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Table 3 ICC 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)
ICC 95% CI ICC 95% CI ICC 95% CI ICC 95% CI ICC 95% CI ICC 95% CI ICC 95% CI ICC 95% CI ICC 95% CI
Health
 Self-Rated Health 0.73 0.68–0.77 0.65 0.55–0.73 0.78 0.72–0.82 0.82 0.74–0.88 0.73 0.63–0.81 0.71 0.60–0.79 0.68 0.56–0.77 0.72 0.66–0.78 0.74 0.67–0.80
 Life Satisfaction 0.79 0.75–0.83 0.80 0.73–0.85 0.79 0.73–0.83 0.77 0.65–0.85 0.81 0.72–0.87 0.85 0.79–0.89 0.73 0.63–0.81 0.82 0.76–0.86 0.76 0.68–0.81
Health complaints
 Headache 0.48 0.40–0.55 0.43 0.29–0.55 0.51 0.40–0.60 0.43 0.23–0.60 0.59 0.45–0.71 0.57 0.43–0.69 0.32 0.14–0.48 0.51 0.41–0.61 0.44 0.31–0.55
 Stomach ache 0.56 0.48–0.62 0.61 0.50–0.70 0.52 0.42–0.61 0.64 0.48–0.77 0.37 0.19–0.54 0.61 0.48–0.72 0.57 0.43–0.70 0.59 0.49–0.67 0.51 0.39–0.61
 Backache 0.46 0.37–0.54 0.45 0.31–0.57 0.46 0.35–0.56 0.41 0.18–0.59 0.50 0.34–0.64 0.55 0.40–0.67 0.35 0.17–0.51 0.47 0.36–0.57 0.44 0.30–0.55
 Feeling low 0.53 0.45–0.60 0.54 0.41–0.64 0.51 0.41–0.60 0.39 0.17–0.57 0.61 0.46–0.72 0.52 0.36–0.64 0.52 0.36–0.65 0.60 0.51–0.68 0.44 0.31–0.55
 Irritability 0.51 0.43–0.58 0.50 0.36–0.61 0.51 0.41–0.60 0.36 0.13–0.55 0.49 0.32–0.63 0.52 0.37–0.65 0.62 0.49–0.73 0.53 0.42–0.62 0.48 0.36–0.59
 Nervous 0.43 0.35–0.51 0.39 0.24–0.51 0.46 0.35–0.55 0.52 0.33–0.67 0.40 0.22–0.56 0.30 0.11–0.46 0.51 0.35–0.64 0.50 0.39–0.60 0.34 0.20–0.46
 Sleep difficulties 0.57 0.50–0.63 0.44 0.31–0.56 0.65 0.56–0.71 0.46 0.24–0.63 0.48 0.32–0.62 0.70 0.59–0.79 0.59 0.45–0.70 0.56 0.46–0.65 0.55 0.43–0.65
 Feeling dizzy 0.47 0.39–0.55 0.24 0.08–0.39 0.57 0.48–0.65 0.51 0.32–0.66 0.37 0.18–0.52 0.57 0.42–0.69 0.43 0.26–0.57 0.42 0.30–0.52 0.55 0.43–0.64
Physical activity
 MVPA 0.58 0.51–0.64 0.55 0.44–0.65 0.54 0.44–0.62 0.63 0.48–0.80 0.68 0.56–0.77 0.60 0.43–0.68 0.45 0.29–0.60 0.49 0.38–0.59 0.67 0.58–0.74
 VPA 0.57 0.50–0.63 0.49 0.36–0.60 0.51 0.41–0.60 0.55 0.37–0.69 0.48 0.32–0.61 0.61 0.47–0.71 0.64 0.51–0.74 0.52 0.42–0.61 0.61 0.52–0.70
Screen-time
 Gaming 0.62 0.55–0.68 0.60 0.50–0.69 0.63 0.54–0.70 0.62 0.46–0.74 0.67 0.56–0.77 0.52 0.37–0.64 0.64 0.51–0.74 0.65 0.57–0.72 0.55 0.44–0.64
 Social media 0.72 0.67–0.77 0.57 0.45–0.66 0.77 0.71–0.81 0.45 0.25–0.61 0.73 0.63–0.81 0.68 0.57–0.77 0.77 0.68–0.84 0.73 0.66–0.79 0.71 0.63–0.77
 Internet videos 0.67 0.61–0.72 0.55 0.44–0.65 0.72 0.65–0.78 0.72 0.59–0.81 0.67 0.56–0.77 0.65 0.53–0.75 0.61 0.48–0.72 0.63 0.54–0.70 0.71 0.63–0.77
 TV, DVD 0.51 0.44–0.58 0.58 0.46–0.67 0.47 0.37–0.56 0.69 0.55–0.79 0.34 0.16–0.49 0.49 0.34–0.62 0.63 0.50–0.73 0.56 0.50–0.64 0.45 0.33–0.56
Eating behaviour
 Breakfast 0.54 0.46–0.61 0.40 0.26–0.56 0.61 0.53–0.69 0.45 0.25–0.61 0.50 0.34–0.64 0.65 0.52–0.74 0.55 0.40–0.67 0.57 0.47–0.65 0.50 0.38–0.60
 Fruit 0.56 0.49–0.62 0.51 0.39–0.62 0.60 0.51–0.67 0.52 0.34–0.67 0.53 0.38–0.65 0.60 0.47–0.70 0.58 0.43–0.70 0.56 0.46–0.64 0.56 0.46–0.66
 Vegetable 0.65 0.60–0.70 0.59 0.47–0.68 0.70 0.63–0.76 0.57 0.40–0.70 0.66 0.54–0.76 0.76 0.67–0.83 0.60 0.46–0.71 0.64 0.55–0.71 0.68 0.59–0.75
 Sweets 0.57 0.50–0.63 0.42 0.28–0.54 0.65 0.56–0.71 0.40 0.18–0.57 0.58 0.44–0.69 0.62 0.49–0.72 0.57 0.42–0.68 0.53 0.42–0.61 0.59 0.49–0.68
 Soft-Drinks 0.60 0.53–0.66 0.55 0.44–0.65 0.63 0.54–0.70 0.50 0.31–0.65 0.62 0.49–0.72 0.72 0.62–0.80 0.47 0.31–0.61 0.57 0.47–0.66 0.58 0.47–0.66