 The original "Observer" article reported that in London, 14,700 ambulance turnarounds were longer than an hour and 332 were more than two hours when the target turnaround time is 15 minutes.However, in the context of the total number of emergency ambulance attendances by the London Ambulance Service each year (approximately 865,000), these represent just 1.6% and 0.03% of all ambulance calls.The proportion of these attributable to patients left with ambulance crews is not recorded.