Table 1

Association between fast-food consumption and BMI (SE) of study participants after adjustment for GNI

 Difference in mean BMI (kg/m2) compared with infrequent fast-food consumption
Estimated mean BMI* (kg/m2) infrequent fast-food consumptionFrequent fast-food consumption: mean (SE)Very frequent fast-food consumption: mean (SE)p Value†
Children (N=72 900)16.51+0.15 (0.02)+0.22 (0.05)<0.001
 Male (N=36 778)16.53+0.16 (0.03)+0.24 (0.06)<0.001
 Female (N=36 122)16.39+0.14 (0.03)+0.20 (0.07)<0.001
Adolescents
 Male (N=98 794)20.02−0.14 (0.02)−0.28 (0.03)<0.001
 Female (N=100 341)19.98−0.19 (0.02)−0.19 (0.03)<0.001
Participants with measured height and weight data
Children (N=12 873)15.88+0.14 (0.05)+0.13 (0.08)0.02
Adolescents
 Male (N=20 384)19.67−0.03 (0.05)−0.11 (0.07)0.24
 Female (N=24 127)20.15−0.15 (0.05)−0.09 (0.06)0.004
  • *Estimated BMIs for children aged 7 years and adolescents aged 14 years.

  • †p Value is a joint test of whether the differences in BMIs for frequent and very frequent fast-food consumption relative to infrequent fast-food consumption are 0.

  • BMI, body mass index; GNI, Gross National Index.