Auswertung klinischer Studien mit SPSS
Ein Leitfaden zur strukturierten Herangehensweise
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Impact of visual–spatial ability on laparoscopic camera navigation training
Technical limitations of minimally invasive surgery challenge both surgeons and camera assistants. Current research indicates that visual–spatial ability (VSA) has impact on learning of laparoscopic camera nav...
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Bariatric Surgery as an Efficient Treatment for Non-Alcoholic Fatty Liver Disease in a Prospective Study with 1-Year Follow-up
Bariatric surgery gains attention as a potential treatment for non-alcoholic fatty liver disease (NAFLD). The present study aimed to evaluate improvement of NAFLD after the two most common bariatric procedures...
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Open AccessHand-Assisted laparoscopic donor nephrectomy PERiumbilical versus Pfannenstiel incision and return to normal physical ACTivity (HAPERPACT): study protocol for a randomized controlled trial
Hand-assisted laparoscopic living donor nephrectomy (HALDN) using a periumbilical or Pfannenstiel incision was developed to improve donor outcome after a kidney transplant. The aim of this study was to investi...
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Chapter
Einleitung
Das Studienbeispiel, das im Folgenden betrachtet werden soll, orientiert sich an einer Veröffentlichung aus dem Bereich der klinischen Onkologie. Moore et al. 2007 untersuchten den Mehrwert einer Zugabe von Er...
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Deskriptive Auswertung
Der erste Schritt der statistischen Auswertung besteht darin, die erhobenen Daten zu beschreiben (deskriptive Auswertung). Dabei bietet es sich an mit den Baseline-Daten zur Beschreibung der Charakteristika de...
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Grundlagen für den Umgang mit Daten
In diesem Kapitel soll anhand der Daten, die für die nachfolgenden Auswertungen herangezogen werden, das Vorgehen beim Importieren von Exceldaten in SPSS erläutert und auf die Bearbeitung bzw. Berechnung neuer...
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Statistische Tests und Grafiken
Der primäre Endpunkt in einer klinischen Studie ist jenes Zielkriterium bzw. Outcome, anhand dessen der Erfolg der Studie (z.B. Nachweis der Wirksamkeit einer neuen Therapie) beurteilt wird. Zur Analyse des pr...
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Open AccessGlobal Variation of Nutritional Status in Children Undergoing Chronic Peritoneal Dialysis: A Longitudinal Study of the International Pediatric Peritoneal Dialysis Network
While children approaching end-stage kidney disease (ESKD) are considered at risk of uremic anorexia and underweight they are also exposed to the global obesity epidemic. We sought to investigate the variation...
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Does rating with a checklist improve the effect of E-learning for cognitive and practical skills in bariatric surgery? A rater-blinded, randomized-controlled trial
Mental training of laparoscopic procedures with E-learning has been shown to translate to the operating room. The present study aims to explore whether the use of checklists during E-learning improves transfer...
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One or two trainees per workplace for laparoscopic surgery training courses: results from a randomized controlled trial
There are no standards for optimal utilization of workplaces in laparoscopic training. This study aimed to define whether laparoscopy training should be done alone or in pairs (known as dyad training).
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Video Teaching Leads to Improved Attitudes Towards Obesity—a Randomized Study with 949 Participants
Obesity is a rising social and economic burden. Patients with obesity often suffer from stigmatization and discrimination. Underrecognition of obesity as a disease could be a contributing factor. The present s...
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The Heidelberg VR Score: development and validation of a composite score for laparoscopic virtual reality training
Virtual reality (VR-)trainers are well integrated in laparoscopic surgical training. However, objective feedback is often provided in the form of single parameters, e.g., time or number of movements, making co...
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The Charlson Comorbidity and Barthel Index predict length of hospital stay, mortality, cardiovascular mortality and rehospitalization in unselected older patients admitted to the emergency department
The Charlson Comorbidity Index (CCI) is the most widely used assessment tool to report the presence of comorbid conditions. The Barthel index (BI) is used to measure performance in activities of daily living. ...
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Open AccessAdjuvant intensity modulated whole-abdominal radiation therapy for high-risk patients with ovarian cancer FIGO stage III: final results of a prospective phase 2 study
To assess late toxicity, quality of life and oncological outcome after consolidative whole abdominal radiotherapy (WART) following cytoreductive surgery and carboplatin/paclitaxel chemotherapy in high risk pat...
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Sensor-based machine learning for workflow detection and as key to detect expert level in laparoscopic suturing and knot-tying
The most common way of assessing surgical performance is by expert raters to view a surgical task and rate a trainee’s performance. However, there is huge potential for automated skill assessment and workflow ...
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Self-directed training with e-learning using the first-person perspective for laparoscopic suturing and knot tying: a randomised controlled trial
Laparoscopic suturing and knot tying is essential for advanced laparoscopic procedures and requires training outside of the operating room. However, personal instruction by experienced surgeons is limitedly av...
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Open AccessInfluence of Body Mass Index and Gender on Stigmatization of Obesity
Stigmatization and discrimination of people with obesity due to their weight are a common problem that may lead to additional weight gain. This study evaluated the influence of different parameters on the stig...
