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Table 1 Descriptive characteristics of the study subjects

From: Association between actual weight status, perceived weight and depressive, anxious symptoms in Chinese adolescents: a cross-sectional study

  Boys
(n = 665)
Girls
(n = 479)
All
(n = 1144)
Age (Mean ± SD) 14.5 ± 1.8 14.4 ± 1.9 14.4 ± 1.8
Residence (%)    
Urban 39.9 37.9 38.7
Rural 60.1 62.1 61.3
Weight (kg, Mean ± SD) 51.3 ± 10.7 48.6 ± 9.3 50.2 ± 10.2
Height (cm, Mean ± SD) 161.4 ± 9.2 157.3 ± 6.9 159.7 ± 8.6
BMI (kg/m2, Mean ± SD) 19.5 ± 2.9 19.5 ± 3.1 19.5 ± 3.0
Weight status (%)*    
   Overweight 13.2 11.5 12.5
Urban 27.4 16.8 22.7
Rural 4.6 8.0 6.0
   Normal 83.2 86.0 84.4
Urban 71.8 82.2 76.4
Rural 90.1 88.5 89.4
   Underweight 3.6 2.5 3.1
Urban 0.8 1.0 0.9
Rural 5.3 3.5 4.6
Perceived weight status (%)    
   Too thin 7.2 2.7 5.3
Urban 4.4 3.1 3.8
Rural 9.0 2.4 6.3
   Relative thin 34.1 17.3 27.1
Urban 31.3 18.8 27.8
Rural 35.8 16.3 26.0
   All right 44.2 55.1 48.8
Urban 43.7 47.1 51.1
Rural 44.6 60.4 45.1
   Relative heavy 12.9 23.6 17.4
Urban 17.5 29.8 14.0
Rural 10.2 19.4 22.8
   Too heavy 1.5 1.3 1.4
Urban 3.2 1.0 0.9
Rural 0.5 1.4 2.3
  1. *: Overweight and underweight both were defined according to the norm (2007) provided by WHO. Overweight: age- and sex-specific over Mean + SD; underweight: age- and sex-specific over Mean - 2SD. More details please link to http://www.who.int/growthref/who2007_bmi_for_age/en/index.html