream	0.423	0.471	0.588	0.747
Bacon	0.096	0.041	0.635	0.414
Fats and oils
Rape oil, walnut oil	0.115	0.368	0.214	0.195
Wheat germ oil, soybean oil	0.568	0.026	0.097	0.333
Margarine, corn oil, sunflower oil	0.109	0.632	0.428	0.595
Butter	0.513	0.057	0.405	0.431
Lard, solid vegetable fats	0.051	0.094	0.570	0.336
Cronbach’s alpha	0.770	0.759	0.758
Comparative Fit Index	0.939	0.949	0.953
Tucker-Lewis-Index	0.918	0.915	0.935
Root mean square error of approximation	0.086	0.129	0.048
Explained variance (%)	39.894	7.046	5.792
In total (%)	52.733

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