Background The routine collection of large amounts of clinical data,'big data', is becoming
more common, as are research studies that make use of these data source. The aim of this …

Introduction Iatrogenic splenic injury is a recognized complication in abdominal surgery. The
aim of this paper is to understand the medico-legal issues of iatrogenic splenic injuries. We …

Importance Racial disparities in timely diagnosis and treatment of surgical conditions exist;
however, it is poorly understood whether there are hospital structural measures or patient …

The TRIPOD-Cluster (transparent reporting of multivariable prediction models developed or
validated using clustered data) statement comprises a 19 item checklist, which aims to …

Objective To identify clinical factors predictive of patients returning to the operating room
(OR) for hemorrhage after craniotomy. Methods A national surgical quality database …

Background Existing large clinical registries capture short-term follow-up. Yet, there are
many important long-term outcomes in surgery, such as recurrence of a ventral hernia after …

Objective The effect of incidental splenectomy during thoracoabdominal aortic aneurysm
repair is unknown. We hypothesized incidental splenectomy was associated with decreased …

This chapter addresses important steps during the quality assurance and control of RWD,
with particular emphasis on the identification and handling of missing values. A gentle …

19.1 Existing CPMs 264 19.2 Validation of existing CPMs 266 19.3 The role of Thoracoscore
267 19.4 The relevance of alternative clinical variables 268 19.5 Development of the …

Objective: This study was conducted to evaluate the validity of the International
Classification of Diseases, 10th revision (ICD-10) codes for identifying patients who suffered …