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Table 3 Reliability and validity estimates for Food environment items from the HHS

From: Reliability and validity of the Healthy Home Survey: A tool to measure factors within homes hypothesized to relate to overweight in children

  Reliability Validity
  n %Agree Kappa (95% CI) PABAK1 Ppos Pneg n %Agree Kappa (95% CI) PABAKa SEN SPEC
Fruit in view 44 81.8 0.49 (0.19–0.79)   0.88 0.60 78 78.2 0.32 (0.06–0.57)   0.89 0.41
Vegetables ready to eat 43 79.1 0.57 (0.32–0.82)   0.82 0.74 74 75.7 0.43 (0.22–0.65)   0.79 0.67
TV in view of dining area 45 91.1 0.82 (0.65–0.99)   0.92 0.90 78 78.2 0.57 (0.38–0.75)   0.82 0.75
Adequate counter space 45 97.8 0.88 (0.64–1.00) 0.96 0.99 0.89 78 92.3 0.22 (-0.18–0.62) 0.85 0.99 0.17
Access to candy 43 86.0 0.72 (0.52–0.93)   0.87 0.83 73 60.3 0.22 (0.00–0.43)   0.57 0.68
Access to soda 41 85.4 0.71 (0.49–0.92)   0.83 0.82 65 61.5 0.26 (0.06–0.47)   0.54 0.77
Access to sweet snacks 44 81.8 0.62 (0.39–0.85)   0.77 0.85 78 65.4 0.29 (0.10–0.49)   0.63 0.73
Access to savory snacks 44 84.1 0.68 (0.47–0.90)   0.84 0.84 78 57.7 0.07 (-0.15–0.29)   0.63 0.45
  1. 1 Adjusted Kappa (PABAK) used if prevalence ≥85%; Ppos = proportion of positive agreement; Pneg = proportion of negative agreement; SEN = sensitivity (proportion of those reporting YES confirmed as YES by the home visit); SPE = specificity (proportion of those reporting NO confirmed as NO by the home visit); CI = confidence interval