Retrospective studies bias cause-effect relationship chart review interpretation limitations. Researchers should avoid over generalisation of results and be cautious in claiming cause-effect relationship in retrospective studies. Readers need to critically evaluate the methods and carefully interpret the results of retrospective studies before they put them to practice. Selection and recall biases also affect the results and reasons for differences in treatment between patients and lost follow ups can often not be ascertained and may lead to bias. In this paper a systematic and scientific approach to chart review. Since they depend on review of charts that were originally not designed to collect data for research, some information is bound to be missing. Introduction: Retrospective research has become largely undervalued and underutilized in child and adolescent psychiatry with the increasing singular focus on randomized control trials, despite the wealth of clinically relevant data available in his-torical medical records. Retrospective studies however have several limitations owing to their design. Findings of these studies can form the basis on which prospective studies are planned. Retrospective studies are an important tool to study rare diseases, manifestations and outcomes. A thorough understanding of the pros and cons of the various study designs is critical to correct interpretation of their results. Request PDF Epidural anesthesia during childbirth retrospective analysis of maternal and neonatal results Objectives: In Poland, in accordance with applicable regulations, every woman. Simple summaryLow-grade serous ovarian cancer (LGSOC) represents an uncommon histotype of serous ovarian cancer (accounting for approximately 5 of all ovarian cancer) with a distinct behavior compared to its high-grade serous counterpart, characterized by a better prognosis and low response rate to chemotherapeutic agents.
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