“…Further search through the references of these 90 papers revealed another 9 papers, resulting in 99 being included in the final analysis . Of these 99 papers, 86 used the decision-todelivery interval as a primary or secondary performance measure [3, 4, 7-11, 14-20, 22-25, 27-29, 31-43, 45-47, 49-60, 62-73, 75-79, 81-95, 97-101] and 13 used decision-to-incision interval [5,6,12,13,21,26,30,44,48,61,74,80,96]. Of those where decision-to-delivery interval was the outcome measure, 56 out of 86 (65%) did not specify a definition for the decision.…”