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Table 2 Rates of dichotomous health behaviour responses and means during Test–Retest

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

  Test (n = 410) Mean SD Retest (n = 410) Mean SD p (%)
% %
Health
 Self-rated health 48.0 1.67 0.73 46.1 1.70 0.75 0.71
 Life satisfaction 52.5 7.37 1.82 54.6 7.38 1.86 0.67
Health complaints
 Headache 16.8 4.24 1.28 16.2 4.26 1.22 0.93
 Stomach ache 10.6 4.47 1.07 9.5 4.51 0.99 0.87
 Backache 11.8 4.42 1.11 12.6 4.32 1.18 0.91
 Feeling low 44.4 3.07 1.60 44.4 3.04 1.52 1
 Irritability 39.8 3.32 1.60 35.4 3.36 1.51 0.44
 Nervous 36.8 3.36 1.58 38.9 3.35 1.55 0.71
 Difficult sleep 16.8 4.27 1.30 19.9 4.14 1.36 0.63
 Feeling dizzy 14.1 4.35 1.19 14.2 4.35 1.17 0.99
Physical activity
 MVPA 14.5 3.18 2.21 15.6 3.06 2.32 0.87
 VPA 22.1 3.82 1.79 22.9 3.97 1.90 0.90
Screen-time
 Gaming 62.5 3.23 1.88 61.0 3.28 1.94 0.73
 Social media 67.2 3.20 2.06 69.2 3.18 2.08 0.61
 Internet videos 57.6 3.69 1.88 55.4 3.66 1.90 0.63
 TV, DVD 71.1 2.93 1.91 71.0 2.85 1.77 0.98
Eating behaviour
 Breakfast 62.5 4.91 1.68 62.3 4.96 1.60 0.96
 Fruit 38.8 4.80 1.68 36.2 4.61 1.74 0.64
 Vegetables 50.0 5.03 1.88 53.0 5.11 1.75 0.54
 Sweets 13.3 3.35 1.73 16.2 3.40 1.72 0.66
 Soft-Drinks 19.4 3.75 1.76 21.0 3.76 1.77 0.80
  1. % represents the percentage responses rates of dichotomous items; mean represents the response value on whole-scale of items; p—value based on chi-square test