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Table 3 Test–retest reliability of the questionnaire (retest after 2 weeks)

From: A feasible and reliable self-administered parental assessment of children’s lifestyle (SAPLACL): an ancillary study based on the VIF program

  Number of items Agreement (%) Reliability indexa
Part 1: Dietary habits
 Take Breakfast during school day 1 100 0.81 (0.57–1.00)
 Take Breakfast during school free day 1 100 1.00 (1.00–1.00)
 What 9 67.2 to 90.60 0.65 (0.27–0.81)
 Take Morning snacking 1 87.5 0.85 (0.75–0.95)
 Lunch school 1 96.9 0.96 (0.91–1.00)
 Afternoon snacking 1 95.3 0.55 (0.09–1.00)
 Snacking front of the TV 1 96.8 0.86 (0.66–1.00)
 Foods intake 9 54.7 to 81.2 0.53 (0.27–0.60)
 Drink intake 6 56.1 to 95.2 0.63 (0.33—0.76)
Part 2: Lifestyle habits
 Sleep week 1 NA 0.84 (0.75–0.90)b
 Sleep weekend 1 NA 0.84 (0.75–0.90)b
 Mode of commuting to school 1 96.5 0.90 (0.76–1.00)
 Screen 5 91.7 to 100 0.93 (0.82–1.00)
Part 3: Physical activity habits
 Physical Activity in Sport Club 1 94.9 0.87 (0.72–1)
 Leisure Physical Activity 1 90.2 0.80 (0.65–0.95)
 Awareness Physical Activity perception 1 NA 0.66 (0.50–0.78)
  1. NA: not applicable,
  2. aReliability index indicates the Kappa value (95%Confidence interval (CI)) or the median (range) of Kappa individual items values in case of multiple items per dimension unless otherwise as indicated
  3. bIntraclass correlation coefficient (95%CI)