Background The terrorist attacks of 11 September 2001 (hereafter referred to as 9/11)
preceded an increase in male fetal deaths and reduced male live births among exposed …

Empirical research and the theory of natural selection assert that male mortality more than
female mortality responds to ambient stressors in utero. Although population stressors may …

Objectives. To estimate associations between exposure to the events of September 11,
2001,(9/11) and low birth weight (LBW), preterm delivery (PD), and small size for gestational …

Background The secondary sex ratio (ie, the odds of a male birth) reportedly declines
following natural disasters, pollution events, and economic collapse. It remains unclear …

Abstract Background On 13 November 2015, coordinated terrorist attacks swept through
Paris. This large stressor, like earlier terrorist attacks in the USA, may have perturbed the …

Background and objectives: Despite growing interest in the role of maternal psychosocial
stress as a determinant of preterm birth, no existing work has examined the relation between …

Background Infants in utero during the terrorist attacks of September 11, 2001 may have
been negatively affected by maternal stress. Studies to date have produced contradictory …

Objective: In humans, males are born slightly in excess of females. Many factors have been
shown to affect this ratio, including stressful events such as terrorist attacks. Two shootings …

Given the unexpected nature of the terrorist attacks of September 11, 2001, a specific cohort
of children were exogenously exposed to increased maternal psychological stress in utero …

OBJECTIVE: To evaluate the effects of the September 11, 2001, World Trade Center attacks
on birth outcomes. METHODS: Live singleton births between September 11, 2001, and …