Background Previous studies concerning the association between maternal anxiety during
pregnancy and adverse birth outcomes have provided controversial findings. Methods In this …

In 2004, 12.5 percent of births in the United States were preterm; that is, born at less than 37
completed weeks of gestation. This rate has increased steadily in the past decade. There …

Preterm delivery and its short-term and long-term sequelae constitute a serious problem in
terms of mortality, disability, and cost to society. The incidence of preterm delivery, which has …

Aims: Psychosocial stress during pregnancy (PSP) is a risk factor of growing interest in the
etiology of preterm birth (PTB). This literature review assesses the published evidence …

Pregnancy is a unique immunological state in which a balance of immune tolerance and
suppression is needed to protect the fetus without compromising the mother. It has long …

Background Normal and abnormal processes of pregnancy and childbirth are poorly
understood. This second article in a global report explains what is known about the …

Objective: This article investigates the effects of antenatal depression and anxiety on
spontaneous preterm birth resulting either from preterm labor or preterm premature rupture …

Intrauterine infection has been frequently linked with preterm labor before 30 wk of human
pregnancy. Many different species of organisms have been detected, leading to the …

Background Preterm birth is a global public health issue and rates in Puerto Rico are
consistently among the highest in the USA. Exposures to environmental contaminants might …

OBJECTIVE: The objective of the study was to evaluate the effects of maternal exposure to
severe life events during different stage of gestation on preterm birth and infant birthweight …