Table 1.

Factorability of the correlation matrix of the original nutrients: Bartlett's test of sphericity and measures of sampling adequacy

Bartlett's test of sphericity: P-value < 0.001
Kaiser-Meyer-Olkin statistic - overall measure of sampling adequacy*: 0.80
Individual measures of sampling adequacy*:
<0.60Linoleic acid, retinol
0.60-<0.70Monounsaturated fatty acids, lycopene, vitamin D, vitamin E
0.70-<0.80Other polyunsaturated fatty acids, starch, calcium, vitamin C, total fiber
0.80-<0.90Animal protein, vegetable protein, cholesterol, saturated fatty acids, potassium, phosphorus, iron, thiamin, riboflavin, vitamin B6, total folate, niacin
≥0.90Linolenic acid, soluble carbohydrates, sodium, zinc, beta-carotene equivalents
  • *Overall and individual measures of sampling adequacy range between 0 and 1, with values > 0.60 indicating a satisfactory size.