Statistical flaws in the development of a prediction model
While I read with great interest the development of a nomogram to predict the 5-year recurrence of border ovarian tumors, my enthusiasm was tempered by the numerous deficiencies in the…
Pregnancy Research on Osteopathic Manipulation Optimizing Treatment Effects: the PROMOTE study
Materials and Methods PROMOTE was a randomized, controlled clinical trial. Study visits were conducted from 2007-2011, at 3 Obstetrics and Gynecology clinics in Tarrant County, TX. The Institutional Review Boards…
Review of multicenter studies by multiple institutional review boards: characteristics and outcomes for perinatal studies implemented by a multicenter network
Objective The objective of the study was to describe characteristics and outcomes of a review of multisite perinatal studies by individual institutional review boards (IRBs) and identify barriers and opportunities…
Risk factors for cesarean delivery in twin pregnancies attempting vaginal delivery
Objective The purpose of this study was to estimate independent risk factors for cesarean delivery in patients with twin pregnancies who attempt vaginal delivery. Study Design This was an historic…
Nonmedically indicated induction vs expectant treatment in term nulliparous women
Methods From 2008-2011, we assembled a cohort of women and their neonates who were born in any of the 25 hospitals in the Maternal-Fetal Medicine Units Network. This APEX study…
Medical and obstetric complications among pregnant women with cystic fibrosis
Materials and Methods The Nationwide Inpatient Sample (NIS) from the Healthcare Cost and Utilization Project of the Agency for Healthcare Research and Quality was queried for pregnancy-related discharges from January…
October 2011 (vol. 205, no. 4, page 333)
Two statistics were incorrect in the study results provided in a research paper published in October 2011 (McDonald SD, Pullenayegum E, Taylor VH, et al. Despite 2009 guidelines, few women report…
March 2014 (vol. 210, no. 3, page 250)
It was stated in the March 2014 issue of the Journal that no reprints were available from the authors of a research article (Zhang W-x, Jiang H, Wang X-m, et al….
Intrahepatic cholestasis of pregnancy: maternal and fetal outcomes associated with elevated bile acid levels
Materials and Methods Patient selection and data collection A retrospective study was conducted with data from January 2005 until August 2012 in 1 academic and 2 affiliated teaching hospitals in…
