Development and validation of a food frequency questionnaire (FFQ) for assessing dietary macronutrients and calcium intake in Cambodian school-aged children

Table 1 Cumulative contribution and cumulative R² for calcium intake in the FFQ (top 15 of 56 items)

Ranking	Food item	Cumulative contribution %	Ranking	Food item	Cumulative R²
1	Fish paste	19.4	1	Fish paste	0.37
2	Boiled rice	30.2	2	Fermented fish	0.50
3	Fish sauce	34.0	3	Snails	0.60
4	Fermented fish	37.7	4	Condensed milk	0.65
5	Snakehead fish	41.3	5	Crab	0.69
6	Condensed milk	44.2	6	Fish sauce	0.73
7	Duck egg	47.0	7	Fresh milk	0.76
8	Soft drink juice	49.7	8	Ice cream	0.79
9	Fresh milk	51.6	9	Soft drink juice	0.81
10	Morning glory	53.4	10	Dried shrimp	0.83
11	Ice cream	55.0	11	Boiled rice	0.84
12	Soft drink, tea	56.6	12	Sweet potato	0.86
13	Bread	58.0	13	Shrimp	0.87
14	Snails	59.4	14	Bread	0.88
15	Soybean milk	60.6	15	Soybean milk	0.89

ISSN: 1475-2891