<sod >The Prime Minister said: "If he wants to talk about figures and about targets being missed, yes, the latest figures show that, in England, 497 people were waiting more than 12 hours, but the latest figures also show that, under the Labour Government in Wales, 3,741 people were waiting more than 12 hours." Mr Jones wrote to the UK Statistics Authority (UKSA) to complain of the PM's "misleading" comments, and warning: "Selective misuse of statistics like this does not allow for a fair debate on the NHS. "Research such as the OECD Review of Health Care Quality showed that there was no consistent picture of one nation's health system performing better than another.< eod>< sod > The Prime Minister said: "If he wants to talk about figures and about targets being missed, yes, the latest figures show that, in England, 497 people were waiting more than 12 hours, but the latest figures also show that, under the Labour Government in Wales, 3,741 people were waiting more than 12 hours." Hospitals in England measure 12-hour waits from when a doctorÂ has seen the patient and decided they should be admitted, whereas in Wales the clock starts ticking as soon as the patient registers in A&amp;< eod>