Table 1

Demographic characteristics of participants in four groups varying in the visibility (high, low) and proportion of images (high, low) to which children were exposed

High visibility; high proportion (n=254)High visibility; low proportion (n=259)Low visibility; high proportion (n=266)Low visibility; low proportion (n=255)Total (n=1034)
Gender—female (n, %)114 (45%)116 (45%)123 (47%)110 (43%)463 (45%)
Ethnicity—White British (n, %)209 (82%)219 (85%)221 (83%)203 (80%)852 (83%)
Age—years (M, SD)14.8 (1.3)15.0 (1.3)14.8 (1.3)15.0 (1.3)14.9 (1.3)
  • M, mean; SD, standard deviation.