Sensitivity analysis for nonignorable missing values in blended analysis framework: a study on the effect of bariatric surgery via electronic health records [PDF]
arXivThis paper establishes a series of sensitivity analyses to investigate the impact of missing values in the electronic health records (EHR) that are possibly missing not at random (MNAR). EHRs have gained tremendous interest due to their cost-effectiveness, but their employment for research involves numerous challenges, such as selection bias due to ...
arxiv
Comparison of Positive End-Expiratory Pressure with Reverse Trendelenburg Position in Morbidly Obese Patients Undergoing Bariatric Surgery: Effects on Hemodynamics and Pulmonary Gas Exchange [PDF]
, 2003 Valter Perilli +7 more
openalex +1 more source
Andrology, EarlyView.Abstract Background Sexual position is one of the several aspects that affects ejaculation control, which is essential for sexual pleasure. Still little is known, nevertheless, about the connection between sexual positions and ejaculation duration. Objective To investigate the impact of various sexual positions on the duration of ejaculation and gain a
Murat Gül +14 more
wiley +1 more source
Bariatric Surgery and Bariatric Psychology: General Overview and the Dutch Approach [PDF]
, 2003 Gerbrand C. M. van Hout +6 more
openalex +1 more source
Andrology, EarlyView.Abstract Background Maternal obesity increases offspring obesity risk, but limited data exist on its association with reproductive hormones in infertile males. Objectives To investigate the impact of maternal obesity during pregnancy on total testosterone levels in primary infertile men.
Fausto Negri +14 more
wiley +1 more source
Mathematics of statistical sequential decision-making: concentration, risk-awareness and modelling in stochastic bandits, with applications to bariatric surgery [PDF]
arXivThis thesis aims to study some of the mathematical challenges that arise in the analysis of statistical sequential decision-making algorithms for postoperative patients follow-up. Stochastic bandits (multiarmed, contextual) model the learning of a sequence of actions (policy) by an agent in an uncertain environment in order to maximise observed rewards.
arxiv
Predicting Surgery Duration from a New Perspective: Evaluation from a Database on Thoracic Surgery [PDF]
arXiv, 2017 BACKGROUND: Clinical factors influence surgery duration. This study also investigated non-clinical effects. METHODS: 22 months of data about thoracic operations in a large hospital in China were reviewed. Linear and nonlinear regression models were used to predict the duration of the operations.
arxiv
Bariatric surgery: Creating new challenges for the endoscopist [PDF]
, 2003 T STELLATO, C CROUSE, P. HALLOWELL
openalex +1 more source
Exceptional Dehn surgery on large arborescent knots [PDF]
arXiv, 2006 A Dehn surgery on a knot $K$ in $S^3$ is exceptional if it produces a reducible, toroidal or Seifert fibred manifold. It is known that a large arborescent knot admits no such surgery unless it is a type II arborescent knot. The main theorem of this paper shows that up to isotopy there are exactly three large arborescent knots admitting exceptional ...
arxiv