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Table 2 Accuracy of parent-reported weight and height among preschool children: comparing parental measurements with parental estimates

From: Validity of parent-reported weight and height of preschool children measured at home or estimated without home measurement: a validation study

Reporting method used by parents Parent reported Index Measured Difference P* ICC
  Mean (SD) Mean (SD) Mean (SD)   Intraclass correlation 95% CI
Weight (kg) (weight was estimated) (n = 71) 18.4 (3.8) 19.2 (3.7) -0.75 (2.4) 0.009 0.793 (0.677-0.869)
Weight (kg) (weight was measured) (n = 204) 18.2 (3.4) 18.8 (3.5) -0.60 (1.0) < 0.001 0.942 (0.864-0.969)
Height (cm) (height was estimated) (n = 94) 109.0 (8.0) 108.7 (7.3) +0.27 (4.7) 0.578 0.811 (0.728-0.870)
Height (cm) (height was measured) (n = 183) 109.2 (8.3) 109.0 (7.9) +0.17 (2.5) 0.370 0.951 (0.935-0.963)
BMI (kg/m²) (weight and/or height were estimated) (n = 104) 15.3 (2.2) 15.9 (1.7) -0.56 (2.0) < 0.006 0.456 (0.288-0.596)
BMI (kg/m²) (weight and height were measured) (n = 162) 15.2 (1.4) 15.8 (1.5) -0.55 (1.1) < 0.001 0.671 (0.485-0.783)
  1. * According to the Paired samples t-test
  2. ICC: Intraclass correlation coefficient