Length of gestation.

Climate Extremes and the Length of Gestation

BACKGROUND Although future climate is predicted to have more extreme heat conditions, the available evidence on the impact of these conditions on pregnancy length is very scarce and inconclusive. OBJECTIVES We investigated the impact of maternal short-term exposure to extreme ambient heat on the length of pregnancy. METHODS This study was based on a cohort of births that occurred in a major...

Fetal foot length throughout gestation: a nomogram

Objective: There are certain situations in obstetric ultrasound such as hydrocephalus, anencephaly, short limb dysplasia, where traditional biometric values cannot be used to assess gestational age. In these situations, we have to use other parameters for the accurate assessment of gestational age. One of the useful parameters is foetal foot length because it is easily accessed and measured eas...

Mouse Gestation Length Is Genetically Determined

BACKGROUND Preterm birth is an enormous public health problem, affecting over 12% of live births and costing over $26 billion in the United States alone. The causes are complex, but twin studies support the role of genetics in determining gestation length. Despite widespread use of the mouse in studies of the genetics of preterm birth, there have been few studies that actually address the preci...

A method of imputing length of gestation on birth certificates.

Chlordecone exposure, length of gestation, and risk of preterm birth.

Persistent organic pollutants have not been conclusively associated with length of gestation or with preterm birth. Chlordecone is an organochlorine pesticide that has been extensively used to control the banana root borer population in the French West Indies. Data from the Timoun Mother-Child Cohort Study conducted in Guadeloupe between 2004 and 2007 were used to examine the associations of ch...