A review of the established and suspected causes of variations in human sex ratio at birth
WH James, V Grech - Early human development, 2017 - Elsevier
The human sex ratio (proportion male) at birth (SRB) varies with many variables. Some of
this variation has an established proximate cause. For instance, low SRB (more females) at …
this variation has an established proximate cause. For instance, low SRB (more females) at …
Can sex ratios at birth be used in the assessment of public health, and in the identification of causes of selected pathologies?
WH James, V Grech - Early human development, 2018 - Elsevier
This paper will consist of two parts. In the first, further support is given to the proposal that
offspring sex ratios (proportions male) may usefully be regarded as indicators of public …
offspring sex ratios (proportions male) may usefully be regarded as indicators of public …
Exposure to the early COVID‐19 pandemic and early, moderate and overall preterm births in the United States: a conception cohort approach
CE Margerison, TA Bruckner… - Paediatric and …, 2023 - Wiley Online Library
Abstract Background The United States (US) data suggest fewer‐than‐expected preterm
births in 2020, but no study has examined the impact of exposure to the early COVID‐19 …
births in 2020, but no study has examined the impact of exposure to the early COVID‐19 …
Missing Black males among preterm births in the US, 1995 to 2019
Background In the US, non-Hispanic (NH) Black birthing persons show a two-fold greater
risk of fetal death relative to NH white birthing persons. Since males more than females …
risk of fetal death relative to NH white birthing persons. Since males more than females …
The pandemic preterm paradox: A test of competing explanations
Epidemiologists have long argued that side effects of the stress response include preterm
birth. Research reports that fear of lethal infection stressed pregnant persons at the outset of …
birth. Research reports that fear of lethal infection stressed pregnant persons at the outset of …
Missing Black males among preterm births in the US, 1995 to 2019.
BACKGROUND: In the US, non-Hispanic (NH) Black birthing persons show a two-fold
greater risk of fetal death relative to NH white birthing persons. Since males more than …
greater risk of fetal death relative to NH white birthing persons. Since males more than …
Separating the Bruce and Trivers‐Willard effects in theory and in human data
Objectives Theories of reproductive suppression predict that natural selection would
conserve mechanisms that abort the gestation of offspring otherwise unlikely to thrive in …
conserve mechanisms that abort the gestation of offspring otherwise unlikely to thrive in …
African American unemployment and the disparity in periviable births
Periviable infants (ie, born before 26 complete weeks of gestation) represent fewer than. 5%
of births in the US but account for 40% of infant mortality and 20% of billed hospital obstetric …
of births in the US but account for 40% of infant mortality and 20% of billed hospital obstetric …
Cohort variation in selection during pregnancy and risk of selected birth defects among males
TA Bruckner, D Karasek, W Yang, GM Shaw… - …, 2017 - journals.lww.com
Background: The literature theorizes, but does not test, that variation over time in selective
loss in utero affects the observed count of live-born birth defects cases. We test the …
loss in utero affects the observed count of live-born birth defects cases. We test the …
Reproductive suppression, birth defects, and periviable birth
We argue that reproductive suppression has clinical implications beyond its contribution to
the burden of spontaneous abortion. We theorize that the incidence of births before the 28th …
the burden of spontaneous abortion. We theorize that the incidence of births before the 28th …