Table 2

Proportion of children with normal, overweight and obese BMI at each of the three waves of data collection (N=9667, MCS3, MCS4, MCS5) and distribution of medication use (using at least 1 medication) in the whole longitudinal sample (N=29 001, MCS3, MCS4, MCS5) and by BMI group

At least one prescriptionMCS3
N (%)
MCS4
N (%)
MCS5
N (%)
Average medication use
N (%)
Any medication use
N (%)
Percentage of medication use at each time-point
Overall9667 (100)9667 (100)9667 (100)
 No25 443 (87.8)9311 (96.3)91.1
 Yes3558 (12.2)2294 (23.7)51.7
Normal weight7718 (79.8)7819 (80.9)7087 (73.3)
 No19 972 (88.3)8146 (95.4)92.4
 Yes2652 (11.7)1809 (21.2)55.6
Overweight1473 (15.2)1337 (13.8)1991 (20.6)
 No4175 (87.0)2693 (90.0)96.4
 Yes626 (13.0)509 (17.0)78.4
Obese475 (5.0)511 (5.3)589 (6.1)
 No1296 (82.2)792 (87.7)94.7
 Yes280 (17.8)198 (22.0)77.2
  • BMI, body mass index; MCS, Millennium Cohort Study.