Table 3. Characteristics of the study population at baseline (n = 13,729,000 children aged 0–17 years in 2015).

Characteristic	n (%), n, or mean
Number of children (5–17 years) with obesity (IOTF)	852,000 (8.8%)
Number of children (5–17 years) with overweight (IOTF)	3,210,000 (33.1%)
Number of children (5–17 years) with obesity (UK90, > 95th centile)	2,240,000 (23.1%)
Number of children (5–17 years) with overweight (UK90, > 85th centile)	3,890,000 (40.1%)
Child impacts (4–15 years) per year for food adverts (millions)	14,200
Child impacts (4–15 years) per year for HFSS adverts (millions)	6,640
Child impacts (4–15 years) per year for HFSS adverts between 05.30 and 21.00 hours (millions)	4,740
Number of food adverts seen per child (4–15 years) per day	4.45
Number of HFSS adverts seen per child (4–15 years) per day	2.07
Number of HFSS adverts seen per child (4–15 years) per day between 05.30 and 21.00 hours	1.48

HFSS, high in fat, sugar, and salt; IOTF, International Obesity Task Force.