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Table 1 Characteristics of the subjects

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

Characteristic

N

%

Gender

  

Boy

822

47.6

Girl

904

52.4

Age group (years)

  

11.0-12.9

407

23.6

13.0-13.9

490

28.4

14.0-14.9

557

32.3

15.0-16.9

272

15.7

Household economic status a

  

Highest

583

33.8

Middle

588

34.1

Lowest

555

32.2

Area of residence

  

Urban

1385

80.2

Suburb

341

19.8

BMI categories b

  

Normal weight

1483

85.9

Overweight/Obesity

243

14.1

Total

1726

100.0

  1. a Calculated from a list of 13 household facilities using principal components method [38], then ranked and divided into tertiles.
  2. 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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