Table 4 Sensitivity and specificity of reported and corrected outcomes.

From: Estimation and feasibility of correction modelling for mother-reported child height and weight at 2 years using data from the Australian CHAT trial

 

Model 1: Time gap between survey and objective measures≤ 7 days

Model 2: Time gap between survey and objective measures≤ 30 days

Survey

Indirect correctiona

Direct correctionb

Survey

Indirect correctiona

Direct correctionb

%

%

%

%

%

%

Sensitivity

Obese

N/Ac

N/Ac

N/Ac

0

0

N/Ad

Overweight or obese

41.7

58.3

4.2

40.8

53.1

2.0

Specificity

Obese

N/Ac

N/Ac

N/Ac

92.2

95.7

N/Ad

Overweight or obese

85.1

86.2

97.7

84.9

85.4

96.8

  1. aIndirect correction used the corrected weight and height values to calculate corrected BMI to classify overweight or obese status.
  2. bDirect correction used the corrected BMI predicted by the model to classify overweight or obese status.
  3. cN/A as no child was classified as obese based on objective measures.
  4. dN/A as no child was classified as obese based on predicted values.
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