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Table 1 Body composition and PA measures for the sample of SLIC children in the current study

From: Associations of extracurricular physical activity patterns and body composition components in a multi-ethnic population of UK children (the Size and Lung Function in Children study): a multilevel modelling analysis

Variable Number of SLIC children Percentage (%)
Age- and sex-adjusted BMI z-score
  < 5th percentile, ‘underweight’ 75 4.0
 5th–85th percentile, ‘normal weight’ 1227 64.9
 85th–95th percentile, ‘overweight’ 234 12.4
  > 95th percentile, ‘obese’ 353 18.7
ln(FMI) z-score
  < 5th percentile 56 3.0
 5th–85th percentile 1546 81.8
 85th–95th percentile 172 9.1
  > 95th percentile 115 6.1
FFMI z-score
  < 5th percentile 61 3.2
 5th–85th percentile 1564 82.8
 85th–95th percentile 167 8.9
  > 95th percentile 97 5.1
General Sports Frequency
 Never 26 1.4
 Less than weekly 73 3.8
 Weekly 476 25.2
 Most days 481 25.5
 Daily 833 44.1
Dominant mode of commuting
 Active 883 46.7
 Passive 598 31.7
 Mixed 9 0.5
 Disagreement child-parent 399 21.1
  1. PA Physical Activity, BMI Body Mass Index, FMI Fat Mass Index, FFMI Fat-Free Mass Index