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Table 5 Comparison of intakes of each food group from dietary records and food frequency questionnaires for Japanese athletes

From: Development and validation of a food frequency questionnaire for Japanese athletes (FFQJA)

 

DR (g/day)

FFQJA (g/day)

Correlation coefficient

Median

(Interquartile range)

Median

(Interquartile range)

Crude (95% CI)

Energy-adjusted (95% CI)

ICC (95% CI)

Cereals

596.4

(479.6, 818.0)

680.8

(526.4, 938.6)

0.682 (0.521–0.796)

0.431 (0.218–0.60)

0.609 (0.448–0.732)

Potatoes

34.4

(18.9, 56.4)

12.6

(6.3, 18.9)

0.207 (−0.022–0.415)

0.299 (0.074–0.495)

0.121 (−0.103–0.334)

Sugar

5.3

(3.1, 8.0)

0.0

(0.0, 4.2)

−0.005 (− 0.230–0.221)

− 0.034 (− 0.258–0.193)

0.076 (− 0.147–0.293)

Nuts and seeds

1.0

(0.2, 2.7)

0.0

(0.0, 1.1)

0.403 (0.186–0.582)

0.413 (0.198–0.590)

0.335 (0.123–0.518)

Green and yellow vegetables

78.7

(48.2, 123.8)

58.2

(32.6, 90.8)

0.385 (0.167–0.567)

0.431 (0.218–0.605)

0.302 (0.086–0.490)

Other vegetables

129.6

(101.4, 169.0)

105.6

(60.1, 159.2)

0.112 (−0.117–0.330)

0.152 (− 0.077–0.366)

− 0.024 (− 0.244–0.198)

Fruits

117.5

(54.3, 247.8)

131.9

(77.7, 302.7)

0.478 (0.271–0.643)

0.513 (0.312–0.670)

0.432 (0.233–0.596)

Mushrooms

6.4

(2.9, 11.8)

4.2

(2.1, 6.4)

0.424 (0.210–0.599)

0.488 (0.283–0.650)

0.221 (0.000–0.422)

Seaweed

2.4

(1.2, 4.7)

0.4

(0.2, 1.1)

0.123 (−0.106–0.340)

0.141 (−0.088–0.356)

0.116 (−0.108–0.329)

Beans

30.1

(13.3, 50.8)

25.6

(14.3, 43.8)

0.358 (0.137–0.545)

0.461 (0.252–0.629)

0.357 (0.147–0.536)

Fish

45.0

(26.0, 61.9)

39.3

(27.0, 63.9)

0.177 (−0.052–0.389)

0.180 (− 0.049–0.391)

0.146 (− 0.078–0.356)

Meat

151.9

(101.4, 202.5)

132.4

(97.5, 215.9)

0.421 (0.207–0.597)

0.415 (0.200–0.592)

0.379 (0.172–0.554)

Eggs

43.6

(28.0, 64.6)

42.5

(25.4, 64.0)

0.378 (0.159–0.562)

0.329 (0.106–0.521)

0.406 (0.203–0.575)

Dairy products

133.1

(75.9, 216.4)

147.8

(65.0, 258.1)

0.506 (0.304–0.665)

0.532 (0.106–0.521)

0.495 (0.308–0.646)

Oil

15.0

(10.6, 21.5)

19.3

(12.8, 27.7)

−0.147 (−0.362–0.082)

−0.271 (−0.047–[− 0.044])

− 0.157 (− 0.365–0.067)

Sweets

35.7

(12.9, 49.0)

55.7

(29.6, 89.9)

0.280 (0.054–0.479)

0.361 (0.140–.547)

0.179 (−−0.044–0.385)

Luxury drinks

82.6

(32.9, 174.9)

215.0

(52.5, 564.4)

0.313 (0.089–0.507)

0.276 (0.050–0.475)

0.212 (−0.009–0.414)

Seasonings

246.7

(196.6, 314.0)

27.3

(18.2, 40.1)

0.306 (0.081–0.501)

0.251 (0.023–0.454)

0.104 (−0.120–0.318)

  1. n = 78
  2. DR Dietary records, FFQJA Food frequency questionnaire for Japanese athletes
  3. Crude correlation coefficient: Spearman’s correlation coefficients
  4. Energy-adjusted correlation coefficients were calculated using an energy density method
  5. ICC Intraclass correlation coefficients
  6. 95% CI: 95% confidence interval