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Executive summary of the workshop on the border of viability
Rosemary D Higgins1, Maria Delivoria-Papadopoulos, Tonse N K Raju
1Pregnancy and Perinatology Branch, Center for Developmental Biology and Perinatal Medicine, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA. higginsr@mail.nih.gov
One of the most complex areas in perinatal-neonatal medicine remains the care of the mother delivering a newborn infant at the border of viability, referred to as "periviable" gestation. To address the knowledge gaps that preclude optimal, evidence-based care in this critical field of perinatal medicine, the National Institute of Child Health and Human Development organized a workshop in March 2004. This article provides a summary of the discussions, focusing on major knowledge gaps and prioritized suggestions for studies in this area.
One of the most complex areas in perinatal-neonatal medicine remains the care of the mother delivering a newborn infant at the border of viability, referred to as "periviable" gestation. To address the knowledge gaps that preclude optimal, evidence-based care in this critical field of perinatal medicine, the National Institute of Child Health and Human Development organized a workshop in March 2004. This article provides a summary of the discussions, focusing on major knowledge gaps and prioritized suggestions for studies in this area.
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In hypothesis testing, a sample statistic is converted to a test statistic using z, t, or chi-square distribution. A critical region is an area under the curve in probability distributions demarcated by the critical value. When the test statistic falls in this region, it suggests that the null hypothesis must be rejected. As this region contains all those values of the test...
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