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Table 2 Inter-rater reliability for the classification of claims according to the INFORMAS taxonomy (n = 436)

From: Estimated effects of the implementation of the Mexican warning labels regulation on the use of health and nutrition claims on packaged foods

 

Rater 1

Rater 2

P-Value

K

 

n

%

n

%

  

Health-related ingredient claim

60

13.8

61

14.0

0.992

0.8744

Nutrient content claim

158

36.2

159

36.5

0.955

0.9314

Nutrient comparative claim

40

9.2

44

10.1

0.889

0.9039

General health claim

21

4.8

20

4.6

0.975

0.8775

Nutrient and other function claim

4

0.9

3

0.7

Reduction of disease risk claim

11

2.5

12

2.8

Environmental

245

56.2

247

56.7

0.911

0.9656

Other

163

37.4

165

37.8

0.940

0.9494

Numerical

78

17.9

99

22.7

0.433

0.8163

Verbal

211

48.4

216

49.5

0.820

0.8258

Symbolic

335

76.8

329

75.5

0.694

0.8743

  1. P-value for difference between two proportions. K Cohen’s Kappa Coefficient