Data collection and follow-up
Data were identified using diagnostic codes in billing records.
Preoperative and postoperative clinical information was collected,
including age; other general patient details; number of cesarean
sections; history of menstrual conditions; position of the uterus;
hemoglobin level on the first postoperative day; length of
hospitalization; hospitalization cost; and CSD length, width, and depth;
and the TRM. All patients were required to undergo examinations at 3-
and 6-months after surgery to obtain information on menstruation,
measure the CSD scar, and undergo MRI or TVS. Patients who failed to
return in a timely manner were followed-up by telephone. Information was
collected from patients by telephone who tried to become pregnant.