Jin Liang Zhu

..We examined this association using bereavement around the time of conception as an indicator of maternal exposure to stress in a large registry-based study...

..Studies suggest that children born very preterm have a high risk of developmental coordination disorder (DCD). We examined the relation between the larger spectrum of gestational age at birth and the risk of DCD...

..As survival among persons with DS continues to improve, these findings are likely to be useful for health care planning, although the potential utility may be different for different health care systems...

..The reproductive health of children born of infertile couples may be affected by infertility treatment or factors associated with infertility. We examined sexual maturation in children of parents with infertility...

..Nonright-handedness, particularly mixed-handedness, has been associated with a number of medical conditions. We examined whether handedness was associated with fecundity, measured by time to pregnancy...

..These results suggest that a long TTP may be associated with a modest developmental delay. Infertility treatment, especially ICSI, may be associated with a slight delay for some of these early milestones...

..To compare two post-abortion family planning (FP) service packages on contraceptive use and repeat abortion rate among young women in three cities in China...

..Mixed-handedness, which may reflect atypical brain laterality, has been linked to a number of medical conditions as well as prenatal stress...

..In this study, we examined whether children of infertile couples with or without infertility treatment had a higher risk of developmental coordination disorder (DCD)...

..In this study, we examined whether untreated subfecundity (measured by time to pregnancy) or infertility treatment was associated with an increased risk of CP in the offspring...

..Our results are thus overall reassuring regarding behavioural problems in children born to infertile couples, regardless of infertility treatment...

..We examined the association between paternal age and mortality in children in a large population-based cohort taking maternal age and socioeconomic factors into account...

..To examine the association between infertility, with or without treatment, and fetal growth, as well as perinatal and infant mortality...

..By using updated information, we assessed the frequencies of dizygotic (DZ) and monozygotic (MZ) twin deliveries as a function of infertility (TTP > 12 months), as well as infertility treatment...

..The Danish National Birth Cohort was used to examine whether laboratory work was associated with reduced fecundity...

..To examine whether infertile couples (with a time to pregnancy of > 12 months), who conceive naturally or after treatment, give birth to children with an increased prevalence of congenital malformations...

..We conducted a follow-up study to examine whether exposure to pesticides during pregnancy had an adverse effect on pregnancy outcomes among Danish gardeners and farmers...

..The Danish National Birth Cohort (DNBC) was used to examine pregnancy outcomes among female hairdressers and neurodevelopment in their offspring...

..To examine pregnancy outcomes in women doing laboratory work...

..The purpose of the present study is to investigate if women working in occupations where exposure to infections agents is common have a high risk of infections and adverse pregnancy outcomes...

..The association could be caused by mutations of the gametes in men induced by biological or environmental factors...

..Only few studies have addressed the long-term neurological outcomes of children born by subfertile couples. We studied the risk of epilepsy and febrile seizures in children of treated and untreated subfertile couples...

..Job stress, as measured in our study, was not associated with fetal loss. CONCLUSIONS: Our results suggest that fixed night work during pregnancy increases the risk of late fetal loss...

..3 (age 25-29), 1.4 (age 35-39), 1.7 (age 40-44), 1.6 (age 45-49), and 2.1 (age 50+) (test for trend: P = 0.01). CONCLUSIONS: Risk of very preterm birth increases among older fathers, perhaps as a result of a paternal placental effect...

..Several studies have shown substantially longer survival among persons with Down syndrome in recent decades. We examined survival patterns among Danish persons with Down syndrome by karyotype...

..CONCLUSION: Our results suggest that shift work during pregnancy had limited effects on indicators of fetal growth. Night work may prolong the duration of pregnancy and reduce fetal growth, especially among industrial workers...

..New evidence suggests that advanced paternal age is a reproductive hazard, but we do not know whether paternal age affects the physical conditions of newborn infants as measured by the Apgar score...

..Some, or perhaps all, of these findings may be due to chance caused by multiple comparisons. We present all results on paper or online to provide clues for further research and to avoid publication bias...

..A dramatic decline in semen quality over the past half-century has been proposed and widely discussed, but none of the existing studies provide data good enough for coming to any firm conclusion...