Heather Hipp1,2, Sara Crawford3, Jennifer F Kawwass4,3, Sheree L Boulet3, David A Grainger5, Dmitry M Kissin3, Denise Jamieson3. 1. Division of Reproductive Endocrinology and Infertility, Emory University School of Medicine, Emory University, 550 Peachtree Street, Suite 1800, Atlanta, GA, 30308, USA. hhipp@emory.edu. 2. Division of Reproductive Health, US Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA. hhipp@emory.edu. 3. Division of Reproductive Health, US Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA. 4. Division of Reproductive Endocrinology and Infertility, Emory University School of Medicine, Emory University, 550 Peachtree Street, Suite 1800, Atlanta, GA, 30308, USA. 5. The Center for Reproductive Medicine, 9300 E. 29th Street N., Suite 102, Wichita, KS, 67226, USA.
Abstract
PURPOSE: The purpose of the study was to describe trends in and investigate variables associated with clinical pregnancy and live birth in autologous in vitro fertilization (IVF) cycles among women ≥40 years. METHODS: We used autologous IVF cycle data from the National ART Surveillance System (NASS) for women ≥40 years at cycle start. We assessed trends in fresh and frozen cycles (n = 371,536) from 1996 to 2013. We reported perinatal outcomes and determined variables associated with clinical pregnancy and live birth in fresh cycles between 2007 and 2013. RESULTS: From 1996 to 2013, the total number of cycles in women ≥40 years increased from 8672 to 28,883 (p < 0.0001), with frozen cycles almost tripling in the last 8 years. Cycles in women ≥40 years accounted for 16.0% of all cycles in 1996 and 21.0% in 2013 (p < 0.0001). For fresh cycles from 2007 to 2013 (n = 157,890), the cancelation rate was 17.1%. Among cycles resulting in transfer (n = 112,414), the live birth rate was 16.1%. The following were associated with higher live birth rates: multiparity, fewer prior ART cycles, use of standard agonist or antagonist stimulation, lower gonadotropin dose, ovarian hyperstimulation syndrome, more oocytes retrieved, use of pre-implantation genetic screening/diagnosis, transferring more and/or blastocyst stage embryos, and cryopreserving more supernumerary embryos. Of the singleton infants born (n = 14,992), 86.9% were full term and 88.3% normal birth weight. CONCLUSIONS: The NASS allows for a comprehensive description of IVF cycles in women ≥40 years in the USA. Although live birth rate is less than 20%, identifying factors associated with IVF success can facilitate treatment option counseling.
PURPOSE: The purpose of the study was to describe trends in and investigate variables associated with clinical pregnancy and live birth in autologous in vitro fertilization (IVF) cycles among women ≥40 years. METHODS: We used autologous IVF cycle data from the National ART Surveillance System (NASS) for women ≥40 years at cycle start. We assessed trends in fresh and frozen cycles (n = 371,536) from 1996 to 2013. We reported perinatal outcomes and determined variables associated with clinical pregnancy and live birth in fresh cycles between 2007 and 2013. RESULTS: From 1996 to 2013, the total number of cycles in women ≥40 years increased from 8672 to 28,883 (p < 0.0001), with frozen cycles almost tripling in the last 8 years. Cycles in women ≥40 years accounted for 16.0% of all cycles in 1996 and 21.0% in 2013 (p < 0.0001). For fresh cycles from 2007 to 2013 (n = 157,890), the cancelation rate was 17.1%. Among cycles resulting in transfer (n = 112,414), the live birth rate was 16.1%. The following were associated with higher live birth rates: multiparity, fewer prior ART cycles, use of standard agonist or antagonist stimulation, lower gonadotropin dose, ovarian hyperstimulation syndrome, more oocytes retrieved, use of pre-implantation genetic screening/diagnosis, transferring more and/or blastocyst stage embryos, and cryopreserving more supernumerary embryos. Of the singleton infants born (n = 14,992), 86.9% were full term and 88.3% normal birth weight. CONCLUSIONS: The NASS allows for a comprehensive description of IVF cycles in women ≥40 years in the USA. Although live birth rate is less than 20%, identifying factors associated with IVF success can facilitate treatment option counseling.
Entities:
Keywords:
40 years and over; In vitro fertilization (IVF); Infertility; Older women
Authors: Marinus J C Eijkemans; Frans van Poppel; Dik F Habbema; Ken R Smith; Henri Leridon; Egbert R te Velde Journal: Hum Reprod Date: 2014-03-27 Impact factor: 6.918
Authors: Heather S Hipp; Sara Crawford; Sheree Boulet; James Toner; Amy A E Sparks; Jennifer F Kawwass Journal: JAMA Date: 2022-04-05 Impact factor: 157.335