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Table 2 Number of adolescent participants by persistent BMI category in the Millennium Cohort Study, UK 2000–2018

From: Risk factors of persistent adolescent thinness: findings from the UK Millennium Cohort Study

BMI Category

Number

Percentage

Persistently Underweight

231

3.1%

Persistently Healthy Weight

3805

49.3%

Persistently Overweight

458

5.9%

Persistently Obese

238

3.1%

BMI category changed during adolescence

2989

38.7%

  1. BMI categories are determined by International Obesity Task Force cut-offs according to age and gender
  2. BMI was measured at ages 11, 14 and 17