Table 7

The proportion of the 74 participating laboratories in house tumours submitted for run 41 that showed a higher degree of oestrogen receptor (ER) expression* when tested by the UK NEQAS organising laboratory

ER expression (participant)nER expression (organising lab)nQuick score (participant)Quick score (organising lab)%χ2 Valuep Value
*Achieved a quick score that was greater by 2 marks or more.
46 or 7
Low24High/Medium203> 483%10.6670.001
2> 3
Negative 8High 506, 663%0.5000.480
Low3, 3