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Table 4 Cohen’s kappa for selected items of HBSC questionnaire by sex, grade and residence

From: Test–retest reliability of selected HBSC items in Vietnam: well-being, physical and sedentary activities, and eating behaviours

Variables

ALL (n = 410)

Boys (n = 165)

Girls (n = 245)

6 (n = 77)

7 (n = 110)

8 (n = 115)

9 (n = 108)

Urban (n = 222)

Rural (n = 188)

Cohen’s Kappa

Cohen’s Kappa

Cohen’s Kappa

Cohen’s Kappa

Cohen’s Kappa

Cohen’s Kappa

Cohen’s Kappa

Cohen’s Kappa

Cohen’s Kappa

Health

 Self-Rated Health

0.67**

0.56**

0.73**

0.73**

0.65**

0.61**

0.66**

0.63**

0.71**

 Life Satisfaction

0.77**

0.70**

0.81**

0.79**

0.80**

0.76**

0.72**

0.80**

0.73**

Health complaints

 Headache

0.35**

0.37**

0.33**

0.36*

0.51**

0.31*

0.23*

0.40**

0.29**

 Stomach ache

0.47**

0.58**

0.41**

0.58**

0.49**

0.53**

0.34**

0.51**

0.42**

 Backache

0.35**

0.37**

0.34**

0.29*

0.39**

0.37**

0.34**

0.42**

0.25*

 Feeling low

0.40**

0.45**

0.37**

0.35*

0.50**

0.37**

0.36**

0.43**

0.37**

 Irritability

0.40**

0.41**

0.39**

0.26

0.39**

0.44**

0.44**

0.41**

0.40**

 Nervous

0.35**

0.24*

0.40**

0.37*

0.34*

0.29*

0.39**

0.41**

0.27**

 Sleep difficulties

0.43**

0.34**

0.48**

0.36*

0.37**

0.51**

0.47**

0.42**

0.42**

 Feeling dizzy

0.33**

0.10

0.42**

0.42**

0.25*

0.33*

0.34**

0.28**

0.40**

Physical activity

 MVPA

0.46**

0.46**

0.37**

0.31*

0.53**

0.65**

0.36**

0.37**

0.55**

 VPA

0.42**

0.43**

0.22*

0.31*

0.43**

0.31*

0.51**

0.30**

0.56**

Screen-time

 Gaming

0.50**

0.48**

0.51**

0.67**

0.46**

0.45**

0.49**

0.51**

0.47**

 Social media

0.53**

0.41**

0.55**

0.31*

0.45**

0.46**

0.64**

0.53**

0.53**

 Internet Videos

0.52**

0.46**

0.53**

0.53**

0.48**

0.52**

0.50**

0.45**

0.60**

 TV, DVD

0.42**

0.49**

0.38**

0.49**

0.50**

0.31*

0.44**

0.39**

0.46**

Eating behaviour

 Breakfast

0.57**

0.57**

0.57**

0.42**

0.52**

0.65**

0.64**

0.63**

0.50**

 Fruit

0.46**

0.39**

0.50**

0.41**

0.46**

0.40**

0.53**

0.46**

0.46**

 Vegetable

0.50**

0.46**

0.53**

0.48**

0.54**

0.53**

0.43**

0.55**

0.44**

 Sweets

0.38**

0.22*

0.44**

-0.05

0.45**

0.35**

0.39**

0.29**

0.44**

 Soft-Drinks

0.43**

0.35**

0.48**

0.26*

0.46**

0.52**

0.37**

0.45**

0.39**

  1. *p < 0.05, **p < 0.001