Table 2 Mean difference and correlation coefficient of food intakes between the IOS and the 7DFD (n = 221)

Energy (kcal)

1668.5 ± 442.0

1607.0

2057.0 ± 501.9

1950.2

< 0.001

0.74*

Protein (g)

67.5 ± 18.8

66.3

84.8 ± 25.9

81.4

< 0.001

0.70*

Fat (g)

67.8 ± 23.7

65.1

82.4 ± 24.9

77.9

< 0.001

0.81*

Carbohydrate (g)

201.9 ± 58.6

198.6

251.8 ± 69.3

241.9

< 0.001

0.75*

Cereals (g)

184.8 ± 63.6

178.1

208.0 ± 72.3

199.0

< 0.001

0.82*

Tubers (g)

31.7 ± 30.8

25.9

38.1 ± 33.3

30.0

< 0.001

0.85*

Vegetables (g)

199.2 ± 102.1

184.5

202.1 ± 102.7

183.8

0.361

0.87*

Fruits (g)

21.2 ± 32.7

5.8

111.2 ± 127.5

72.1

< 0.001

0.37*

Animal-sourced foods (g)

250.3 ± 92.3

241.3

294.5 ± 98.5

282.8

< 0.001

0.82*

Milk and dairy products (g)

20.6 ± 43.1

0.0

89.9 ± 91

72.9

< 0.001

0.29*

Soybeans and nuts (g)

20.3 ± 13

18.3

22.3 ± 14.1

19.9

< 0.001

0.88*

Salt equivalents (g) ^c

7.2 ± 2.7

6.9

8.0 ± 2.6

7.7

< 0.001

0.78*

Oil (g)

30.5 ± 11.5

30.0

35.1 ± 11.1

34.2

< 0.001

0.79*

Added sugar(g)

10.1 ± 6.0

9.2

20.4 ± 12.3

17.6

< 0.001

0.52*