“…Costs for OHSS were estimated using average costs for gynecologic outpatient visits and inpatient admissions in the Grampian region of Scotland (www.isdscotland.org/isd/costs-book-detailed-tables.js). OHSS was defined as mild, moderate, or severe (19). It was assumed that, on average, mild OHSS would require two outpatient consultations, moderate OHSS would require 2 days of hospital admission and two outpatient consultations, and severe OHSS would require 5 days of hospital admission and two outpatient attendances (based on clinical judgement and average practice in our center).…”