Perinatal mortality in twin pregnancy: an analysis of birth weight-specific mortality rates and adjusted mortality rates for birth weight distributions

Journal of Perinatal Medicine
E FabreJ L Bescos


The objective of this study is to compare the fetal mortality rate (FMR), early neonatal mortality rate (ENMR) and perinatal mortality rate (PMR) of twin and single births. It is based on a survey which was carried out in 22 Hospital Centers in Spain in 1980, and covered 1,956 twins born and 110,734 singletons born. The FMR in twins was 36.3/1000 and 8.8/1000 for singletons. The ENMR in twins was 36.1/1000 and 5.7/1000 for singletons. The PMR in twins was 71.1/1000 and 14.4/1000 for singletons. When birthweight-specific PMR in twin and singletons births are compared, there were no differences between the rates for groups 500-999 g and 1000-1499 g. For birthweight groups of 1500-1999 g (124.4 vs 283.8/1000) and 2000-2999 g (29.6 vs 73.2/1000) the rates for twins were about twice lower than those for single births. The PMR for 2500 g and over birthweight was about twice higher in twins than in singletons (12.5 vs 5.5/1000). After we adjusted for birthweight there was a difference in the FMR (12.6 vs 9.8/1000) and the PMR (19.1 vs 16.0/1000, and no difference in the ENMR between twins and singletons (5.9 vs 6.4/1000), indicating that most of the differences among crude rates are due to differences in distribution of birthweight.


Jun 1, 1978·American Journal of Obstetrics and Gynecology·R L NaeyeC C Marboe
Aug 15, 1975·American Journal of Obstetrics and Gynecology·S K Ho, P Y Wu
Feb 1, 1984·American Journal of Obstetrics and Gynecology·Y W BransR S Ramamurthy
Oct 1, 1981·American Journal of Obstetrics and Gynecology·B J McCarthyR Rochat

❮ Previous
Next ❯


Nov 2, 2005·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Kim M J HaestJan G Nijhuis
Jan 22, 2014·Best Practice & Research. Clinical Obstetrics & Gynaecology·Jon F R Barrett
Mar 1, 1993·American Journal of Obstetrics and Gynecology·P Buekens, A Wilcox
Jul 29, 2004·Best Practice & Research. Clinical Obstetrics & Gynaecology·J F R Barrett
Mar 5, 2014·BMC Pregnancy and Childbirth·Ketan ShankardassVictoria M Allen
Aug 19, 2010·BMC Pregnancy and Childbirth·Abdoulaye Hama DialloUNKNOWN PROMISE-EBF Study Group
Aug 8, 2001·Paediatric and Perinatal Epidemiology·Y Imaizumi
Nov 18, 2003·Acta Obstetricia Et Gynecologica Scandinavica·Annelise SkeieBabill Stray-Pedersen
Dec 20, 2015·The Cochrane Database of Systematic Reviews·G Justus HofmeyrCaroline A Crowther
Apr 1, 1990·Annals of Medicine·A L Hartikainen-SorriP Sipilä
Aug 24, 2019·PloS One·Md Belal HossainMd Hasinur Rahaman Khan
Jan 1, 1994·Acta geneticae medicae et gemellologiae·L Keith
Jan 1, 1991·Acta geneticae medicae et gemellologiae·D FraserE Picard
Jan 1, 1991·Acta geneticae medicae et gemellologiae·B LukeT R Johnson

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Hereditary Sensory Autonomic Neuropathy

Hereditary Sensory Autonomic Neuropathies are a group of inherited neurodegenerative disorders characterized clinically by loss of sensation and autonomic dysfunction. Here is the latest research on these neuropathies.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Landau-Kleffner Syndrome

Landau Kleffner syndrome (LKS), also called infantile acquired aphasia, acquired epileptic aphasia, or aphasia with convulsive disorder, is a rare childhood neurological syndrome characterized by the sudden or gradual development of aphasia (the inability to understand or express language) and an abnormal electroencephalogram. Discover the latest research on LKS here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Regulation of Vocal-Motor Plasticity

Dopaminergic projections to the basal ganglia and nucleus accumbens shape the learning and plasticity of motivated behaviors across species including the regulation of vocal-motor plasticity and performance in songbirds. Discover the latest research on the regulation of vocal-motor plasticity here.

Related Papers

Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology
F D'AntonioB. Thilaganathan on behalf of the Southwest Thames Obstetric Research Collaborative (STORK)
© 2021 Meta ULC. All rights reserved