Cesarean deliveries have increased over the last 15 years in Washington state — for no apparent medical reason. Now hospitals around the state are trying to bring those rates back down. In an unprecedented series on C-section rates in our region, KUOW combed through individual hospital records to create a database of C-section rates at every hospital in Washington state over the last 15 years. The series examines why some rates are sky high — and what is being done to reverse this alarming trend.