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4: The results<br />
Analysis of individual image hashes<br />
by age of the child and severity of abuse<br />
Aged 0-2 27%<br />
60%<br />
14%<br />
Aged 3-6<br />
24%<br />
48%<br />
28%<br />
Aged 7-10<br />
24%<br />
37% 39%<br />
Aged 11-13<br />
19%<br />
28%<br />
53%<br />
Aged 14-15<br />
27%<br />
16%<br />
57%<br />
Aged 16-17<br />
19%<br />
53% 28%<br />
0% 20% 40% 60% 80% 100%<br />
Category A<br />
Category B<br />
Category C<br />
Note: Percentages rounded to nearest whole percent.<br />
See page 50 for explanation of severity categories.<br />
Analysis of the 471,239 hashes on the <strong>IWF</strong> Hash List<br />
at the end of <strong>2019</strong> shows that of the image hashes<br />
relating to children assessed as 10 years old or younger,<br />
64% are at the highest levels of severity (Category A or<br />
B), compared to 47% of the image hashes relating to<br />
children aged 11-17.<br />
Of the image hashes relating to babies and toddlers<br />
aged 2 and under, 87% show the most severe forms of<br />
abuse. To find out more about what a hash is, and how<br />
it helps us in our work, see page 73.<br />
49
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