Table 4 Mean of food intake assessed by the FFQ and mean of difference between both methods
From: Relative validation of the KiGGS Food Frequency Questionnaire among adolescents in Germany
Food group | n | FFQ | Mean difference* | Mean difference%** | P2.5-P97.5 of mean difference | |
|---|---|---|---|---|---|---|
| Â | Â | Mean | SD | Â | Â | Â |
Milk | 1205 | 230.2 | 355.8 | 3.1 | 1.4 | -406.1-738.5 |
Soda | 1205 | 383.9 | 698.6 | -44.8 | -11.0 | -1518.8-1608.4 |
Sport/energy drinks | 1201 | 26.0 | 110.7 | 11.5 | 56.8 | -85.5-200 |
Juice | 1200 | 306.3 | 526.9 | -172.6 | -44.0 | -1456.8-964.1 |
Tap water | 1204 | 246.3 | 622.4 | 142.3 | 81.2 | -599.1-2090 |
Mineral water | 1206 | 636.2 | 922.0 | -60.3 | -9.0 | -1845-2248.8 |
Fruit/herbal tea | 1203 | 75.1 | 206.1 | -23.7 | -27.2 | -522.9-277.9 |
Green/black tea | 1207 | 33.4 | 182.2 | 8.1 | 27.6 | -116.8-150 |
Coffee | 1208 | 24.3 | 87.7 | -6.4 | -23.2 | -159.5-113 |
Breakfast cereals | 1207 | 21.5 | 33.8 | -3.7 | -15.8 | -89.8-66.6 |
Brown bread1 | 1206 | 64.0 | 95.1 | 9.5 | 16.0 | -190-250 |
White bread2 | 1210 | 66.6 | 86.8 | -30.1 | -36.9 | -197.3-187.2 |
Butter | 1193 | 5.2 | 9.4 | -4.7 | -62.3 | -43.1-18.4 |
Margarine | 1206 | 4.0 | 8.3 | -5.6 | -82.4 | -45.3-10 |
Cheese | 1203 | 24.9 | 40.2 | 5.9 | 26.9 | -49.2-111 |
Curd3 | 1206 | 73.5 | 103.9 | 14.2 | 21.4 | -137.2-200 |
Cream cheese | 1200 | 6.5 | 19.2 | 1.4 | 24.3 | -18.6-30 |
Eggs | 1200 | 13.2 | 22.5 | 0.3 | 2.3 | -32.8-40 |
Soup | 1209 | 75.4 | 118.6 | 8.0 | 11.2 | -181.4-185.7 |
Meat | 1202 | 43.2 | 60.6 | 3.3 | 8.0 | -86.4-113.6 |
Poultry | 1199 | 24.1 | 33.1 | 8.9 | 45.3 | -38-81.3 |
Meat products | 1200 | 20.4 | 24.5 | -26.3 | -78.3 | -119.3-30.6 |
Fish | 1210 | 10.8 | 17.9 | -0.3 | -2.7 | -34.4-30.9 |
Fruits | 1207 | 214.7 | 304.1 | 12.9 | 6.2 | -392.9-650.5 |
Vegetables | 1192 | 137.3 | 158.2 | -36.8 | -23.6 | -370.2-263.6 |
Pasta/rice | 1208 | 52.4 | 61.2 | 35.0 | 100.3 | -36.8-183.3 |
Potatoes | 1207 | 79.6 | 79.0 | 18.0 | 25.5 | -102.7-196.9 |
Potato products | 1209 | 21.4 | 45.5 | 0.4 | 1.9 | -62.1-64.3 |
Fast food4 | 1209 | 22.7 | 72.2 | -11.3 | -39.8 | -110.4-41.8 |
Ketchup/mayonnaise | 1205 | 4.2 | 9.9 | -1.5 | -30.0 | -25.5-14.2 |
Cakes/pastries | 1208 | 25.1 | 36.2 | 6.1 | 27.7 | -52.9-97.5 |
Cookies | 1203 | 5.8 | 10.5 | -1.1 | -17.5 | -36.7-23.5 |
Sweets5 | 1201 | 28.8 | 53.5 | -10.0 | -29.6 | -97.8-70.3 |
Ice cream | 1205 | 34.2 | 100.2 | 22.0 | 95.0 | -20.5-150 |
Pudding/rice pudding | 1212 | 17.1 | 37.1 | -6.6 | -32.4 | -94.9-52.4 |
Pancakes | 1211 | 12.7 | 55.0 | 3.7 | 34.1 | -30.1-35.7 |
Sweet spreads | 1208 | 5.1 | 8.9 | -3.0 | -45.8 | -33.1-14.1 |
Hazelnut spread | 1205 | 6.0 | 12.4 | -3.3 | -43.1 | -40-13.7 |
Salty snacks | 1211 | 10.0 | 30.8 | 2.4 | 27.3 | -24.4-36.8 |
Nuts | 1210 | 1.3 | 5.3 | -1.2 | -64.9 | -18.9-5.4 |