Birth Outcomes · Maternal Morbidity
Osterman MJK et al., 2026 · Report
Labor and Birth · Physiologic Birth
Hock A et al., 2026
Labor and Birth · Induction of Labor
Whitley J et al., 2025
Cesarean Birth · Cesarean Indications and Rates
Liu T et al., 2025
Birth Setting and Provider · Hospital Birth
Kozhimannil KB et al., 2025
Labor and Birth · Physiologic Birth
Zabochnicki M et al., 2024
Birth Outcomes · Maternal Morbidity
Young-Wolff KC et al., 2024
Birth Outcomes · Postpartum Hemorrhage
Alonso-Burgos A et al., 2024
Birth Outcomes · Maternal Morbidity
Hassan H et al., 2023
Birth Outcomes · Maternal Morbidity
Munoz JL et al., 2023
Cesarean Birth · Vaginal Birth After Cesarean
Pineles BL et al., 2023
Birth Outcomes · Maternal Morbidity
Buskmiller C et al., 2023
Birth Outcomes · Maternal Morbidity
Buskmiller C et al., 2022
Birth Outcomes · Maternal Morbidity
Sklar A et al., 2022
Labor and Birth · Induction of Labor
Boie S et al., 2021
Labor and Birth · Induction of Labor
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Labor and Birth · Physiologic Birth
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Birth Outcomes · Maternal Morbidity
Stafford IA et al., 2020
Cesarean Birth · Cesarean Indications and Rates
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Birth Setting and Provider · Hospital Birth
Kozhimannil KB et al., 2020
Birth Outcomes · Maternal Morbidity
Claramonte Nieto M et al., 2019
Birth Outcomes · Maternal Morbidity
Jauniaux E et al., 2019
Cesarean Birth · Cesarean Indications and Rates
Zhang T et al., 2019
Birth Setting and Provider · Hospital Birth
Vedam S et al., 2019
Birth Outcomes · Maternal Morbidity
Tanos V et al., 2019
Birth Setting and Provider · Hospital Birth
Kozhimannil KB et al., 2018
Cesarean Birth · Cesarean Indications and Rates
Powell CB et al., 2017
Cesarean Birth · Cesarean Indications and Rates
Clapp MA et al., 2017
Labor and Birth · Induction of Labor
Duro-Gómez J et al., 2017
Labor and Birth · Induction of Labor
Duro-Gómez J et al., 2017
Birth Outcomes · Maternal Morbidity
Dotters-Katz SK et al., 2017
Labor and Birth · Induction of Labor
Duro Gómez J et al., 2017
Birth Setting and Provider · Hospital Birth
Hung P et al., 2016
Birth Outcomes · Maternal Morbidity
Vettori D et al., 2015
Labor and Birth · Physiologic Birth
Buckley SJ, 2015
Labor and Birth · Induction of Labor
Alsharnoubi J et al., 2015
Birth Outcomes · Maternal Morbidity
Garrido MF et al., 2013
Birth Outcomes · Maternal Mortality
Koch E et al., 2012
Cesarean Birth · Vaginal Birth After Cesarean
Marshall NE et al., 2011
Birth Outcomes · Postpartum Hemorrhage
McLintock C et al., 2011
Birth Outcomes · Maternal Morbidity
Yogev Y et al., 2010
Birth Outcomes · Maternal Morbidity
Guise JM et al., 2010
Birth Outcomes · Maternal Morbidity
Kuppens SM et al., 2009
Birth Outcomes · Maternal Morbidity
Ulman-Włodarz I et al., 2009
Birth Outcomes · Maternal Morbidity
Fitzsimons KJ et al., 2009
Birth Outcomes · Maternal Morbidity
Magee LA et al., 2009
Birth Outcomes · Maternal Mortality
Laberge PY, 2008
Birth Outcomes · Maternal Mortality
Yeung PP Jr et al., 2008
Birth Outcomes · Maternal Morbidity
Luke B et al., 2007
Birth Setting and Provider · Birth Center and Home Birth
Vedam S; Goff M; Marnin VN, 2007
Labor and Birth · Induction of Labor
Peregrine E; O'Brien P; Jauniaux E, 2007
Cesarean Birth · Cesarean Recovery and Scar
Silver RM et al., 2006
Birth Outcomes · Maternal Morbidity
Cheng YW; Shaffer BL; Caughey AB, 2006
Birth Outcomes · Maternal Morbidity
Källén B et al., 2005
Cesarean Birth · Vaginal Birth After Cesarean
Landon MB et al., 2004
Birth Outcomes · Maternal Morbidity
Weiss JL et al., 2004
Birth Outcomes · Maternal Morbidity
Smith GC; Pell JP; Pasupathy D; Dobbie R, 2004
Birth Outcomes · Maternal Morbidity
Guise JM; McDonagh MS; Osterweil P; Nygren P; Chan BK; Helfand M, 2004
Cesarean Birth · Cesarean Recovery and Scar
Hannah ME; Whyte H; Hannah WJ; Hewson S; Amankwah K; Cheng M; Gafni A; Guselle P; Helewa M; Hodnett ED; Hutton E; Kung R; McKay D; Ross S; Saigal S; Willan A, 2004
Birth Outcomes · Maternal Morbidity
Martin JA et al., 2003
Labor and Birth · Operative Vaginal Birth
Ponkey SE; Cohen AP; Heffner LJ; Lieberman E, 2003
Birth Outcomes · Maternal Morbidity
Paulson RJ et al., 2002
Labor and Birth · Physiologic Birth
Gottvall K et al., 2002
Birth Outcomes · Maternal Mortality
MacDorman MF et al., 2002 · Report
Birth Outcomes · Maternal Morbidity
Mattison DR et al., 2001
Birth Outcomes · Maternal Morbidity
Kashyap S et al., 2001
Labor and Birth · Induction of Labor
Ali AFM et al., 2000
Labor and Birth · Induction of Labor
Abramov Y et al., 2000
Cesarean Birth · Cesarean Indications and Rates
Hannah ME; Hannah WJ; Hewson SA; Hodnett ED; Saigal S; Willan AR, 2000
Birth Setting and Provider · Midwifery Care
Stone SE, 2000
Birth Outcomes · Maternal Morbidity
Curet MJ; Schermer CR; Demarest GB; Bieneik EJ 3rd; Curet LB, 2000
Birth Outcomes · Maternal Morbidity
Zhou W et al., 1999
Birth Outcomes · Maternal Morbidity
Orvos H et al., 1999
Birth Outcomes · Maternal Morbidity
Papiernik E et al., 1999
Birth Setting and Provider · Midwifery Care
Baldwin KA, 1999
Birth Outcomes · Maternal Morbidity
Simpson KR, 1999
Birth Setting and Provider · Midwifery Care
Rooks JP, 1999
Birth Setting and Provider · Birth Center and Home Birth
Murphy PA; Fullerton J, 1998
Birth Setting and Provider · Birth Center and Home Birth
Bastian H; Keirse MJ; Lancaster PA, 1998
Birth Outcomes · Maternal Morbidity
Reubinoff BE et al., 1997
Birth Setting and Provider · Midwifery Care
Rosenblatt RA; Dobie SA; Hart LG; Schneeweiss R; Gould D; Raine TR; Benedetti TJ; Pirani MJ; Perrin EB, 1997
Labor and Birth · Physiologic Birth
Zalar RW Jr, 1996
Labor and Birth · Physiologic Birth
Winkler M et al., 1994
Birth Outcomes · Maternal Morbidity
Yoder BA, 1994
Birth Outcomes · Maternal Morbidity
Rosen MG et al., 1992
Birth Outcomes · Maternal Morbidity
Bhalla AK et al., 1992
Labor and Birth · Induction of Labor
Saunders N et al., 1991
Labor and Birth · Physiologic Birth
Strickland DM, 1991
Labor and Birth · Physiologic Birth
Watts DH et al., 1991
Labor and Birth · Physiologic Birth
Martin RW et al., 1990
Labor and Birth · Physiologic Birth
Hill WC et al., 1990
Birth Outcomes · Maternal Morbidity
Menticoglou SM, 1990
Labor and Birth · Physiologic Birth
Nageotte MP et al., 1988
Birth Outcomes · Maternal Morbidity
Arias F, 1988
Labor and Birth · Induction of Labor
Ernest JM et al., 1987
Labor and Birth · Physiologic Birth
Katz M et al., 1986
Labor and Birth · Physiologic Birth
Leveno KJ et al., 1986
Birth Outcomes · Maternal Morbidity
Leveno KJ et al., 1986
Labor and Birth · Physiologic Birth
Papiernik E et al., 1986
Labor and Birth · Physiologic Birth
Carr-Hill RA et al., 1985
Labor and Birth · Physiologic Birth
Katz Z et al., 1983
Labor and Birth · Physiologic Birth
Hadley A, 1983
Birth Outcomes · Maternal Morbidity
Evans MI et al., 1980
Labor and Birth · Physiologic Birth
Daly KD et al., 1980
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Fertility and Outcomes · Conception After Excision
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Safety and Risks · Neonatal and Birth Outcomes
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Safety and Risks · Maternal Complications
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Safety and Risks · Maternal Complications
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Acquired Uterine Conditions · Cesarean Scar Defect
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Preterm Birth · Prediction
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Fertility and Outcomes · Conception After Excision
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Hormonal Agents · Progesterone and Progestins
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Infections · Pelvic Inflammatory Disease
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Supplements and Botanicals · Antioxidant Supplements
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Preterm Birth · Progesterone Prophylaxis
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Preterm Birth · Prediction
Tessema GA et al., 2021
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Preconception Care · Preconception Optimization
Kasman AM et al., 2020
Environmental Exposures · Persistent Organic Pollutants
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Environmental Exposures · Persistent Organic Pollutants
Liew Z et al., 2020
Emerging Therapies · Light Therapy
de Holanda Araujo AMP et al., 2020
Registries and Reporting · National Registry Data
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Fertility and Outcomes · Conception After Excision
Farland LV et al., 2019
Safety and Risks · Maternal Complications
Almasi-Hashiani A et al., 2019
Safety and Risks · Neonatal and Birth Outcomes
Bay B et al., 2019
Registries and Reporting · National Registry Data
Sunderam S et al., 2019
Guidelines by Clinical Area · Obstetric Guidelines
American College of Obstetricians and Gynecologists et al., 2018
Preterm Birth · Prediction
Mierzyński R et al., 2018
Registries and Reporting · National Registry Data
CDC, 2018 · Report
Cervical Conditions · Cervical Insufficiency
Gonzales SK et al., 2018
Donor Gametes and Surrogacy · Surrogacy
Woo I et al., 2017
Fertility and Outcomes · Conception After Excision
Zullo F et al., 2017
Anti-Infective and Anti-Inflammatory Agents · Nonsteroidal Anti-Inflammatory Drugs
Rolnik DL et al., 2017
Mental Health · Postpartum Depression
Kroll-Desrosiers AR et al., 2017
Preconception Care · Preconception Screening
Chen S et al., 2017
Registries and Reporting · National Registry Data
Sunderam S et al., 2017
Safety and Risks · Neonatal and Birth Outcomes
Kathpalia SK et al., 2016
Mental Health · Postpartum Depression
Ayers S et al., 2016
Hormone Testing · Serum Panels
Vissenberg R et al., 2016
Donor Gametes and Surrogacy · Egg Donation
Masoudian P et al., 2016
Acquired Uterine Conditions · Cesarean Scar Defect
Futyma K et al., 2016
Safety and Risks · Maternal Complications
Qin J et al., 2016
Cycle Disorders · Ovulatory Disturbances
Bonnesen B et al., 2015
Safety and Risks · Multiple Gestation
Qin J et al., 2015
Registries and Reporting · National Registry Data
Sunderam S et al., 2015
Safety and Risks · Neonatal and Birth Outcomes
Merritt TA et al., 2014
Mental Health · Postpartum Depression
Bell AF et al., 2014
Anti-Infective and Anti-Inflammatory Agents · Nonsteroidal Anti-Inflammatory Drugs
Schisterman EF et al., 2013
Safety and Risks · Neonatal and Birth Outcomes
Novak C et al., 2013
Safety and Risks · Neonatal and Birth Outcomes
Barnhart KT, 2013
Safety and Risks · Neonatal and Birth Outcomes
Pinborg A et al., 2013
Metabolic and Endocrine Agents · Insulin Sensitizing Agents
Kumar P et al., 2012
Safety and Risks · Neonatal and Birth Outcomes
Wisborg K et al., 2010
Early Pregnancy · Miscarriage
Negro R et al., 2010
Safety and Risks · Neonatal and Birth Outcomes
Wisborg K et al., 2010
Neonatal Outcomes · Birth Weight
Shah PS et al., 2009
Infant Feeding · Milk Supply
Jonas W et al., 2009
Safety and Risks · Maternal Complications
Källén B, 2008
Safety and Risks · Neonatal and Birth Outcomes
Romundstad LB et al., 2008
Fertility and Outcomes · Conception After Excision
Brosens IA et al., 2007
Reproductive Genetics · Chromosomal Abnormalities
Yong PJ et al., 2006
Preterm Birth · Progesterone Prophylaxis
Odibo AO et al., 2006
Metabolic and Endocrine Agents · Thyroid Replacement
Negro R et al., 2006
Preterm Birth · Prediction
Hilgers TW, 2004 · Book chapter
Reproductive Ethics · Embryo Status
Hilgers TW, 2004 · Book chapter
Preterm Birth · Progesterone Prophylaxis
ACOG, 2003
Safety and Risks · Multiple Gestation
Nowak E et al., 2003
Preterm Birth · Progesterone Prophylaxis
Meis PJ et al., 2003
Preterm Birth · Progesterone Prophylaxis
Greene MF, 2003
Guidelines by Clinical Area · Obstetric Guidelines
ACOG, 2003
Preterm Birth · Progesterone Prophylaxis
da Fonseca EB et al., 2003
Safety and Risks · Maternal Complications
Lynch A et al., 2002
Preterm Birth · Infection and Inflammation
Hitti J et al., 2002
Preterm Birth · Prediction
Owen J et al., 2001
Cost of Care · Cost Effectiveness
Brooten D et al., 2001
Hormonal Agents · Gonadotropins
Kurtzman JT et al., 2001
Neonatal Outcomes · Neonatal Morbidity
Suarez RD et al., 2001
Preterm Birth · Infection and Inflammation
Gücer F et al., 2001
Preterm Birth · Prediction
Heine RP et al., 2000
Cervical Conditions · Cervical Insufficiency
Dijkstra K et al., 2000
Preterm Birth · Prediction
El-Bastawissi AY et al., 2000
Safety and Risks · Neonatal and Birth Outcomes
Tough SC et al., 2000
Preterm Birth · Prediction
Kurkinen-Raty M et al., 2000
Preterm Birth · Tocolytic Therapy
Papatsonis DN et al., 2000
Anti-Infective and Anti-Inflammatory Agents · Nonsteroidal Anti-Inflammatory Drugs
Gyetvai K et al., 1999
Preterm Birth · Prediction
Berghella V et al., 1999
Preterm Birth · Infection and Inflammation
Locksmith GJ et al., 1999
Cervical Conditions · Cervical Insufficiency
Funai EF et al., 1999
Preterm Birth · Prediction
Marinoni E et al., 1999
Cervical Conditions · Cervical Insufficiency
Althuisius SM et al., 1999
Pregnancy Complications · Premature Rupture of Membranes
Lewis DF; Adair CD; Weeks JW; Barrilleaux PS; Edwards MS; Garite TJ, 1999
Preterm Birth · Prediction
Martius JA et al., 1998
Infections · Pelvic Inflammatory Disease
Nowak M et al., 1998
Prescribing Safety · Off-Label Prescribing
Lam F et al., 1998
Preterm Birth · Tocolytic Therapy
Goldenberg RL et al., 1998
Preterm Birth · Prediction
Faron G et al., 1998
Preterm Birth · Prediction
Moore ML et al., 1998
Reproductive Ethics · Access to Treatment
Sauer MV, 1998
Preterm Birth · Prediction
Goldenberg RL et al., 1998
Preterm Birth · Prediction
Murtha AP et al., 1998
Preterm Birth · Prediction
Dyson DC et al., 1998
Preterm Birth · Prediction
Topp M et al., 1997
Thyroid and Metabolic Function · Insulin and Metabolism
Urman B et al., 1997
Preterm Birth · Prediction
Porter TF et al., 1997
Preterm Birth · Infection and Inflammation
Oleszczuk J et al., 1997
Donor Gametes and Surrogacy · Egg Donation
Paulson RJ et al., 1997
Preterm Birth · Prediction
Henriksen TB et al., 1997
Preterm Birth · Infection and Inflammation
Cylwik B et al., 1997
Preterm Birth · Tocolytic Therapy
Boehm FH et al., 1996
Preterm Birth · Prediction
Goldenberg RL et al., 1996
Cervical Conditions · Cervical Insufficiency
Iams JD et al., 1996
Preterm Birth · Infection and Inflammation
Yoon BH et al., 1996
Preterm Birth · Infection and Inflammation
Negishi H et al., 1996
Preterm Birth · Infection and Inflammation
Andrews WW et al., 1995
Neuroendocrinology · Hyperprolactinemia
Rossi AM et al., 1995
Preterm Birth · Prediction
Kristensen J et al., 1995
Preterm Birth · Prediction
Hueston WJ et al., 1995
Safety and Risks · Neonatal and Birth Outcomes
FIVNAT, 1995
Anti-Infective and Anti-Inflammatory Agents · Antibiotics in Reproductive Care
Lewis DF et al., 1995
Study Design · Cohort Studies
Font GE et al., 1995
Preterm Birth · Infection and Inflammation
Foulon W et al., 1995
Neuroendocrinology · Hypothalamic Pituitary Axis
McLean M et al., 1995
Prescribing Safety · Medication Safety in Pregnancy
Kosasa TS et al., 1994
Pregnancy Complications · Premature Rupture of Membranes
Joffe M et al., 1994
Preterm Birth · Prediction
Hobel CJ et al., 1994
Outcomes and Effectiveness · Live Birth Rates
Lipitz S et al., 1993
Preterm Birth · Prediction
Murakawa H et al., 1993
Anti-Infective and Anti-Inflammatory Agents · Nonsteroidal Anti-Inflammatory Drugs
Sibai BM et al., 1993
Preterm Birth · Infection and Inflammation
Mazor M et al., 1993
Preterm Birth · Infection and Inflammation
Watts DH et al., 1993
Outcomes and Effectiveness · Live Birth Rates
McFaul PB et al., 1993
Cervical Conditions · Cervical Insufficiency
MRC/RCOG Working Party on Cervical Cerclage, 1993
Prescribing Safety · Medication Safety in Pregnancy
Higby K et al., 1993
Hormonal Agents · Progesterone and Progestins
Travis BE et al., 1993
Prescribing Safety · Medication Safety in Pregnancy
Chau AC et al., 1992
Safety and Risks · Neonatal and Birth Outcomes
Tan SL et al., 1992
Preterm Birth · Infection and Inflammation
Gibbs RS et al., 1992
Safety and Risks · Multiple Gestation
Seoud MA et al., 1992
Safety and Risks · Neonatal and Birth Outcomes
Doyle P et al., 1992
Cervical Conditions · Cervical Insufficiency
Joffe GM et al., 1992
Evidence Synthesis · Systematic Reviews
Grimes DA et al., 1992
Pregnancy Complications · Hypertensive Disorders
Newcomb WW et al., 1991
Cervical Conditions · Cervical Insufficiency
Michaels WH et al., 1991
Preterm Birth · Prediction
Mou SM et al., 1991
Neonatal Outcomes · Birth Weight
Williams MA et al., 1991
Preterm Birth · Tocolytic Therapy
Noblot G et al., 1991
Evidence Synthesis · Systematic Reviews
Rhoads GG et al., 1991
Preterm Birth · Prediction
Merkatz RB et al., 1991
Anti-Infective and Anti-Inflammatory Agents · Nonsteroidal Anti-Inflammatory Drugs
Besinger RE et al., 1991
Preterm Birth · Prediction
Dyson DC et al., 1991
Preterm Birth · Prediction
Goldenberg RL et al., 1990
Safety and Risks · Maternal Complications
Hill GA et al., 1990
Preterm Birth · Prediction
Katz M et al., 1990
Preterm Birth · Progesterone Prophylaxis
Keirse MJ, 1990
Multiple Gestation · Multiple Birth Risks
Shalev J et al., 1989
Preterm Birth · Infection and Inflammation
Romero R et al., 1989
Preterm Birth · Infection and Inflammation
Cammu H et al., 1989
Physical Activity · Exercise and Ovulation
Cohen GC et al., 1989
Measurement and Statistics · Instrument Development and Validation
Kramer MS et al., 1988
Prescribing Safety · Medication Safety in Pregnancy
Lam F et al., 1988
Infections · Pelvic Inflammatory Disease
Kornman L et al., 1988
Pregnancy Complications · Hypertensive Disorders
Varma TR et al., 1988
Anti-Infective and Anti-Inflammatory Agents · Antibiotics in Reproductive Care
Ogita S et al., 1988
Preterm Birth · Infection and Inflammation
de Souza JJ et al., 1987
Pregnancy Complications · Hypertensive Disorders
Varma TR et al., 1987
Cervical Conditions · Cervical Insufficiency
Ansari AH et al., 1987
Preterm Birth · Tocolytic Therapy
Katz M et al., 1986
Preterm Birth · Tocolytic Therapy
Erny R et al., 1986
Preterm Birth · Infection and Inflammation
Potkul RK et al., 1985
Study Design · Cohort Studies
Katz M et al., 1985
Prescribing Safety · Medication Safety in Pregnancy
Ingemarsson I et al., 1985
Preterm Birth · Progesterone Prophylaxis
Yemini M et al., 1985
Preterm Birth · Infection and Inflammation
Gravett MG, 1984
Cervical Conditions · Cervical Insufficiency
Rush RW et al., 1984
Preterm Birth · Infection and Inflammation
Hameed C et al., 1984
Cervical Conditions · Cervical Insufficiency
Lazar P et al., 1984
Preterm Birth · Infection and Inflammation
Handwerker SM et al., 1984
Stress and Allostatic Load · Stress and Ovulation
Zahn V, 1984
Congenital Uterine Anomalies · Anomalies and Pregnancy Outcomes
Abramovici H et al., 1983
Preterm Birth · Progesterone Prophylaxis
Garfield RE et al., 1982
Congenital Uterine Anomalies · Anomalies and Pregnancy Outcomes
Heinonen PK et al., 1982
Preterm Birth · Prediction
Berkowitz GS, 1981
Preterm Birth · Tocolytic Therapy
Kauppila A et al., 1980
Preterm Birth · Progesterone Prophylaxis
Johnson JW et al., 1979
Ovarian Hormones · Progesterone
Ottesen B et al., 1979
Preterm Birth · Prediction
Funderburk SJ et al., 1976
Preterm Birth · Progesterone Prophylaxis
Associated Press Omaha World Herald, 1975
Preterm Birth · Progesterone Prophylaxis
Johnson JW et al., 1975
Pregnancy Complications · Hypertensive Disorders
Hack M et al., 1972
Ovarian Hormones · Progesterone
Yannone ME et al., 1968
Pregnancy Complications · Premature Rupture of Membranes
Sherman AI, 1966