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Table 3 Comparisons of self-reported and direct measures of height among 11- to 15 year old adolescents by height measuring history, recall ability for height and response capability for height

From: Validity of self-reported height and weight among adolescents: the importance of reporting capability

  N Height/self-reported (cm) Height/direct (cm) Difference for height (cm)
   Mean SD Mean SD Mean SD 95% CI P value*
Boys 839 164.51 13.11 164.26 12.77 0.25 3.47 0.02; 0.49 0.0340
Girls 886 160.37 9.53 160.22 9.02 0.15 2.81 −0.04; 0.34 0.1108
Height measuring history          
Boys          
Measured recently 679 164.12 13.21 163.89 12.96 0.23 3.25 −0.02; 0.47 0.0669
Not measured recently 155 166.27 12.64 165.79 11.99 0.48 4.27 −0.20; 1.15 0.1669
Girls          
Measured recently 692 160.11 9.60 159.96 9.18 0.15 2.62 −0.05; 0.34 0.1427
Not measured recently 190 161.31 9.33 161.09 8.45 0.22 3.42 −0.27; 0.71 0.3713
Recall ability for height          
Boys          
High recall ability 707 164.62 13.36 164.28 13.02 0.34 3.21 0.11; 0.58 0.0046
Low recall ability 127 163.81 11.87 164.00 11.59 −0.19 4.70 −1.02; 0.63 0.6416
Girls          
High recall ability 746 160.39 9.59 160.20 9.21 0.19 2.56 0.01; 0.38 0.0409
Low recall ability 133 160.16 9.29 160.17 8.02 −0.01 3.91 −0.68; 0.66 0.9788
Response capability for height          
Boys          
Measured recently + high recall ability 612 164.38 13.39 164.09 13.10 0.29 3.12 0.04; 0.54 0.0225
Measured recently + low recall ability 66 161.77 11.23 162.11 11.65 −0.34 4.23 −1.38; 0.70 0.5145
Not measured recently + high recall ability 94 166.43 12.96 165.62 12.49 0.81 3.54 0.08; 1.53 0.0291
Not measured recently + low recall ability 61 166.02 12.23 166.06 11.27 −0.04 5.19 −1.37; 1.29 0.9569
Girls          
Measured recently + high recall ability 631 160.08 9.74 159.92 9.38 0.16 2.49 −0.03; 0.36 0.1052
Measured recently + low recall ability 60 160.50 7.97 160.42 6.90 0.08 3.66 −0.86; 1.03 0.8605
Not measured recently + high recall ability 115 162.09 8.55 161.73 8.12 0.36 2.89 −0.17; 0.89 0.1842
Not measured recently + low recall ability 73 159.87 10.30 159.96 8.88 −0.09 4.12 −1.05; 0.88 0.8607
  1. * Paired T-test.