If blood loss had not been controlled after the use of uterotonics, second-line therapies were administered. Patients with 500–700 mL of blood loss before application of second-line therapy consisting of intrauterine gauze tamponade or B-Lynch suture were designated as group 1. Patients with more than 700 mL of blood loss before application of intrauterine gauze tamponade or B-Lynch suture were designated as group 2.