When they rate schools by something more than raw results then it might be interesting.
I haven't looked at the tables themselves, but according to the BBC article other factors were taken into account.
The number of A* to C graded GCSEs pupils gain is often used as a key indicator to a school's success.
But Ms Miller [a data journalist for Trinity Mirror's regional team] said other factors were important.
One important area of analysis is the value-added score, which is the amount a child improves across their time at the school.
Trinity Mirror has also looked at pupil-teacher ratios, attendance, truancy rates and what happened to students after their GCSEs: did they go on to further education, find employment or become a NEET?