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Table 2 Single measure Intraclass correlation coefficients and 95% confidence intervals for food variety and servings

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

  Variety (number of types)1 Servings (number of servings)
  Reliability (95% CI) Validity (95% CI) Reliability (95% CI) Validity (95% CI)
Fresh fruit 0.37 (0.09–0.59) 0.54 (0.37–0.68) 0.22 (-0.07 – 0.48) 0.39 (0.20–0.56)
Canned fruit 0.81 (0.68–0.89) 0.66 (0.51–0.76) 0.84 (0.72 – 0.91) 0.68 (0.55–0.78)
Frozen fruit 0.85 (0.75–0.92) 0.71 (0.59–0.81) 0.91 (0.84 – 0.95) 0.83 (0.76–0.89)
Dried fruit 0.89 (0.81–0.94) 0.88 (0.82–0.92) 0.39 (0.11 – 0.61) 0.67 (0.53–0.77)
Fresh vegetables 0.81 (0.70–0.90) 0.70 (0.57–0.80) 0.77 (0.62 – 0.87) 0.30 (0.09–0.48)
Canned vegetables 0.89 (0.81–0.94) 0.70 (0.57–0.79) 0.81 (0.68 – 0.89) 0.68 (0.54–0.78)
Frozen vegetables 0.83 (0.71–0.90) 0.82 (0.73–0.88) 0.63 (0.42 – 0.78) 0.74 (0.63–0.83)
Salty/savory snacks 0.85 (0.75–0.92) 0.48 (0.29–0.63) 0.71 (0.53 – 0.83) 0.46 (0.28–0.61)
Sweet snacks 0.65 (0.44–0.77) 0.30 (0.09–0.49) 0.64 (0.42 – 0.78) 0.32 (0.12–0.50)
Candy -2 -2 0.49 (0.23 – 0.68) 0.64 (0.50–0.75)
Soda 0.77 (0.62–0.87) 0.76 (0.65–0.85) 0.69 (0.50 – 0.82) 0.66 (0.53–0.77)
  1. 1Calculated from average serving size for each item; 2Variety of candy not calculated