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Table 4 Adjusted means difference between reported and measured weight, height and BMI

From: Validity of self-reported weight, height and resultant body mass index in Chinese adolescents and factors associated with errors in self-reports

 

Weight (kg)

Height (cm)

BMI (kg/m2)

Characteristic

Mean (S.E)

P

Mean (S.E)

P

Mean (S.E)

P

Gender

      

   Boy

-2.38 (0.15)

0.479

1.31 (0.11)

0.505

-1.17 (0.06)

0.043

   Girl

-2.33 (0.14)

 

1.41 (0.10)

 

-1.28 (0.06)

 

Age groups (years)

      

   11.0-12.9

-1.94 (0.22)

0.007

1.11 (0.15)

0.029

-1.06 (0.09)

0.009

   13.0-13.9

-2.41 (0.20)

 

1.29 (0.14)

 

-1.25 (0.08)

 

   14.0-14.9

-2.35 (0.18)

 

1.52 (0.13)

 

-1.25 (0.08)

 

   15.0-16.9

-2.86 (0.26)

 

1.52 (0.19)

 

-1.41 (0.11)

 

Household economic status a

      

   Poorest

-2.14 (0.18)

 

1.21 (0.13)

 

-1.12 (0.08)

 

   Median

-2.29 (0.18)

0.129

1.38 (0.13)

0.013

-1.23 (0.08)

0.041

   Richest

-2.63 (0.18)

 

1.50 (0.13)

 

-1.34 (0.08)

 

Area of residence

      

   Urban

-2.30 (0.12)

0.015

1.27 (0.08)

0.001

-1.19 (0.05)

<0.001

   Suburb

-2.56 (0.24)

 

1.71 (0.17)

 

-1.40 (0.10)

 

BMI category b

      

   Normal

-1.90 (0.11)

<0.001

1.30 (0.08)

0.026

-1.04 (0.05)

<0.001

   Overweight/Obese

-5.10 (0.28)

 

1.74 (0.20)

 

-2.37 (0.12)

 
  1. Mean difference (Mean) and standard error (S.E.) and P value were adjusted by all the other co-variables in multivariable linear regression model.
  2. a Calculated from the list of household facilities using principal components method [38], then ranked and divided into tertiles.
  3. b Category based on measured weight and height using IOTF cut-off points [36].
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BMC Public Health

ISSN: 1471-2458

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