Multiple logistic regressions were used to control for confounders. Results: The study population consisted of 31,985 women, check details 1,482 15-17 years old, 5,876 18-19 years old and 24,627 20-24 years old. A significant linear association was found between maternal age and perinatal mortality, low birth weight (LBW) and preterm delivery (PTD). Using multivariable logistic regression models, controlling for LOPC and ethnicity, the association between maternal

age and perinatal mortality was no longer statistically significant, but both LBW and PTD were significantly associated with young maternal age (>17 years). Conclusion: Teenage pregnancy is a risk factor for LBW and PTD especially for parturient younger than 17.”
“Lysing cells is an important step in the analysis of intracellular contents. Concentrating cells is often

required in order to acquire adequate cells for lysis. This work presents an integrated concentration and lysis of mammalian cells in a constriction microchannel using dc-biased ac electric fields. By adjusting the dc component, the electrokinetic cell motion can be precisely controlled, leading to an easy switch between concentration and lysis of red blood cells in the channel constriction. These two operations are also used in conjunction to demonstrate a continuous concentration and separation of leukemia cells from red blood cells in the same microchannel. The observed cell behaviors agree reasonably with the simulation results. (C) 2010 American Institute of Staurosporine Physics. [doi:10.1063/1.3496358]“
“Objective: SB273005 molecular weight Analyses of the effects of place of residence, socioeconomic

status and ethnicity on perinatal mortality and morbidity in the Netherlands. Methods: Epidemiological analysis of all singleton deliveries >= 22 gestational weeks (871,889 live born and 5927 stillborn) from the Dutch National Perinatal Registry 2002-2006. Multiple logistic regression analysis was used to determine whether place of residence (deprived neighborhood, or not) contributed to the adverse perinatal outcome (defined as perinatal mortality, preterm birth, small for gestational age, congenital abnormalities or Apgar score <7, 5 min after birth), additional to individual pregnancy characteristics, demographic characteristics, ethnic background and socioeconomic class. Results: Incidence of adverse perinatal outcome was 16.7%. After adjustment the excess risk for perinatal mortality in deprived districts was 21%, for preterm birth 16%, for small-for-gestational age 11%, and for Apgar score <7 after 5 min 11%. Conclusions: Perinatal inequalities appear impressive in both urban and nonurban areas, with a significant additive risk of living in a deprived neighborhood. Excess risk for perinatal mortality generally outranges that for morbidity, suggesting both an etiological and prognostic pathway for neighborhood effects.