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. 2017 Oct 12;19(10):e332. doi: 10.2196/jmir.7748

Table 3.

Validity estimates for the home environment features (N=15).

Home environment feature Intraclass correlations (95% CI) Kappa (95% CI) % Agreement
Food availability



Fresh fruita b 100

Tinned fruit b 60

Dried fruit 0.39 (0.06 to 0.72) 67

Frozen fruita b 80

Fresh vegetablesa b 93

Tinned vegetables 0.12 (–0.11 to 0.35) 53

Frozen vegetables 0.11 (–0.09 to 0.30) 40

Savory snacksa 0.45 (0.04 to 0.87) 73

Sweet snacks 0.13 (–0.07 to 0.32) 33

Confectionery 0.31 (–0.07 to 0.69) 60

Fruit juicea 0.59 (0.16 to 1.01) 80

Squasha 0.51 (0.06 to 0.97) 80

Fizzy drinks 0.19 (–0.35 to 0.72) 73

Smoothiesa 0.44 (–0.17 to 1.06) 87

Skimmed/semi-skimmed milka 0.47 (0.07 to 0.88) 80

Full-fat milka 0.73 (0.41 to 1.04) 87
Food variety



Fresh fruita 0.43 (–0.09 to 0.76)

Tinned fruit b

Dried fruit 0.19 (–0.34 to 0.63)

Frozen fruit b

Fresh vegetablesa 0.72 (0.35 – 0.90)

Tinned vegetables 0.28 (–0.25 to 0.68)

Frozen vegetables 0.00 (–0.49 to 0.50)

Savory snacks 0.37 (–0.15 to 0.73)

Sweet snacksa 0.46 (–0.04 to 0.78)

Confectionery 0.38 (–0.14 to 0.74)
Food displayed



Any fruita b 93

Ready-to-eat vegetablesa b 87

Savory snacksa b 100

Sweet snacks –0.19 (–0.40 to 0.02) 67

Confectionerya –0.07 (–0.19 to 0.05)c 87

Fruit juicea b 100

Squasha 0.76 (0.26 to 1.26) 93

Fizzy drinksa b 93

Smoothiesa b 100
Family meals



Breakfasta b 100

Luncha b 83

Dinnera 0.63 (–0.09 to 1.35) 92
Child eating while watching TV



Breakfast b 77

Luncha b 92

Dinnera 0.63 (–0.16 to 1.41) 92

Snacks 0.10 (–0.36 to 0.57) 64
Activity facilities



Gardena 0.67 (0.26 to 1.07) 87

Garden equipmenta 0.63 (–0.03 to 1.28) 92
Household media equipment



Number of TVs 0.97 (0.92 to 0.99)

Number of VCR/DVD playersa 0.82 (0.55 to 0.94)

Number of computers 0.30 (–0.23 to 0.69)

Number of games consolesa 0.55 (0.08 to 0.82)

Presence of cable or satellitea b 100
Child’s bedroom media equipment



TVa 0.76 (0.27 to 1.25) 93

Computera b 100

Consolea 0.63 (–0.06 to 1.33) 93
Caregiver TV viewing (hours)



Weekdaya 0.55 (–0.13 to 0.88)

Weekenda 0.57 (–0.15 to 0.90)

aFeature has satisfactory validity.

bICC was not calculated due to zero variance items or kappa could not be calculated due to cell counts equalling zero.

cThere was just one yes response at the time of the HEI and one yes response captured by SenseCam (ppos was 0.00, but pneg was high [0.93]).