Mr. John Connaghan:

I have asked the same questions myself in the short time I have had on this. I have taken some advice from one of our colleagues inside the screening service. I will ask Dr. McKenna to say a word or two on this. We need to be aware of one factor. Depending on the life or the time of the screening programme, when we make international comparisons, it must be taken into consideration, for example, if something has been started fairly recently or if it has been running for 20 years. There are differences in the detection rates and the downstream recording of high-grade versus low-grade incidences. Doing international comparisons purely on statistics around laboratories needs to be treated with a little bit of caution. This is why the faculty we are constructing to provide advice in that regard, the review by the Royal College of Obstetricians and Gynaecologists, will also be important because we need to compare not just within Ireland but also against international best practice. Perhaps Dr. McKenna would also like to say something about that.